pkg/report: implement arm oops parsing

14 files changed, 675 insertions, 9 deletions

diff --git a/pkg/report/testdata/linux/guilty/50 b/pkg/report/testdata/linux/guilty/50
new file mode 100644
index 000000000..93d653bd5
--- /dev/null
+++ b/pkg/report/testdata/linux/guilty/50
@@ -0,0 +1,119 @@
+FILE: include/linux/spinlock.h
+
+=============================
+[ BUG: Invalid wait context ]
+5.10.2 #14 Not tainted
+-----------------------------
+udevd/95 is trying to lock:
+81e70810 (&n->list_lock){..-.}-{3:3}, at: spin_lock include/linux/spinlock.h:354 [inline]
+81e70810 (&n->list_lock){..-.}-{3:3}, at: deactivate_slab+0x2a8/0x558 mm/slub.c:2244
+other info that might help us debug this:
+context-{2:2}
+2 locks held by udevd/95:
+ #0: 81dd4d20 (&mm->mmap_lock){++++}-{4:4}, at: __might_fault mm/memory.c:5032 [inline]
+ #0: 81dd4d20 (&mm->mmap_lock){++++}-{4:4}, at: __might_fault+0x98/0xf8 mm/memory.c:5018
+ #1: 812239d8 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2466 [inline]
+ #1: 812239d8 (rcu_callback){....}-{0:0}, at: rcu_core+0x314/0xa74 kernel/rcu/tree.c:2711
+stack backtrace:
+CPU: 0 PID: 95 Comm: udevd Not tainted 5.10.2 #14
+Hardware name: ARM-Versatile Express
+Backtrace: 
+[<80de0078>] (dump_backtrace) from [<80de0574>] (show_stack+0x28/0x2c)
+ r9:600f0193 r8:ffffffff r7:00000000 r6:00000080 r5:8101acf4 r4:00000000
+[<80de054c>] (show_stack) from [<80de7c10>] (dump_stack+0x154/0x1a8)
+ r5:00000000 r4:81260dfc
+[<80de7abc>] (dump_stack) from [<801bba34>] (__lock_acquire+0x840/0x30e0)
+ r10:83358588 r9:00000000 r8:83358000 r7:00000013 r6:00040000 r5:817125d4
+ r4:00000002 r3:00000000
+[<801bb1f4>] (__lock_acquire) from [<801bed58>] (lock_acquire.part.0+0xc4/0x4b4)
+ r10:00000000 r9:81e70810 r8:81167528 r7:3d659000 r6:600f0193 r5:83341808
+ r4:81167528
+[<801bec94>] (lock_acquire.part.0) from [<801bf1b0>] (lock_acquire+0x68/0x74)
+ r10:803981dc r9:00000000 r8:00000001 r7:00000000 r6:00000000 r5:00000000
+ r4:81e70810
+[<801bf148>] (lock_acquire) from [<80df7ffc>] (_raw_spin_lock+0x4c/0x5c)
+ r10:00000000 r9:818ca800 r8:8e2e6000 r7:8e2e4000 r6:829c0900 r5:80040001
+ r4:81e70800
+[<80df7fb0>] (_raw_spin_lock) from [<803981dc>] (deactivate_slab+0x2a8/0x558)
+ r4:be9b7c00
+[<80397f34>] (deactivate_slab) from [<80398960>] (flush_cpu_slab+0x48/0x68)
+ r10:829c0900 r9:8100b3ec r8:00000000 r7:8d25dc50 r6:00000000 r5:ff7dd310
+ r4:829c0900
+[<80398918>] (flush_cpu_slab) from [<8022d134>] (flush_smp_call_function_queue+0x14c/0x554)
+ r5:80398918 r4:00000000
+[<8022cfe8>] (flush_smp_call_function_queue) from [<8022edc4>] (generic_smp_call_function_single_interrupt+0x18/0x1c)
+ r10:000003fb r9:81c20400 r8:0000003b r7:807bc808 r6:81c0cbc0 r5:00000000
+ r4:00000003
+[<8022edac>] (generic_smp_call_function_single_interrupt) from [<80116e24>] (do_handle_IPI+0x234/0x590)
+[<80116bf0>] (do_handle_IPI) from [<801171a4>] (ipi_handler+0x24/0x30)
+ r10:000003fb r9:81c20400 r8:0000003b r7:807bc808 r6:81c0cbc0 r5:00000013
+ r4:00000013 r3:81208ea0
+[<80117180>] (ipi_handler) from [<801dd3d0>] (handle_percpu_devid_fasteoi_ipi+0x8c/0xa4)
+ r5:00000013 r4:81c85e00
+[<801dd344>] (handle_percpu_devid_fasteoi_ipi) from [<801d319c>] (__handle_domain_irq+0xc0/0x12c)
+ r7:812231ec r6:83341d10 r5:81170f7c r4:00000000
+[<801d30dc>] (__handle_domain_irq) from [<807bcf60>] (gic_handle_irq+0xc0/0xfc)
+ r9:8120956c r8:00000000 r7:c0802000 r6:83341a90 r5:00000003 r4:00000403
+[<807bcea0>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0x98)
+Exception stack(0x83341a90 to 0x83341ad8)
+1a80:                                     d1ee2b67 d1ee2b67 00000001 00015a2e
+1aa0: 000f0113 8194cdfc 00000002 00000000 00000002 8e0983c0 8e098280 83341af4
+1ac0: 83341ac0 83341ae0 8028d800 80df8480 600f0113 ffffffff
+ r10:8e098280 r9:83340000 r8:00000002 r7:83341ac4 r6:ffffffff r5:600f0113
+ r4:80df8480
+[<80df844c>] (_raw_spin_unlock_irqrestore) from [<80726a08>] (__debug_check_no_obj_freed+0x128/0x240)
+ r5:8e098280 r4:83531a98
+[<807268e0>] (__debug_check_no_obj_freed) from [<80727c54>] (debug_check_no_obj_freed+0x20/0x28)
+ r10:83341be0 r9:818ca800 r8:be9b3300 r7:803b3ac8 r6:600f0113 r5:8e098280
+ r4:81c02780
+[<80727c34>] (debug_check_no_obj_freed) from [<8039bb2c>] (kmem_cache_free+0x16c/0x50c)
+[<8039b9c0>] (kmem_cache_free) from [<803b3ac8>] (file_free_rcu+0x6c/0x84)
+ r10:83341be0 r9:80e04848 r8:812239d8 r7:00000000 r6:0000000d r5:8e098280
+ r4:832cc580
+[<803b3a5c>] (file_free_rcu) from [<801f3e54>] (rcu_core+0x2b4/0xa74)
+ r7:00000000 r6:0000000a r5:00000003 r4:8e098280
+[<801f3ba0>] (rcu_core) from [<801f474c>] (rcu_core_si+0x10/0x14)
+ r10:00000002 r9:81208ed8 r8:00000002 r7:00000003 r6:00000009 r5:812030a4
+ r4:83340000
+[<801f473c>] (rcu_core_si) from [<801013c0>] (__do_softirq+0xf0/0x698)
+[<801012d0>] (__do_softirq) from [<8014c104>] (__irq_exit_rcu+0xb4/0x170)
+ r10:000003fb r9:81c20400 r8:0000003b r7:812231ec r6:00000000 r5:81170f7c
+ r4:ffffe000
+[<8014c050>] (__irq_exit_rcu) from [<8014c5a4>] (irq_exit+0x10/0x30)
+ r5:81170f7c r4:00000000
+[<8014c594>] (irq_exit) from [<801d31a4>] (__handle_domain_irq+0xc8/0x12c)
+[<801d30dc>] (__handle_domain_irq) from [<807bcf60>] (gic_handle_irq+0xc0/0xfc)
+ r9:8120956c r8:00000010 r7:c0802000 r6:83341d10 r5:0000001b r4:0000001b
+[<807bcea0>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0x98)
+Exception stack(0x83341d10 to 0x83341d58)
+1d00:                                     00000001 00000013 3d659000 00000000
+1d20: 81167528 83341d60 600f0013 3d659000 81167528 81dd4d20 00000000 83341dd4
+1d40: 83341c90 83341d60 801bb4a0 801bed74 600f0013 ffffffff
+ r10:00000000 r9:83340000 r8:81167528 r7:83341d44 r6:ffffffff r5:600f0013
+ r4:801bed74
+[<801bec94>] (lock_acquire.part.0) from [<801bf1b0>] (lock_acquire+0x68/0x74)
+ r10:8034d690 r9:00000000 r8:00000001 r7:00000001 r6:00000000 r5:00000000
+ r4:81dd4d20
+[<801bf148>] (lock_acquire) from [<8034d6b4>] (__might_fault+0xbc/0xf8)
+ r10:00000020 r9:81040ce8 r8:81040ce8 r7:83340000 r6:ffffe000 r5:00000000
+ r4:81dd4c80
+[<8034d5f8>] (__might_fault) from [<8078b458>] (strncpy_from_user+0x184/0x34c)
+ r8:83340000 r7:65752f33 r6:00000000 r5:00000000 r4:00000fd0
+[<8078b2d4>] (strncpy_from_user) from [<803cdd00>] (getname_flags+0x4c/0x1e8)
+ r10:000a0000 r9:81209448 r8:00000000 r7:00000000 r6:7ea2c138 r5:7ea2c138
+ r4:81e18000
+[<803cdcb4>] (getname_flags) from [<803cdec0>] (getname+0x24/0x28)
+ r10:000a0000 r9:00000000 r8:7ea2c138 r7:ffffff9c r6:83341f40 r5:7ea2c138
+ r4:7ea2c138 r3:00000000
+[<803cde9c>] (getname) from [<803abf4c>] (do_sys_openat2+0x88/0x234)
+ r5:7ea2c138 r4:00000000
+[<803abec4>] (do_sys_openat2) from [<803ac768>] (sys_openat+0xac/0x118)
+ r10:000a0000 r9:00000000 r8:7ea2c138 r7:ffffff9c r6:00000000 r5:00000000
+ r4:00000000
+[<803ac6bc>] (sys_openat) from [<80100080>] (ret_fast_syscall+0x0/0x28)
+Exception stack(0x83341fa8 to 0x83341ff0)
+1fa0:                   0005fb88 76f36840 ffffff9c 7ea2c138 000a0000 00000000
+1fc0: 0005fb88 76f36840 00000008 00000142 0005fb88 00000066 7ea3058c 00000000
+1fe0: 00000000 7ea2c080 76ba33dc 76c00200
+ r10:00000142 r9:83340000 r8:80100244 r7:00000142 r6:00000008 r5:76f36840
+ r4:0005fb88
diff --git a/pkg/report/testdata/linux/report/237 b/pkg/report/testdata/linux/report/237
index f25046de5..6dce8b337 100644
--- a/pkg/report/testdata/linux/report/237
+++ b/pkg/report/testdata/linux/report/237
@@ -1,11 +1,11 @@
-TITLE: INFO: rcu detected stall in corrupted
+TITLE: INFO: rcu detected stall in mount
 TYPE: HANG
-CORRUPTED: Y
 
 INFO: rcu_sched detected stalls on CPUs/tasks:
 	(detected by 0, t=2102 jiffies, g=84543, c=84542, q=6)
 All QSes seen, last rcu_sched kthread activity 2102 (149490-147388), jiffies_till_next_fqs=1, root ->qsmask 0x0
 syz-executor1   R  running task        0  7464   1210 0x00000003
+Backtrace: 
 [<8011218c>] (unwind_backtrace) from [<8010e300>] (show_stack+0x18/0x1c)
 [<8010e300>] (show_stack) from [<8018de80>] (rcu_check_callbacks+0x7a0/0x7a8)
 [<8018de80>] (rcu_check_callbacks) from [<80192868>] (update_process_times+0x38/0x68)
diff --git a/pkg/report/testdata/linux/report/241 b/pkg/report/testdata/linux/report/241
index 891cf28ad..93a86635c 100644
--- a/pkg/report/testdata/linux/report/241
+++ b/pkg/report/testdata/linux/report/241
@@ -1,5 +1,4 @@
-TITLE: Unhandled fault in corrupted
-CORRUPTED: Y
+TITLE: Unhandled fault in n_tty_set_termios
 
 Unhandled fault: page domain fault (0x81b) at 0x00001044
 pgd = 74561366
diff --git a/pkg/report/testdata/linux/report/243 b/pkg/report/testdata/linux/report/243
index 6dca35c42..44f0aa5d2 100644
--- a/pkg/report/testdata/linux/report/243
+++ b/pkg/report/testdata/linux/report/243
@@ -1,6 +1,4 @@
-# TODO: this is uncorrupted ARM report.
-TITLE: BUG: unable to handle kernel paging request in corrupted
-CORRUPTED: Y
+TITLE: BUG: unable to handle kernel paging request in migrate_task_rq_fair
 
 syzkaller login: Unable to handle kernel paging request at virtual address fc14ef08
 pgd = c60b8887
diff --git a/pkg/report/testdata/linux/report/45 b/pkg/report/testdata/linux/report/45
index 77a7982ac..47cd4c5da 100644
--- a/pkg/report/testdata/linux/report/45
+++ b/pkg/report/testdata/linux/report/45
@@ -1,4 +1,4 @@
-TITLE: BUG: unable to handle kernel paging request in corrupted
+TITLE: BUG: unable to handle kernel paging request in _snd_timer_stop
 CORRUPTED: Y
 
 [  167.347989] Disabling lock debugging due to kernel taint
diff --git a/pkg/report/testdata/linux/report/46 b/pkg/report/testdata/linux/report/46
index 75994778d..481726f4e 100644
--- a/pkg/report/testdata/linux/report/46
+++ b/pkg/report/testdata/linux/report/46
@@ -1,4 +1,4 @@
-TITLE: BUG: unable to handle kernel paging request in corrupted
+TITLE: BUG: unable to handle kernel paging request in blk_rq_map_sg
 CORRUPTED: Y
 
 [ 1722.511384] Unable to handle kernel paging request at virtual address 0c0c9ca0
diff --git a/pkg/report/testdata/linux/report/546 b/pkg/report/testdata/linux/report/546
new file mode 100644
index 000000000..0bf85f8d3
--- /dev/null
+++ b/pkg/report/testdata/linux/report/546
@@ -0,0 +1,86 @@
+TITLE: WARNING: locking bug in deactivate_slab
+
+[  669.483353][    C1] =============================
+[  669.483797][    C1] [ BUG: Invalid wait context ]
+[  669.484620][    C1] 5.10.2 #14 Not tainted
+[  669.485076][    C1] -----------------------------
+[  669.485554][    C1] udevd/95 is trying to lock:
+[  669.487336][    C1] 83711010 (&n->list_lock){..-.}-{3:3}, at: deactivate_slab+0x2a8/0x558
+[  669.489135][    C1] other info that might help us debug this:
+[  669.489511][    C1] context-{2:2}
+[  669.489868][    C1] 1 lock held by udevd/95:
+[  669.490182][    C1]  #0: 81223780 (rcu_read_lock){....}-{1:3}, at: __d_lookup+0x0/0x4a8
+[  669.491061][    C1] stack backtrace:
+[  669.491629][    C1] CPU: 1 PID: 95 Comm: udevd Not tainted 5.10.2 #14
+[  669.492022][    C1] Hardware name: ARM-Versatile Express
+[  669.492501][    C1] Backtrace: 
+[  669.493152][    C1] [<80de0078>] (dump_backtrace) from [<80de0574>] (show_stack+0x28/0x2c)
+[  669.493863][    C1]  r9:400f0193 r8:ffffffff r7:00000001 r6:00000080 r5:8101acf4 r4:00000000
+[  669.494507][    C1] [<80de054c>] (show_stack) from [<80de7c10>] (dump_stack+0x154/0x1a8)
+[  669.495015][    C1]  r5:00000000 r4:81260dfc
+[  669.495628][    C1] [<80de7abc>] (dump_stack) from [<801bba34>] (__lock_acquire+0x840/0x30e0)
+[  669.496751][    C1]  r10:8336a068 r9:00000000 r8:83369b00 r7:00000013 r6:00040000 r5:817125d4
+[  669.497613][    C1]  r4:00000001 r3:00000000
+[  669.498525][    C1] [<801bb1f4>] (__lock_acquire) from [<801bed58>] (lock_acquire.part.0+0xc4/0x4b4)
+[  669.499666][    C1]  r10:00000000 r9:83711010 r8:81167528 r7:3d66c000 r6:600f0193 r5:83381938
+[  669.500439][    C1]  r4:81167528
+[  669.501272][    C1] [<801bec94>] (lock_acquire.part.0) from [<801bf1b0>] (lock_acquire+0x68/0x74)
+[  669.502299][    C1]  r10:803981dc r9:00000000 r8:00000001 r7:00000000 r6:00000000 r5:00000000
+[  669.502772][    C1]  r4:83711010
+[  669.503297][    C1] [<801bf148>] (lock_acquire) from [<80df7ffc>] (_raw_spin_lock+0x4c/0x5c)
+[  669.503975][    C1]  r10:00000000 r9:818ca800 r8:8f9f6000 r7:8f9f4000 r6:83721000 r5:80040001
+[  669.504455][    C1]  r4:83711000
+[  669.504939][    C1] [<80df7fb0>] (_raw_spin_lock) from [<803981dc>] (deactivate_slab+0x2a8/0x558)
+[  669.505461][    C1]  r4:be9e5e00
+[  669.506204][    C1] [<80397f34>] (deactivate_slab) from [<80398960>] (flush_cpu_slab+0x48/0x68)
+[  669.507298][    C1]  r10:83721000 r9:8100b3ec r8:00000000 r7:83645c50 r6:00000000 r5:be7e5f50
+[  669.508051][    C1]  r4:83721000
+[  669.508532][    C1] [<80398918>] (flush_cpu_slab) from [<8022d134>] (flush_smp_call_function_queue+0x14c/0x554)
+[  669.509042][    C1]  r5:80398918 r4:00000000
+[  669.509526][    C1] [<8022cfe8>] (flush_smp_call_function_queue) from [<8022edc4>] (generic_smp_call_function_single_interrupt+0x18/0x1c)
+[  669.510210][    C1]  r10:000003fb r9:81c20400 r8:0000003b r7:807bc808 r6:81c0cbc0 r5:00000001
+[  669.510624][    C1]  r4:00000003
+[  669.511073][    C1] [<8022edac>] (generic_smp_call_function_single_interrupt) from [<80116e24>] (do_handle_IPI+0x234/0x590)
+[  669.511690][    C1] [<80116bf0>] (do_handle_IPI) from [<801171a4>] (ipi_handler+0x24/0x30)
+[  669.512299][    C1]  r10:000003fb r9:81c20400 r8:0000003b r7:807bc808 r6:81c0cbc0 r5:00000013
+[  669.512756][    C1]  r4:00000013 r3:81208ea0
+[  669.513233][    C1] [<80117180>] (ipi_handler) from [<801dd3d0>] (handle_percpu_devid_fasteoi_ipi+0x8c/0xa4)
+[  669.513719][    C1]  r5:00000013 r4:81c85e00
+[  669.514184][    C1] [<801dd344>] (handle_percpu_devid_fasteoi_ipi) from [<801d319c>] (__handle_domain_irq+0xc0/0x12c)
+[  669.514763][    C1]  r7:812231ec r6:00000000 r5:81170f7c r4:00000000
+[  669.515289][    C1] [<801d30dc>] (__handle_domain_irq) from [<807bcf60>] (gic_handle_irq+0xc0/0xfc)
+[  669.516184][    C1]  r9:8120956c r8:00000000 r7:c0802000 r6:83381bc0 r5:00000003 r4:00000003
+[  669.517081][    C1] [<807bcea0>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0x98)
+[  669.517933][    C1] Exception stack(0x83381bc0 to 0x83381c08)
+[  669.518789][    C1] 1bc0: 00000001 00000001 83369b00 00000000 826e3020 0162f70c 8129e7ac 000002c5
+[  669.519554][    C1] 1be0: be740000 00000001 8259e180 83381c64 83381c10 83381c10 803e3050 80dee90c
+[  669.520087][    C1] 1c00: 800f0013 ffffffff
+[  669.520647][    C1]  r10:8259e180 r9:83380000 r8:be740000 r7:83381bf4 r6:ffffffff r5:800f0013
+[  669.521056][    C1]  r4:80dee90c
+[  669.521492][    C1] [<803e2f90>] (__d_lookup) from [<803c9480>] (lookup_fast+0x124/0x2a8)
+[  669.522078][    C1]  r10:00000000 r9:8259e180 r8:83381cb0 r7:83381cac r6:00000000 r5:83381e18
+[  669.522479][    C1]  r4:83381e20
+[  669.522892][    C1] [<803c935c>] (lookup_fast) from [<803cb778>] (walk_component+0x58/0x2ac)
+[  669.523473][    C1]  r10:00000000 r9:0162f70c r8:fefefeff r7:00000004 r6:00000002 r5:83381e18
+[  669.523883][    C1]  r4:00000000
+[  669.524318][    C1] [<803cb720>] (walk_component) from [<803cbd70>] (link_path_walk.part.0+0x3a4/0x584)
+[  669.524940][    C1]  r10:00000000 r9:0162f70c r8:fefefeff r7:00000004 r6:81d7902e r5:00000004
+[  669.525356][    C1]  r4:00000075
+[  669.526027][    C1] [<803cb9cc>] (link_path_walk.part.0) from [<803cc430>] (path_openat+0x100/0x17bc)
+[  669.526999][    C1]  r10:83381e18 r9:00000000 r8:81d79010 r7:00000000 r6:83381e18 r5:00000000
+[  669.527680][    C1]  r4:00001051
+[  669.528153][    C1] [<803cc330>] (path_openat) from [<803cfc70>] (do_filp_open+0x94/0x170)
+[  669.528740][    C1]  r10:000a0000 r9:00000000 r8:00000001 r7:00000000 r6:83381e18 r5:83380000
+[  669.529152][    C1]  r4:83381ef0
+[  669.529564][    C1] [<803cfbdc>] (do_filp_open) from [<803abfac>] (do_sys_openat2+0xe8/0x234)
+[  669.530122][    C1]  r8:81d79000 r7:ffffff9c r6:83381f40 r5:7eaf6138 r4:0000000c
+[  669.530807][    C1] [<803abec4>] (do_sys_openat2) from [<803ac768>] (sys_openat+0xac/0x118)
+[  669.531437][    C1]  r10:000a0000 r9:00000000 r8:7eaf6138 r7:ffffff9c r6:00000000 r5:00000000
+[  669.531844][    C1]  r4:00000000
+[  669.532280][    C1] [<803ac6bc>] (sys_openat) from [<80100080>] (ret_fast_syscall+0x0/0x28)
+[  669.532700][    C1] Exception stack(0x83381fa8 to 0x83381ff0)
+[  669.533293][    C1] 1fa0:                   0005fb88 76f63840 ffffff9c 7eaf6138 000a0000 00000000
+[  669.534048][    C1] 1fc0: 0005fb88 76f63840 00000008 00000142 0005fb88 00000065 7eafa58c 00000000
+[  669.534635][    C1] 1fe0: 00000000 7eaf6080 76bd03dc 76c2d200
+[  669.535192][    C1]  r10:00000142 r9:83380000 r8:80100244 r7:00000142 r6:00000008 r5:76f63840
+[  669.535760][    C1]  r4:0005fb88
diff --git a/pkg/report/testdata/linux/report/547 b/pkg/report/testdata/linux/report/547
new file mode 100644
index 000000000..578544199
--- /dev/null
+++ b/pkg/report/testdata/linux/report/547
@@ -0,0 +1,67 @@
+TITLE: INFO: rcu detected stall in do_tcp_setsockopt
+TYPE: HANG
+
+[ 1335.106333][    C1] rcu: INFO: rcu_sched self-detected stall on CPU
+[ 1335.138473][    C1] rcu: 	1-....: (2599 ticks this GP) idle=61e/1/0x40000002 softirq=26532/26532 fqs=1286 
+[ 1335.139551][    C1] 	(t=2603 jiffies g=52717 q=8)
+[ 1335.140526][    C1] NMI backtrace for cpu 1
+[ 1335.141218][    C1] CPU: 1 PID: 4246 Comm: syz-executor.0 Not tainted 5.10.2 #14
+[ 1335.142006][    C1] Hardware name: ARM-Versatile Express
+[ 1335.142529][    C1] Backtrace: 
+[ 1335.143447][    C1] [<80de0078>] (dump_backtrace) from [<80de0574>] (show_stack+0x28/0x2c)
+[ 1335.144482][    C1]  r9:40000193 r8:ffffffff r7:00000001 r6:00000080 r5:8101acf4 r4:00000000
+[ 1335.145411][    C1] [<80de054c>] (show_stack) from [<80de7c10>] (dump_stack+0x154/0x1a8)
+[ 1335.146380][    C1]  r5:00000000 r4:81260dfc
+[ 1335.147235][    C1] [<80de7abc>] (dump_stack) from [<807a02bc>] (nmi_cpu_backtrace+0x170/0x20c)
+[ 1335.148412][    C1]  r10:81208ed4 r9:80e032f0 r8:801167a4 r7:00000001 r6:00000000 r5:00000001
+[ 1335.149201][    C1]  r4:00000000 r3:00010002
+[ 1335.150100][    C1] [<807a014c>] (nmi_cpu_backtrace) from [<807a04f8>] (nmi_trigger_cpumask_backtrace+0x1a0/0x2c8)
+[ 1335.151123][    C1]  r7:00000001 r6:81209554 r5:00000001 r4:00000000
+[ 1335.152100][    C1] [<807a0358>] (nmi_trigger_cpumask_backtrace) from [<80117f6c>] (arch_trigger_cpumask_backtrace+0x28/0x30)
+[ 1335.153283][    C1]  r9:00000149 r8:8129efa0 r7:81225180 r6:81225180 r5:00000000 r4:80e032f0
+[ 1335.154351][    C1] [<80117f44>] (arch_trigger_cpumask_backtrace) from [<80de347c>] (rcu_dump_cpu_stacks+0xe4/0x138)
+[ 1335.155203][    C1]  r5:81208f68 r4:00000001
+[ 1335.156050][    C1] [<80de3398>] (rcu_dump_cpu_stacks) from [<801f6894>] (rcu_sched_clock_irq+0x730/0x9a0)
+[ 1335.157264][    C1]  r10:81205d00 r9:3d66c000 r8:812a63c4 r7:81172a40 r6:00000000 r5:be7dea40
+[ 1335.157998][    C1]  r4:81225180
+[ 1335.158784][    C1] [<801f6164>] (rcu_sched_clock_irq) from [<80205c8c>] (update_process_times+0x9c/0xec)
+[ 1335.159895][    C1]  r10:00000001 r9:81c20400 r8:00000000 r7:3d66c000 r6:be7d7780 r5:fffffc4d
+[ 1335.160636][    C1]  r4:00000000
+[ 1335.161434][    C1] [<80205bf0>] (update_process_times) from [<80222b0c>] (tick_periodic+0x68/0x24c)
+[ 1335.162392][    C1]  r7:be7e10c0 r6:802233ec r5:00000000 r4:00000003
+[ 1335.163333][    C1] [<80222aa4>] (tick_periodic) from [<802233ec>] (tick_handle_periodic+0x38/0xd8)
+[ 1335.164325][    C1]  r8:00000000 r7:be7e10c0 r6:00000136 r5:be7e10c0 r4:d4cbfc80
+[ 1335.165274][    C1] [<802233b4>] (tick_handle_periodic) from [<80b38700>] (arch_timer_handler_virt+0x50/0x60)
+[ 1335.166418][    C1]  r10:000003fb r9:81c20400 r8:00000000 r7:8120956c r6:00000007 r5:be7e10c0
+[ 1335.167127][    C1]  r4:00000004
+[ 1335.167928][    C1] [<80b386b0>] (arch_timer_handler_virt) from [<801dd1c0>] (handle_percpu_devid_irq+0x9c/0x220)
+[ 1335.169218][    C1]  r7:8120956c r6:0000001c r5:81c89840 r4:81c87000
+[ 1335.170202][    C1] [<801dd124>] (handle_percpu_devid_irq) from [<801d319c>] (__handle_domain_irq+0xc0/0x12c)
+[ 1335.171304][    C1]  r10:000003fb r9:81c20400 r8:0000003b r7:812231ec r6:00000000 r5:81170f7c
+[ 1335.172013][    C1]  r4:00000000
+[ 1335.172829][    C1] [<801d30dc>] (__handle_domain_irq) from [<807bcf60>] (gic_handle_irq+0xc0/0xfc)
+[ 1335.173934][    C1]  r9:8120956c r8:00000010 r7:c0802000 r6:83711dd0 r5:0000001b r4:0000001b
+[ 1335.174870][    C1] [<807bcea0>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0x98)
+[ 1335.175566][    C1] Exception stack(0x83711dd0 to 0x83711e18)
+[ 1335.176461][    C1] 1dc0:                                     80ffa650 0000009c 00000000 00040000
+[ 1335.177758][    C1] 1de0: 0000009c 00000000 ffffe000 83710000 80ffa650 80e948a8 80ffa650 83711e54
+[ 1335.178887][    C1] 1e00: 83711e20 83711e20 8034d678 8018c67c 60000013 ffffffff
+[ 1335.179954][    C1]  r10:80ffa650 r9:83710000 r8:80ffa650 r7:83711e04 r6:ffffffff r5:60000013
+[ 1335.180693][    C1]  r4:8018c67c
+[ 1335.181528][    C1] [<8034d5f8>] (__might_fault) from [<80cc74b4>] (do_tcp_setsockopt.constprop.0+0xa70/0x14bc)
+[ 1335.182627][    C1]  r8:40000104 r7:20685fc8 r6:00000000 r5:1f97a13c r4:833d8000
+[ 1335.183610][    C1] [<80cc6a44>] (do_tcp_setsockopt.constprop.0) from [<80cc7fa0>] (tcp_setsockopt+0xa0/0xb4)
+[ 1335.184692][    C1]  r10:00000126 r9:00000003 r8:00000016 r7:20000084 r6:00000016 r5:833d8000
+[ 1335.185372][    C1]  r4:00000006
+[ 1335.186193][    C1] [<80cc7f04>] (tcp_setsockopt) from [<80bbdc48>] (sock_common_setsockopt+0x54/0x5c)
+[ 1335.187107][    C1]  r6:826da080 r5:00000016 r4:80cc7f00
+[ 1335.187975][    C1] [<80bbdbf8>] (sock_common_setsockopt) from [<80bbbe3c>] (__sys_setsockopt+0xc8/0x17c)
+[ 1335.188894][    C1]  r6:80bbdbf4 r5:00000006 r4:826da080
+[ 1335.189736][    C1] [<80bbbd74>] (__sys_setsockopt) from [<80bbbf30>] (sys_setsockopt+0x40/0x48)
+[ 1335.190805][    C1]  r9:83710000 r8:80100244 r7:20000080 r6:00000016 r5:00000006 r4:00000003
+[ 1335.191786][    C1] [<80bbbef0>] (sys_setsockopt) from [<80100080>] (ret_fast_syscall+0x0/0x28)
+[ 1335.192564][    C1] Exception stack(0x83711fa8 to 0x83711ff0)
+[ 1335.193581][    C1] 1fa0:                   20000084 00000000 00000003 00000006 00000016 20000080
+[ 1335.194819][    C1] 1fc0: 20000084 00000000 00000000 00000126 7ed63732 75e47160 75e46ca0 75e46c9c
+[ 1335.195814][    C1] 1fe0: 75e46ae8 75e46ad8 000152e8 0004ed10
+[ 1335.196684][    C1]  r7:00000126 r6:00000000 r5:00000000 r4:20000084
diff --git a/pkg/report/testdata/linux/report/548 b/pkg/report/testdata/linux/report/548
new file mode 100644
index 000000000..55b4cfda3
--- /dev/null
+++ b/pkg/report/testdata/linux/report/548
@@ -0,0 +1,69 @@
+TITLE: Unhandled fault in jffs2_parse_param
+
+8<--- cut here ---
+Unhandled fault: page domain fault (0x01b) at 0x00000008
+pgd = 4c5c9ce0
+[00000008] *pgd=9671f835, *pte=00000000, *ppte=00000000
+Internal error: : 1b [#1] SMP ARM
+Dumping ftrace buffer:
+   (ftrace buffer empty)
+Modules linked in:
+CPU: 0 PID: 24993 Comm: syz-executor.0 Not tainted 5.10.2 #10
+Hardware name: ARM-Versatile Express
+PC is at jffs2_parse_param+0xa8/0x18c
+LR is at jffs2_parse_param+0x98/0x18c
+pc : [<8054b7c0>]    lr : [<8054b7b0>]    psr: 40000013
+sp : 94771e60  ip : 00000002  fp : 00000000
+r10: 9675f000  r9 : 00000000  r8 : 00000000
+r7 : 9258f200  r6 : 0002b400  r5 : 9676fb80  r4 : 00000001
+r3 : 00000000  r2 : 00040000  r1 : cb584000  r0 : 00000005
+Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
+Control: 10c5387d  Table: 95fd006a  DAC: 00000051
+Process syz-executor.0 (pid: 24993, stack limit = 0x9c3a9348)
+Stack: (0x94771e60 to 0x94772000)
+1e60: 00000000 00000000 00000000 00000000 000000ad 00000000 00000000 81104e88
+1e80: 00000014 8054b718 9676fb80 94771ec0 00000000 00000000 00000014 8037e608
+1ea0: 967f4280 802b75bc 9675f008 9675f008 00000014 9675f000 9676fb80 8037e7dc
+1ec0: 9675f000 00000002 967f4280 00000014 00000000 81104e88 00000072 9675f000
+1ee0: 9675f008 80e65d98 9676fb80 8037e8e0 9675f01d 81104e88 00800000 9676fb80
+1f00: 00000020 00000000 967f4740 811521c0 00800000 80360ff0 94771f74 8033ee34
+1f20: ffffff9c 00000000 00000000 81104e88 00000051 00000000 00000000 75e869c0
+1f40: 00000051 967f4740 00000000 00000015 9675f000 80361cc8 9675f000 8010cb7c
+1f60: 9197f748 00000000 20000000 00800000 94770000 822f19d0 82d8b198 81104e88
+1f80: 00800000 75e869c0 20000000 00000000 00000015 80100284 94770000 00000015
+1fa0: 20000040 80100260 75e869c0 20000000 00000000 20000000 200009c0 00800000
+1fc0: 75e869c0 20000000 00000000 00000015 200009c0 00000000 75e86980 20000040
+1fe0: 00000001 75e86938 00015750 0004ffc0 20000010 00000000 00000000 00000000
+[<8054b7c0>] (jffs2_parse_param) from [<8037e608>] (vfs_parse_fs_param+0xf8/0x23c)
+[<8037e608>] (vfs_parse_fs_param) from [<8037e7dc>] (vfs_parse_fs_string+0x90/0xd4)
+[<8037e7dc>] (vfs_parse_fs_string) from [<8037e8e0>] (generic_parse_monolithic+0xc0/0x114)
+[<8037e8e0>] (generic_parse_monolithic) from [<80360ff0>] (path_mount+0xb10/0x10c0)
+[<80360ff0>] (path_mount) from [<80361cc8>] (sys_mount+0x21c/0x36c)
+[<80361cc8>] (sys_mount) from [<80100260>] (__sys_trace_return+0x0/0x20)
+Exception stack(0x94771fa8 to 0x94771ff0)
+1fa0:                   75e869c0 20000000 00000000 20000000 200009c0 00800000
+1fc0: 75e869c0 20000000 00000000 00000015 200009c0 00000000 75e86980 20000040
+1fe0: 00000001 75e86938 00015750 0004ffc0
+Code: e5973000 e2169602 13e09000 e1a06506 (e5934008) 
+---[ end trace 1e8bf21d99144682 ]---
+Kernel panic - not syncing: Fatal exception
+CPU1: stopping
+CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D           5.10.2 #10
+Hardware name: ARM-Versatile Express
+[<80118054>] (unwind_backtrace) from [<80110ce4>] (show_stack+0x20/0x24)
+[<80110ce4>] (show_stack) from [<80c16564>] (dump_stack+0x104/0x138)
+[<80c16564>] (dump_stack) from [<80115548>] (do_handle_IPI+0x3e8/0x45c)
+[<80115548>] (do_handle_IPI) from [<801155d8>] (ipi_handler+0x1c/0x28)
+[<801155d8>] (ipi_handler) from [<801aec5c>] (handle_percpu_devid_fasteoi_ipi+0x84/0x1a8)
+[<801aec5c>] (handle_percpu_devid_fasteoi_ipi) from [<801a59ec>] (__handle_domain_irq+0xb8/0x124)
+[<801a59ec>] (__handle_domain_irq) from [<806ab444>] (gic_handle_irq+0xb0/0xe8)
+[<806ab444>] (gic_handle_irq) from [<80100b6c>] (__irq_svc+0x6c/0x90)
+Exception stack(0x814fff60 to 0x814fffa8)
+ff60: 0048140c 00000000 814dc4c0 00000000 00000000 814fe000 00000000 00000001
+ff80: 81104ed4 81104f10 81067b90 814fffc0 00000000 814fffb0 8010c030 8010c034
+ffa0: 80000013 ffffffff
+[<80100b6c>] (__irq_svc) from [<8010c034>] (arch_cpu_idle+0x28/0x48)
+[<8010c034>] (arch_cpu_idle) from [<80c23ac4>] (default_idle_call+0x28/0xf0)
+[<80c23ac4>] (default_idle_call) from [<80181b30>] (do_idle+0x1cc/0x26c)
+[<80181b30>] (do_idle) from [<80181e88>] (cpu_startup_entry+0x18/0x1c)
+[<80181e88>] (cpu_startup_entry) from [<8010164c>] (__enable_mmu+0x0/0x14)
diff --git a/pkg/report/testdata/linux/report/549 b/pkg/report/testdata/linux/report/549
new file mode 100644
index 000000000..9d458490c
--- /dev/null
+++ b/pkg/report/testdata/linux/report/549
@@ -0,0 +1,48 @@
+TITLE: INFO: rcu detected stall in openat2
+TYPE: HANG
+
+rcu: INFO: rcu_sched self-detected stall on CPU
+rcu: 	0-...!: (2099 ticks this GP) idle=4c6/1/0x40000002 softirq=6646/6646 fqs=126 
+	(t=2100 jiffies g=11589 q=1)
+rcu: rcu_sched kthread starved for 1848 jiffies! g11589 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
+rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
+rcu: RCU grace-period kthread stack dump:
+task:rcu_sched       state:R  running task     stack:    0 pid:   10 ppid:     2 flags:0x00000000
+Backtrace: 
+[<80c1e5e8>] (__schedule) from [<80c1eb20>] (schedule+0x60/0xdc)
+[<80c1eb20>] (schedule) from [<80c2287c>] (schedule_timeout+0xac/0x1e8)
+[<80c2287c>] (schedule_timeout) from [<801c2674>] (rcu_gp_kthread+0x580/0x1020)
+[<801c2674>] (rcu_gp_kthread) from [<8016e220>] (kthread+0x174/0x18c)
+[<8016e220>] (kthread) from [<80100168>] (ret_from_fork+0x14/0x2c)
+Exception stack(0x814fbfb0 to 0x814fbff8)
+bfa0:                                     00000000 00000000 00000000 00000000
+bfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
+bfe0: 00000000 00000000 00000000 00000000 00000013 00000000
+NMI backtrace for cpu 0
+CPU: 0 PID: 1760 Comm: syz-executor.0 Not tainted 5.10.2 #10
+Hardware name: ARM-Versatile Express
+[<80118054>] (unwind_backtrace) from [<80110ce4>] (show_stack+0x20/0x24)
+[<80110ce4>] (show_stack) from [<80c16564>] (dump_stack+0x104/0x138)
+[<80c16564>] (dump_stack) from [<80692150>] (nmi_cpu_backtrace+0x10c/0x148)
+[<80692150>] (nmi_cpu_backtrace) from [<806922e8>] (nmi_trigger_cpumask_backtrace+0x15c/0x1c4)
+[<806922e8>] (nmi_trigger_cpumask_backtrace) from [<80c124b4>] (rcu_dump_cpu_stacks+0xcc/0x110)
+[<80c124b4>] (rcu_dump_cpu_stacks) from [<801c39e4>] (rcu_sched_clock_irq+0x6e4/0x98c)
+[<801c39e4>] (rcu_sched_clock_irq) from [<801d1124>] (update_process_times+0x94/0xf0)
+[<801d1124>] (update_process_times) from [<801e8104>] (tick_periodic+0x58/0xfc)
+[<801e8104>] (tick_periodic) from [<801e8684>] (tick_handle_periodic+0x30/0xd0)
+[<801e8684>] (tick_handle_periodic) from [<809dd6a4>] (arch_timer_handler_virt+0x48/0x58)
+[<809dd6a4>] (arch_timer_handler_virt) from [<801ae97c>] (handle_percpu_devid_irq+0x90/0x2ec)
+[<801ae97c>] (handle_percpu_devid_irq) from [<801a59ec>] (__handle_domain_irq+0xb8/0x124)
+[<801a59ec>] (__handle_domain_irq) from [<806ab444>] (gic_handle_irq+0xb0/0xe8)
+[<806ab444>] (gic_handle_irq) from [<80100b6c>] (__irq_svc+0x6c/0x90)
+Exception stack(0x91883f00 to 0x91883f48)
+3f00: 20b35644 7effffff 00040000 00000055 00000000 1f4cabd4 20000100 20000118
+3f20: 91882000 00000000 000001b5 75e4fc9c 00000051 91883f50 80616f68 80616f94
+3f40: 60000013 ffffffff
+[<80100b6c>] (__irq_svc) from [<80616f94>] (check_zeroed_user+0x140/0x1dc)
+[<80616f94>] (check_zeroed_user) from [<80321578>] (sys_openat2+0x124/0x170)
+[<80321578>] (sys_openat2) from [<80100080>] (ret_fast_syscall+0x0/0x54)
+Exception stack(0x91883fa8 to 0x91883ff0)
+3fa0:                   00000000 00000000 ffffff9c 200000c0 20000100 20000118
+3fc0: 00000000 00000000 00000000 000001b5 7e80d732 75e50160 75e4fca0 75e4fc9c
+3fe0: 75e4fae8 75e4fad8 000152e8 0004ed10
diff --git a/pkg/report/testdata/linux/report/550 b/pkg/report/testdata/linux/report/550
new file mode 100644
index 000000000..4722e867b
--- /dev/null
+++ b/pkg/report/testdata/linux/report/550
@@ -0,0 +1,35 @@
+TITLE: INFO: task hung in mpage_prepare_extent_to_map
+TYPE: HANG
+
+INFO: task syz-executor.0:10324 blocked for more than 122 seconds.
+      Not tainted 5.10.2 #10
+"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
+task:syz-executor.0  state:D stack:    0 pid:10324 ppid:  6326 flags:0x00000001
+Backtrace: 
+[<80c1e5e8>] (__schedule) from [<80c1eb20>] (schedule+0x60/0xdc)
+[<80c1eb20>] (schedule) from [<80c1ec14>] (io_schedule+0x48/0x6c)
+[<80c1ec14>] (io_schedule) from [<802893bc>] (wait_on_page_bit_common+0x1fc/0x59c)
+[<802893bc>] (wait_on_page_bit_common) from [<8028986c>] (__lock_page+0x64/0x84)
+[<8028986c>] (__lock_page) from [<8043e8d8>] (mpage_prepare_extent_to_map+0x3bc/0x4e4)
+[<8043e8d8>] (mpage_prepare_extent_to_map) from [<80447148>] (ext4_writepages+0x42c/0x18ac)
+[<80447148>] (ext4_writepages) from [<8029914c>] (do_writepages+0x54/0x12c)
+[<8029914c>] (do_writepages) from [<8028a384>] (__filemap_fdatawrite_range+0xfc/0x130)
+[<8028a384>] (__filemap_fdatawrite_range) from [<8028ac9c>] (file_write_and_wait_range+0x78/0xf8)
+[<8028ac9c>] (file_write_and_wait_range) from [<8042d3e8>] (ext4_sync_file+0x208/0x5dc)
+[<8042d3e8>] (ext4_sync_file) from [<80379258>] (vfs_fsync_range+0x64/0xc4)
+[<80379258>] (vfs_fsync_range) from [<80429be0>] (ext4_buffered_write_iter+0x1e0/0x234)
+[<80429be0>] (ext4_buffered_write_iter) from [<8042a4c0>] (ext4_file_write_iter+0x22c/0x118c)
+[<8042a4c0>] (ext4_file_write_iter) from [<803223b4>] (do_iter_readv_writev+0x318/0x348)
+[<803223b4>] (do_iter_readv_writev) from [<80323924>] (do_iter_write+0xe4/0x2d0)
+[<80323924>] (do_iter_write) from [<80323b50>] (vfs_iter_write+0x40/0x58)
+[<80323b50>] (vfs_iter_write) from [<80377328>] (iter_file_splice_write+0x3f4/0x5c8)
+[<80377328>] (iter_file_splice_write) from [<803755b8>] (direct_splice_actor+0x50/0x78)
+[<803755b8>] (direct_splice_actor) from [<80375b98>] (splice_direct_to_actor+0x188/0x3ec)
+[<80375b98>] (splice_direct_to_actor) from [<80375edc>] (do_splice_direct+0xe0/0x148)
+[<80375edc>] (do_splice_direct) from [<803241a4>] (do_sendfile+0x2d0/0x6e0)
+[<803241a4>] (do_sendfile) from [<803263ac>] (sys_sendfile+0x16c/0x188)
+[<803263ac>] (sys_sendfile) from [<80100080>] (ret_fast_syscall+0x0/0x54)
+Exception stack(0x944e9fa8 to 0x944e9ff0)
+9fa0:                   00000000 00000000 00000004 00000003 00000000 0000a198
+9fc0: 00000000 00000000 00000000 000000bb 7efb3732 75e84160 75e83ca0 75e83c9c
+9fe0: 75e83ae8 75e83ad8 000152e8 0004ed10
diff --git a/pkg/report/testdata/linux/report/551 b/pkg/report/testdata/linux/report/551
new file mode 100644
index 000000000..55b4cfda3
--- /dev/null
+++ b/pkg/report/testdata/linux/report/551
@@ -0,0 +1,69 @@
+TITLE: Unhandled fault in jffs2_parse_param
+
+8<--- cut here ---
+Unhandled fault: page domain fault (0x01b) at 0x00000008
+pgd = 4c5c9ce0
+[00000008] *pgd=9671f835, *pte=00000000, *ppte=00000000
+Internal error: : 1b [#1] SMP ARM
+Dumping ftrace buffer:
+   (ftrace buffer empty)
+Modules linked in:
+CPU: 0 PID: 24993 Comm: syz-executor.0 Not tainted 5.10.2 #10
+Hardware name: ARM-Versatile Express
+PC is at jffs2_parse_param+0xa8/0x18c
+LR is at jffs2_parse_param+0x98/0x18c
+pc : [<8054b7c0>]    lr : [<8054b7b0>]    psr: 40000013
+sp : 94771e60  ip : 00000002  fp : 00000000
+r10: 9675f000  r9 : 00000000  r8 : 00000000
+r7 : 9258f200  r6 : 0002b400  r5 : 9676fb80  r4 : 00000001
+r3 : 00000000  r2 : 00040000  r1 : cb584000  r0 : 00000005
+Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
+Control: 10c5387d  Table: 95fd006a  DAC: 00000051
+Process syz-executor.0 (pid: 24993, stack limit = 0x9c3a9348)
+Stack: (0x94771e60 to 0x94772000)
+1e60: 00000000 00000000 00000000 00000000 000000ad 00000000 00000000 81104e88
+1e80: 00000014 8054b718 9676fb80 94771ec0 00000000 00000000 00000014 8037e608
+1ea0: 967f4280 802b75bc 9675f008 9675f008 00000014 9675f000 9676fb80 8037e7dc
+1ec0: 9675f000 00000002 967f4280 00000014 00000000 81104e88 00000072 9675f000
+1ee0: 9675f008 80e65d98 9676fb80 8037e8e0 9675f01d 81104e88 00800000 9676fb80
+1f00: 00000020 00000000 967f4740 811521c0 00800000 80360ff0 94771f74 8033ee34
+1f20: ffffff9c 00000000 00000000 81104e88 00000051 00000000 00000000 75e869c0
+1f40: 00000051 967f4740 00000000 00000015 9675f000 80361cc8 9675f000 8010cb7c
+1f60: 9197f748 00000000 20000000 00800000 94770000 822f19d0 82d8b198 81104e88
+1f80: 00800000 75e869c0 20000000 00000000 00000015 80100284 94770000 00000015
+1fa0: 20000040 80100260 75e869c0 20000000 00000000 20000000 200009c0 00800000
+1fc0: 75e869c0 20000000 00000000 00000015 200009c0 00000000 75e86980 20000040
+1fe0: 00000001 75e86938 00015750 0004ffc0 20000010 00000000 00000000 00000000
+[<8054b7c0>] (jffs2_parse_param) from [<8037e608>] (vfs_parse_fs_param+0xf8/0x23c)
+[<8037e608>] (vfs_parse_fs_param) from [<8037e7dc>] (vfs_parse_fs_string+0x90/0xd4)
+[<8037e7dc>] (vfs_parse_fs_string) from [<8037e8e0>] (generic_parse_monolithic+0xc0/0x114)
+[<8037e8e0>] (generic_parse_monolithic) from [<80360ff0>] (path_mount+0xb10/0x10c0)
+[<80360ff0>] (path_mount) from [<80361cc8>] (sys_mount+0x21c/0x36c)
+[<80361cc8>] (sys_mount) from [<80100260>] (__sys_trace_return+0x0/0x20)
+Exception stack(0x94771fa8 to 0x94771ff0)
+1fa0:                   75e869c0 20000000 00000000 20000000 200009c0 00800000
+1fc0: 75e869c0 20000000 00000000 00000015 200009c0 00000000 75e86980 20000040
+1fe0: 00000001 75e86938 00015750 0004ffc0
+Code: e5973000 e2169602 13e09000 e1a06506 (e5934008) 
+---[ end trace 1e8bf21d99144682 ]---
+Kernel panic - not syncing: Fatal exception
+CPU1: stopping
+CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D           5.10.2 #10
+Hardware name: ARM-Versatile Express
+[<80118054>] (unwind_backtrace) from [<80110ce4>] (show_stack+0x20/0x24)
+[<80110ce4>] (show_stack) from [<80c16564>] (dump_stack+0x104/0x138)
+[<80c16564>] (dump_stack) from [<80115548>] (do_handle_IPI+0x3e8/0x45c)
+[<80115548>] (do_handle_IPI) from [<801155d8>] (ipi_handler+0x1c/0x28)
+[<801155d8>] (ipi_handler) from [<801aec5c>] (handle_percpu_devid_fasteoi_ipi+0x84/0x1a8)
+[<801aec5c>] (handle_percpu_devid_fasteoi_ipi) from [<801a59ec>] (__handle_domain_irq+0xb8/0x124)
+[<801a59ec>] (__handle_domain_irq) from [<806ab444>] (gic_handle_irq+0xb0/0xe8)
+[<806ab444>] (gic_handle_irq) from [<80100b6c>] (__irq_svc+0x6c/0x90)
+Exception stack(0x814fff60 to 0x814fffa8)
+ff60: 0048140c 00000000 814dc4c0 00000000 00000000 814fe000 00000000 00000001
+ff80: 81104ed4 81104f10 81067b90 814fffc0 00000000 814fffb0 8010c030 8010c034
+ffa0: 80000013 ffffffff
+[<80100b6c>] (__irq_svc) from [<8010c034>] (arch_cpu_idle+0x28/0x48)
+[<8010c034>] (arch_cpu_idle) from [<80c23ac4>] (default_idle_call+0x28/0xf0)
+[<80c23ac4>] (default_idle_call) from [<80181b30>] (do_idle+0x1cc/0x26c)
+[<80181b30>] (do_idle) from [<80181e88>] (cpu_startup_entry+0x18/0x1c)
+[<80181e88>] (cpu_startup_entry) from [<8010164c>] (__enable_mmu+0x0/0x14)
diff --git a/pkg/report/testdata/linux/report/552 b/pkg/report/testdata/linux/report/552
new file mode 100644
index 000000000..4d542de34
--- /dev/null
+++ b/pkg/report/testdata/linux/report/552
@@ -0,0 +1,73 @@
+TITLE: BUG: unable to handle kernel paging request in io_serial_out
+
+8<--- cut here ---
+Unable to handle kernel paging request at virtual address fee00001
+pgd = cd9e72c8
+[fee00001] *pgd=00000000
+Internal error: Oops: 805 [#1] SMP ARM
+Dumping ftrace buffer:
+   (ftrace buffer empty)
+Modules linked in:
+CPU: 0 PID: 21591 Comm: syz-executor.0 Not tainted 5.10.2 #10
+Hardware name: ARM-Versatile Express
+PC is at io_serial_out+0x40/0x48
+LR is at io_serial_out+0x28/0x48
+pc : [<8078e15c>]    lr : [<8078e144>]    psr: 20000093
+sp : 9e4ffe10  ip : 00000002  fp : 00000000
+r10: 82c92c74  r9 : 920a1340  r8 : 920a1340
+r7 : 0000001b  r6 : 811b9fa8  r5 : 00000000  r4 : 00000001
+r3 : fee00001  r2 : 00040000  r1 : cb584000  r0 : 811b9fa8
+Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
+Control: 10c5387d  Table: 9b54806a  DAC: 00000051
+Process syz-executor.0 (pid: 21591, stack limit = 0x3084032e)
+Stack: (0x9e4ffe10 to 0x9e500000)
+fe00:                                     811b9fa8 00000000 00000000 8078fba0
+fe20: 811b9fa8 82c92ca8 00000000 8078fba8 920a1340 8078fbec 82c92c00 811b9fa8
+fe40: 81d44b7c 80784f14 82c92c00 00000000 00000000 0000001b 920a1340 80763814
+fe60: 00000000 0000001b 82c92c00 0000001a 972bce40 200000c0 82c92c00 80758554
+fe80: 00000000 801ef828 ffffffff 3d764000 9e49abc0 00000402 9e4ffedc 00000000
+fea0: 814fa000 80218e8c 00000000 00000000 80171fec 00000000 972bce40 00000001
+fec0: 00000004 0000000c 80d12fe0 00000000 80344a0c 00005423 00000000 80218f54
+fee0: 00005423 00000000 80344a0c 00005423 972bce41 81104e88 972bce40 00005423
+ff00: 972bce41 80757adc 972bce40 200000c0 81d52f68 00000000 00000004 80344e20
+ff20: 00000ef1 8010cc9c 00000000 00000051 00000107 80100284 9e4fe000 80218e8c
+ff40: 00000000 00000000 75e8ead8 00000001 00000001 81104e88 00000036 8010cb7c
+ff60: 82ebe988 9e4fffb0 00000036 80100284 9e4fe000 00000040 75e8ec9c 81104e88
+ff80: 00000000 00000000 00000000 00000000 00000036 80100284 9e4fe000 00000036
+ffa0: 75e8ec9c 80100260 00000000 00000000 00000004 00005423 200000c0 00000000
+ffc0: 00000000 00000000 00000000 00000036 7e89e732 75e8f160 75e8eca0 75e8ec9c
+ffe0: 75e8eae8 75e8ead8 000152e8 0004ed10 60000010 00000004 00000000 00000000
+[<8078e15c>] (io_serial_out) from [<8078fba0>] (serial8250_do_set_ldisc+0x10c/0x114)
+[<8078fba0>] (serial8250_do_set_ldisc) from [<8078fbec>] (serial8250_set_ldisc+0x44/0x4c)
+[<8078fbec>] (serial8250_set_ldisc) from [<80784f14>] (uart_set_ldisc+0x4c/0x5c)
+[<80784f14>] (uart_set_ldisc) from [<80763814>] (tty_set_ldisc+0x1e4/0x2bc)
+[<80763814>] (tty_set_ldisc) from [<80758554>] (tty_ioctl+0xa78/0x1080)
+[<80758554>] (tty_ioctl) from [<80344e20>] (sys_ioctl+0x47c/0xed8)
+[<80344e20>] (sys_ioctl) from [<80100260>] (__sys_trace_return+0x0/0x20)
+Exception stack(0x9e4fffa8 to 0x9e4ffff0)
+ffa0:                   00000000 00000000 00000004 00005423 200000c0 00000000
+ffc0: 00000000 00000000 00000000 00000036 7e89e732 75e8f160 75e8eca0 75e8ec9c
+ffe0: 75e8eae8 75e8ead8 000152e8 0004ed10
+Code: e0844003 e3c434ff e3c3360f e2433612 (e5c35000) 
+---[ end trace 999c39366fb036fe ]---
+Kernel panic - not syncing: Fatal exception
+CPU1: stopping
+CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D           5.10.2 #10
+Hardware name: ARM-Versatile Express
+[<80118054>] (unwind_backtrace) from [<80110ce4>] (show_stack+0x20/0x24)
+[<80110ce4>] (show_stack) from [<80c16564>] (dump_stack+0x104/0x138)
+[<80c16564>] (dump_stack) from [<80115548>] (do_handle_IPI+0x3e8/0x45c)
+[<80115548>] (do_handle_IPI) from [<801155d8>] (ipi_handler+0x1c/0x28)
+[<801155d8>] (ipi_handler) from [<801aec5c>] (handle_percpu_devid_fasteoi_ipi+0x84/0x1a8)
+[<801aec5c>] (handle_percpu_devid_fasteoi_ipi) from [<801a59ec>] (__handle_domain_irq+0xb8/0x124)
+[<801a59ec>] (__handle_domain_irq) from [<806ab444>] (gic_handle_irq+0xb0/0xe8)
+[<806ab444>] (gic_handle_irq) from [<80100b6c>] (__irq_svc+0x6c/0x90)
+Exception stack(0x814fff60 to 0x814fffa8)
+ff60: 002ff1c4 00000000 814dc4c0 00000000 00000000 814fe000 00000000 00000001
+ff80: 81104ed4 81104f10 81067b90 814fffc0 00000000 814fffb0 8010c030 8010c034
+ffa0: 80000013 ffffffff
+[<80100b6c>] (__irq_svc) from [<8010c034>] (arch_cpu_idle+0x28/0x48)
+[<8010c034>] (arch_cpu_idle) from [<80c23ac4>] (default_idle_call+0x28/0xf0)
+[<80c23ac4>] (default_idle_call) from [<80181b30>] (do_idle+0x1cc/0x26c)
+[<80181b30>] (do_idle) from [<80181e88>] (cpu_startup_entry+0x18/0x1c)
+[<80181e88>] (cpu_startup_entry) from [<8010164c>] (__enable_mmu+0x0/0x14)
diff --git a/pkg/report/testdata/linux/report/553 b/pkg/report/testdata/linux/report/553
new file mode 100644
index 000000000..9dd09597f
--- /dev/null
+++ b/pkg/report/testdata/linux/report/553
@@ -0,0 +1,103 @@
+TITLE: inconsistent lock state in io_file_data_ref_zero
+
+[ 1034.371675][    C0] ================================
+[ 1034.372179][    C0] WARNING: inconsistent lock state
+[ 1034.372779][    C0] 5.10.2 #14 Not tainted
+[ 1034.373245][    C0] --------------------------------
+[ 1034.373871][    C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
+[ 1034.374564][    C0] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
+[ 1034.375670][    C0] 8f5cc25c (&file_data->lock){+.?.}-{3:3}, at: io_file_data_ref_zero+0x30/0x1a8
+[ 1034.378810][    C0] {SOFTIRQ-ON-W} state was registered at:
+[ 1034.379611][    C0]   lock_acquire.part.0+0xc4/0x4b4
+[ 1034.380272][    C0]   lock_acquire+0x68/0x74
+[ 1034.380831][    C0]   _raw_spin_lock+0x4c/0x5c
+[ 1034.381397][    C0]   sys_io_uring_register+0x20e4/0x2410
+[ 1034.381933][    C0]   ret_fast_syscall+0x0/0x28
+[ 1034.382528][    C0]   0x75ebdad8
+[ 1034.382919][    C0] irq event stamp: 1199040
+[ 1034.383522][    C0] hardirqs last  enabled at (1199040): [<80df84a0>] _raw_spin_unlock_irqrestore+0x54/0x58
+[ 1034.384293][    C0] hardirqs last disabled at (1199039): [<80df8200>] _raw_spin_lock_irqsave+0x74/0x78
+[ 1034.385062][    C0] softirqs last  enabled at (1199022): [<8014bb5c>] _local_bh_enable+0x2c/0x64
+[ 1034.385644][    C0] softirqs last disabled at (1199023): [<8014c104>] __irq_exit_rcu+0xb4/0x170
+[ 1034.386064][    C0] 
+[ 1034.386064][    C0] other info that might help us debug this:
+[ 1034.386617][    C0]  Possible unsafe locking scenario:
+[ 1034.386617][    C0] 
+[ 1034.387169][    C0]        CPU0
+[ 1034.387568][    C0]        ----
+[ 1034.387831][    C0]   lock(&file_data->lock);
+[ 1034.388241][    C0]   <Interrupt>
+[ 1034.388486][    C0]     lock(&file_data->lock);
+[ 1034.388933][    C0] 
+[ 1034.388933][    C0]  *** DEADLOCK ***
+[ 1034.388933][    C0] 
+[ 1034.389401][    C0] 2 locks held by swapper/0/0:
+[ 1034.389769][    C0]  #0: 812239d8 (rcu_callback){....}-{0:0}, at: rcu_core+0x314/0xa74
+[ 1034.390619][    C0]  #1: 81223780 (rcu_read_lock){....}-{1:3}, at: percpu_ref_put_many.constprop.0+0x0/0x250
+[ 1034.391504][    C0] 
+[ 1034.391504][    C0] stack backtrace:
+[ 1034.392069][    C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.2 #14
+[ 1034.392450][    C0] Hardware name: ARM-Versatile Express
+[ 1034.392904][    C0] Backtrace: 
+[ 1034.393577][    C0] [<80de0078>] (dump_backtrace) from [<80de0574>] (show_stack+0x28/0x2c)
+[ 1034.394344][    C0]  r9:60000193 r8:ffffffff r7:00000000 r6:00000080 r5:8101acf4 r4:00000000
+[ 1034.394948][    C0] [<80de054c>] (show_stack) from [<80de7c10>] (dump_stack+0x154/0x1a8)
+[ 1034.395419][    C0]  r5:00000000 r4:81260dfc
+[ 1034.395893][    C0] [<80de7abc>] (dump_stack) from [<80de273c>] (print_usage_bug.part.0+0x1a4/0x200)
+[ 1034.396717][    C0]  r10:812b3e30 r9:00000103 r8:00000001 r7:80e03f04 r6:810038fc r5:8172b700
+[ 1034.397451][    C0]  r4:8120bec0 r3:00000000
+[ 1034.397965][    C0] [<80de2598>] (print_usage_bug.part.0) from [<801ba88c>] (mark_lock.part.0+0xb88/0x11a8)
+[ 1034.398632][    C0]  r9:00000000 r8:812b39bc r7:8120bec0 r6:00000001 r5:8120c448 r4:00000004
+[ 1034.399199][    C0] [<801b9d04>] (mark_lock.part.0) from [<801bbbbc>] (__lock_acquire+0x9c8/0x30e0)
+[ 1034.399881][    C0]  r10:8120c448 r9:00000000 r8:8120bec0 r7:00000416 r6:8120c448 r5:817128f4
+[ 1034.400315][    C0]  r4:00000002
+[ 1034.400792][    C0] [<801bb1f4>] (__lock_acquire) from [<801bed58>] (lock_acquire.part.0+0xc4/0x4b4)
+[ 1034.401447][    C0]  r10:00000000 r9:8f5cc25c r8:81167528 r7:3d659000 r6:60000113 r5:81201bb8
+[ 1034.401864][    C0]  r4:81167528
+[ 1034.402304][    C0] [<801bec94>] (lock_acquire.part.0) from [<801bf1b0>] (lock_acquire+0x68/0x74)
+[ 1034.402956][    C0]  r10:80456284 r9:00000000 r8:00000001 r7:00000000 r6:00000000 r5:00000000
+[ 1034.403425][    C0]  r4:8f5cc25c
+[ 1034.403883][    C0] [<801bf148>] (lock_acquire) from [<80df7ffc>] (_raw_spin_lock+0x4c/0x5c)
+[ 1034.404590][    C0]  r10:812092b0 r9:00000002 r8:8f5b7800 r7:00000001 r6:8f5d2080 r5:8f5cc200
+[ 1034.405065][    C0]  r4:8f5cc24c
+[ 1034.405558][    C0] [<80df7fb0>] (_raw_spin_lock) from [<80456284>] (io_file_data_ref_zero+0x30/0x1a8)
+[ 1034.406056][    C0]  r4:8f5d2080
+[ 1034.406736][    C0] [<80456254>] (io_file_data_ref_zero) from [<807164e4>] (percpu_ref_put_many.constprop.0+0x228/0x250)
+[ 1034.407697][    C0]  r10:812092b0 r9:00000002 r8:81208ed4 r7:00000001 r6:8f5d2080 r5:00000003
+[ 1034.408180][    C0]  r4:00000000
+[ 1034.408691][    C0] [<807162bc>] (percpu_ref_put_many.constprop.0) from [<80716618>] (percpu_ref_switch_to_atomic_rcu+0x10c/0x190)
+[ 1034.409402][    C0]  r7:8f5d2250 r6:8f5d2080 r5:00000000 r4:00000000
+[ 1034.410098][    C0] [<8071650c>] (percpu_ref_switch_to_atomic_rcu) from [<801f3e54>] (rcu_core+0x2b4/0xa74)
+[ 1034.410881][    C0]  r10:81201d60 r9:80e04848 r8:812239d8 r7:00000000 r6:0000000a r5:00000003
+[ 1034.411411][    C0]  r4:8f5d2250
+[ 1034.411843][    C0] [<801f3ba0>] (rcu_core) from [<801f474c>] (rcu_core_si+0x10/0x14)
+[ 1034.412571][    C0]  r10:00000002 r9:81208ed8 r8:00000002 r7:00000003 r6:00000009 r5:812030a4
+[ 1034.413088][    C0]  r4:81200000
+[ 1034.413552][    C0] [<801f473c>] (rcu_core_si) from [<801013c0>] (__do_softirq+0xf0/0x698)
+[ 1034.414205][    C0] [<801012d0>] (__do_softirq) from [<8014c104>] (__irq_exit_rcu+0xb4/0x170)
+[ 1034.414941][    C0]  r10:000003fb r9:81c20400 r8:0000003b r7:812231ec r6:00000000 r5:81170f7c
+[ 1034.415422][    C0]  r4:ffffe000
+[ 1034.415880][    C0] [<8014c050>] (__irq_exit_rcu) from [<8014c5a4>] (irq_exit+0x10/0x30)
+[ 1034.416470][    C0]  r5:81170f7c r4:00000000
+[ 1034.417245][    C0] [<8014c594>] (irq_exit) from [<801d31a4>] (__handle_domain_irq+0xc8/0x12c)
+[ 1034.418248][    C0] [<801d30dc>] (__handle_domain_irq) from [<807bcf60>] (gic_handle_irq+0xc0/0xfc)
+[ 1034.419269][    C0]  r9:8120956c r8:00000010 r7:c0802000 r6:81201e90 r5:0000001b r4:0000001b
+[ 1034.420403][    C0] [<807bcea0>] (gic_handle_irq) from [<80100b30>] (__irq_svc+0x70/0x98)
+[ 1034.421268][    C0] Exception stack(0x81201e90 to 0x81201ed8)
+[ 1034.422966][    C0] 1e80:                                     ffffffff 00000001 8120bec0 00000000
+[ 1034.424252][    C0] 1ea0: 00000000 81200000 00000000 00000000 81208ed8 00000001 81208f10 81201ef4
+[ 1034.425359][    C0] 1ec0: 81201ee0 81201ee0 8010cefc 8010cf00 80000013 ffffffff
+[ 1034.426469][    C0]  r10:81208f10 r9:81200000 r8:81208ed8 r7:81201ec4 r6:ffffffff r5:80000013
+[ 1034.427180][    C0]  r4:8010cf00
+[ 1034.428013][    C0] [<8010ced0>] (arch_cpu_idle) from [<80df7f58>] (default_idle_call+0x4c/0xa0)
+[ 1034.428850][    C0]  r5:81200000 r4:ffffe000
+[ 1034.429509][    C0] [<80df7f0c>] (default_idle_call) from [<80197894>] (do_idle+0x238/0x2e0)
+[ 1034.430413][    C0]  r5:81200000 r4:00000000
+[ 1034.431131][    C0] [<8019765c>] (do_idle) from [<80197d2c>] (cpu_startup_entry+0x20/0x24)
+[ 1034.432147][    C0]  r10:10c5387d r9:8105e364 r8:8105e364 r7:00000001 r6:00000001 r5:8129e5b4
+[ 1034.432845][    C0]  r4:000000d8
+[ 1034.433561][    C0] [<80197d0c>] (cpu_startup_entry) from [<80def414>] (rest_init+0x27c/0x3cc)
+[ 1034.434518][    C0] [<80def198>] (rest_init) from [<81100d04>] (arch_call_rest_init+0x14/0x18)
+[ 1034.435443][    C0]  r7:8105e364 r6:812b1040 r5:00000000 r4:00000000
+[ 1034.436244][    C0] [<81100cf0>] (arch_call_rest_init) from [<811013a0>] (start_kernel+0x634/0x718)
+[ 1034.437073][    C0] [<81100d6c>] (start_kernel) from [<00000000>] (0x0)