pkg/report: add few tests where we mis-detect title/guilty file

2 files changed, 151 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/guilty/26 b/pkg/report/testdata/linux/guilty/26
new file mode 100644
index 000000000..5301d3e66
--- /dev/null
+++ b/pkg/report/testdata/linux/guilty/26
@@ -0,0 +1,94 @@
+# TODO: this must be attributed to net/xfrm/xfrm_policy.c.
+FILE: kernel/time/tick-sched.c
+
+Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
+INFO: rcu_sched detected stalls on CPUs/tasks:
+        (detected by 0, t=125007 jiffies, g=66299, c=66298, q=40)
+All QSes seen, last rcu_sched kthread activity 125014 (4294991138-4294866124), jiffies_till_next_fqs=3, root ->qsmask 0x0
+syz-executor5   R  running task    22056 22277   3688 0x00000008
+Call Trace:
+ <IRQ>
+ sched_show_task+0x4a3/0x5e0 kernel/sched/core.c:5198
+ print_other_cpu_stall+0x996/0x1090 kernel/rcu/tree.c:1564
+ check_cpu_stall.isra.61+0x6e6/0x15b0 kernel/rcu/tree.c:1682
+ __rcu_pending kernel/rcu/tree.c:3440 [inline]
+ rcu_pending kernel/rcu/tree.c:3502 [inline]
+ rcu_check_callbacks+0x256/0xd00 kernel/rcu/tree.c:2842
+ update_process_times+0x30/0x60 kernel/time/timer.c:1630
+ tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:162
+ tick_sched_timer+0x42/0x120 kernel/time/tick-sched.c:1166
+ __run_hrtimer kernel/time/hrtimer.c:1211 [inline]
+ __hrtimer_run_queues+0x358/0xe20 kernel/time/hrtimer.c:1275
+ hrtimer_interrupt+0x1c2/0x5e0 kernel/time/hrtimer.c:1309
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
+ smp_apic_timer_interrupt+0x14a/0x700 arch/x86/kernel/apic/apic.c:1050
+ apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:904
+RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50
+RSP: 0018:ffff8801db206738 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff11
+RAX: ffffed003a2965e3 RBX: ffff8801d14b2e40 RCX: ffffffff84c25899
+RDX: 0000000000000100 RSI: ffff8801c5f47f29 RDI: 00000000000079c8
+RBP: ffff8801db2067c8 R08: ffffed0038bea003 R09: ffffed0038bea003
+R10: 000000000000000b R11: ffffed0038bea002 R12: ffff8801c5f40580
+R13: ffff8801db206aa0 R14: 00000000000079d0 R15: dffffc0000000000
+ __xfrm_decode_session+0x68/0x110 net/xfrm/xfrm_policy.c:2358
+ __xfrm_policy_check+0x18c/0x2350 net/xfrm/xfrm_policy.c:2393
+ __xfrm_policy_check2 include/net/xfrm.h:1170 [inline]
+ xfrm_policy_check include/net/xfrm.h:1175 [inline]
+ xfrm6_policy_check include/net/xfrm.h:1185 [inline]
+ rawv6_rcv+0x8f6/0x1200 net/ipv6/raw.c:424
+ ipv6_raw_deliver net/ipv6/raw.c:224 [inline]
+ raw6_local_deliver+0x819/0xa80 net/ipv6/raw.c:240
+ ip6_input_finish+0x3c7/0x17a0 net/ipv6/ip6_input.c:246
+ NF_HOOK include/linux/netfilter.h:250 [inline]
+ ip6_input+0xe9/0x560 net/ipv6/ip6_input.c:327
+ dst_input include/net/dst.h:449 [inline]
+ ip6_rcv_finish+0x1a9/0x7a0 net/ipv6/ip6_input.c:71
+ NF_HOOK include/linux/netfilter.h:250 [inline]
+ ipv6_rcv+0xf37/0x1fa0 net/ipv6/ip6_input.c:208
+ __netif_receive_skb_core+0x1a41/0x3460 net/core/dev.c:4499
+ __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4564
+ process_backlog+0x203/0x740 net/core/dev.c:5244
+ napi_poll net/core/dev.c:5642 [inline]
+ net_rx_action+0x792/0x1910 net/core/dev.c:5708
+ __do_softirq+0x2d7/0xb85 kernel/softirq.c:285
+ do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1115
+ </IRQ>
+ do_softirq.part.21+0x14d/0x190 kernel/softirq.c:329
+ do_softirq kernel/softirq.c:177 [inline]
+ __local_bh_enable_ip+0x1ee/0x230 kernel/softirq.c:182
+ local_bh_enable include/linux/bottom_half.h:32 [inline]
+ rcu_read_unlock_bh include/linux/rcupdate.h:727 [inline]
+ ip6_finish_output2+0xba0/0x23a0 net/ipv6/ip6_output.c:121
+ ip6_fragment+0x25f2/0x3470 net/ipv6/ip6_output.c:739
+ ip6_finish_output+0x6bb/0xaf0 net/ipv6/ip6_output.c:152
+ NF_HOOK_COND include/linux/netfilter.h:239 [inline]
+ ip6_output+0x1eb/0x840 net/ipv6/ip6_output.c:171
+ dst_output include/net/dst.h:443 [inline]
+ ip6_local_out+0x95/0x160 net/ipv6/output_core.c:176
+ ip6_send_skb+0xa1/0x330 net/ipv6/ip6_output.c:1674
+ ip6_push_pending_frames+0xb3/0xe0 net/ipv6/ip6_output.c:1694
+ rawv6_push_pending_frames net/ipv6/raw.c:616 [inline]
+ rawv6_sendmsg+0x2ee9/0x3e70 net/ipv6/raw.c:935
+ inet_sendmsg+0x11f/0x5e0 net/ipv4/af_inet.c:764
+ sock_sendmsg_nosec net/socket.c:628 [inline]
+ sock_sendmsg+0xca/0x110 net/socket.c:638
+ SYSC_sendto+0x361/0x5c0 net/socket.c:1719
+ SyS_sendto+0x40/0x50 net/socket.c:1687
+ entry_SYSCALL_64_fastpath+0x23/0x9a
+RIP: 0033:0x452ac9
+RSP: 002b:00007f042a550c58 EFLAGS: 00000212 ORIG_RAX: 000000000000002c
+RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000452ac9
+RDX: 0000000000000000 RSI: 0000000020aa7000 RDI: 0000000000000013
+RBP: 00000000000004b6 R08: 00000000201e0000 R09: 000000000000001c
+R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f51b0
+R13: 00000000ffffffff R14: 00007f042a5516d4 R15: 0000000000000000
+rcu_sched kthread starved for 126236 jiffies! g66299 c66298 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0
+rcu_sched       R  running task    23456     8      2 0x80000000
+Call Trace:
+ context_switch kernel/sched/core.c:2799 [inline]
+ __schedule+0x8eb/0x2060 kernel/sched/core.c:3375
+ schedule+0xf5/0x430 kernel/sched/core.c:3434
+ schedule_timeout+0x118/0x230 kernel/time/timer.c:1795
+ rcu_gp_kthread+0x9e5/0x1930 kernel/rcu/tree.c:2314
+ kthread+0x33c/0x400 kernel/kthread.c:238
+ ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:515
diff --git a/pkg/report/testdata/linux/guilty/27 b/pkg/report/testdata/linux/guilty/27
new file mode 100644
index 000000000..63d999ce3
--- /dev/null
+++ b/pkg/report/testdata/linux/guilty/27
@@ -0,0 +1,57 @@
+# TODO: this must be attributed to sound/core/oss/mulaw.c.
+FILE: kernel/time/tick-sched.c
+
+INFO: rcu_sched detected stalls on CPUs/tasks:
+        (detected by 0, t=125002 jiffies, g=15654, c=15653, q=133)
+All QSes seen, last rcu_sched kthread activity 125002 (4294863411-4294738409), jiffies_till_next_fqs=3, root ->qsmask 0x0
+syz-executor1   R  running task    24936 11943   3739 0x0000000c
+Call Trace:
+ <IRQ>
+ sched_show_task+0x4a3/0x5e0 kernel/sched/core.c:5198
+ print_other_cpu_stall+0x996/0x1090 kernel/rcu/tree.c:1564
+ check_cpu_stall.isra.61+0x6e6/0x15b0 kernel/rcu/tree.c:1682
+ __rcu_pending kernel/rcu/tree.c:3440 [inline]
+ rcu_pending kernel/rcu/tree.c:3502 [inline]
+ rcu_check_callbacks+0x256/0xd00 kernel/rcu/tree.c:2842
+ update_process_times+0x30/0x60 kernel/time/timer.c:1628
+ tick_sched_handle+0x85/0x160 kernel/time/tick-sched.c:162
+ tick_sched_timer+0x42/0x120 kernel/time/tick-sched.c:1194
+ __run_hrtimer kernel/time/hrtimer.c:1211 [inline]
+ __hrtimer_run_queues+0x358/0xe20 kernel/time/hrtimer.c:1275
+ hrtimer_interrupt+0x1c2/0x5e0 kernel/time/hrtimer.c:1309
+ local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline]
+ smp_apic_timer_interrupt+0x14a/0x700 arch/x86/kernel/apic/apic.c:1050
+ apic_timer_interrupt+0xa9/0xb0 arch/x86/entry/entry_64.S:920
+ </IRQ>
+RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:30 [inline]
+RIP: 0010:memory_is_poisoned_n mm/kasan/kasan.c:210 [inline]
+RIP: 0010:memory_is_poisoned mm/kasan/kasan.c:241 [inline]
+RIP: 0010:check_memory_region_inline mm/kasan/kasan.c:257 [inline]
+RIP: 0010:check_memory_region+0x38/0x190 mm/kasan/kasan.c:267
+RSP: 0000:ffff8801bd2ff868 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff11
+RAX: ffff7fffffffffff RBX: ffffc9000160020b RCX: ffffffff841fceaf
+RDX: 0000000000000001 RSI: 0000000000000002 RDI: ffffc9000160020a
+RBP: ffff8801bd2ff878 R08: ffffc9000160020a R09: dffffc0000000000
+R10: 0000000000000001 R11: ffffed0037a5ff2e R12: ffffc9000160020a
+R13: ffff8801bd2ff970 R14: dffffc0000000000 R15: ffffc9000160020a
+ memcpy+0x37/0x50 mm/kasan/kasan.c:303
+ memcpy include/linux/string.h:344 [inline]
+ cvt_s16_to_native sound/core/oss/mulaw.c:164 [inline]
+ mulaw_decode+0x52f/0x770 sound/core/oss/mulaw.c:195
+ mulaw_transfer+0x222/0x270 sound/core/oss/mulaw.c:273
+ snd_pcm_plug_write_transfer+0x22d/0x420 sound/core/oss/pcm_plugin.c:611
+ snd_pcm_oss_write2+0x260/0x420 sound/core/oss/pcm_oss.c:1311
+ snd_pcm_oss_write1 sound/core/oss/pcm_oss.c:1372 [inline]
+ snd_pcm_oss_write+0x5fe/0x830 sound/core/oss/pcm_oss.c:2646
+ __vfs_write+0xef/0x970 fs/read_write.c:480
+ vfs_write+0x189/0x510 fs/read_write.c:544
+ SYSC_write fs/read_write.c:589 [inline]
+ SyS_write+0xef/0x220 fs/read_write.c:581
+ entry_SYSCALL_64_fastpath+0x23/0x9a
+RIP: 0033:0x452ac9
+RSP: 002b:00007fa354a13c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001
+RAX: ffffffffffffffda RBX: cccccccccccccccd RCX: 0000000000452ac9
+RDX: 00000000fffffeb2 RSI: 0000000020083fc6 RDI: 0000000000000014
+RBP: 00000000000005b5 R08: 0000000000000000 R09: 0000000000000000
+R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f6998
+R13: 00000000ffffffff R14: 00007fa354a146d4 R15: 0000000000000000