pkg/report: merge rcu stalls and soft lockups

Both these active stalls sometimes happen due to the same underlying issue.
Merge them together.

Update #1575

87 files changed, 87 insertions, 4 deletions

diff --git a/pkg/report/testdata/linux/report/145 b/pkg/report/testdata/linux/report/145
index 0f57b8077..7ac8473f3 100644
--- a/pkg/report/testdata/linux/report/145
+++ b/pkg/report/testdata/linux/report/145
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ipv6_rcv
+ALT: stall in ipv6_rcv
 TYPE: HANG
 
 [  323.830017] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/171 b/pkg/report/testdata/linux/report/171
index 411e69f31..3f10dfa88 100644
--- a/pkg/report/testdata/linux/report/171
+++ b/pkg/report/testdata/linux/report/171
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in snd_pcm_oss_write
+ALT: stall in snd_pcm_oss_write
 TYPE: HANG
 
 [  196.114026] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/207 b/pkg/report/testdata/linux/report/207
index 6d6009034..6138a010d 100644
--- a/pkg/report/testdata/linux/report/207
+++ b/pkg/report/testdata/linux/report/207
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in bpf_map_free_deferred
+ALT: stall in bpf_map_free_deferred
 TYPE: HANG
 
 isob2 login: [  709.689951] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/237 b/pkg/report/testdata/linux/report/237
index 6dce8b337..50cfb2b96 100644
--- a/pkg/report/testdata/linux/report/237
+++ b/pkg/report/testdata/linux/report/237
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in mount
+ALT: stall in mount
 TYPE: HANG
 
 INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/263 b/pkg/report/testdata/linux/report/263
index bc2777fa1..e6ff671ff 100644
--- a/pkg/report/testdata/linux/report/263
+++ b/pkg/report/testdata/linux/report/263
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in snd_seq_write
+ALT: stall in snd_seq_write
 TYPE: HANG
 
 [  599.875361] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/264 b/pkg/report/testdata/linux/report/264
index 49454d603..349c7c330 100644
--- a/pkg/report/testdata/linux/report/264
+++ b/pkg/report/testdata/linux/report/264
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in sys_rmdir
+ALT: stall in sys_rmdir
 TYPE: HANG
 
 [  281.646907] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor4:4588]
diff --git a/pkg/report/testdata/linux/report/265 b/pkg/report/testdata/linux/report/265
index 647054a51..0f35525bb 100644
--- a/pkg/report/testdata/linux/report/265
+++ b/pkg/report/testdata/linux/report/265
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in snd_rawmidi_write
+ALT: stall in snd_rawmidi_write
 TYPE: HANG
 
 [  352.504666] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor2:10431]
diff --git a/pkg/report/testdata/linux/report/266 b/pkg/report/testdata/linux/report/266
index b945505ca..7b0c0aa22 100644
--- a/pkg/report/testdata/linux/report/266
+++ b/pkg/report/testdata/linux/report/266
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in sys_rmdir
+ALT: stall in sys_rmdir
 TYPE: HANG
 
 [ 1144.580971] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor0:4569]
diff --git a/pkg/report/testdata/linux/report/267 b/pkg/report/testdata/linux/report/267
index 311be680d..28417fcf5 100644
--- a/pkg/report/testdata/linux/report/267
+++ b/pkg/report/testdata/linux/report/267
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in ipv6_rcv
+ALT: stall in ipv6_rcv
 TYPE: HANG
 
 [ 1290.104807] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor738:4553]
diff --git a/pkg/report/testdata/linux/report/268 b/pkg/report/testdata/linux/report/268
index b7a3628ea..d3d384d14 100644
--- a/pkg/report/testdata/linux/report/268
+++ b/pkg/report/testdata/linux/report/268
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  328.823841] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/269 b/pkg/report/testdata/linux/report/269
index 20e97052d..073ca68bb 100644
--- a/pkg/report/testdata/linux/report/269
+++ b/pkg/report/testdata/linux/report/269
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  351.337674] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/270 b/pkg/report/testdata/linux/report/270
index c8c5aac0f..8f695f451 100644
--- a/pkg/report/testdata/linux/report/270
+++ b/pkg/report/testdata/linux/report/270
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in mousedev_write
+ALT: stall in mousedev_write
 TYPE: HANG
 
 [  489.536147] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/271 b/pkg/report/testdata/linux/report/271
index d8e3803b1..801ce9840 100644
--- a/pkg/report/testdata/linux/report/271
+++ b/pkg/report/testdata/linux/report/271
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in fuse_dev_release
+ALT: stall in fuse_dev_release
 TYPE: HANG
 
 [  629.392020] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/272 b/pkg/report/testdata/linux/report/272
index a6fa10a28..2a58f8a2f 100644
--- a/pkg/report/testdata/linux/report/272
+++ b/pkg/report/testdata/linux/report/272
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in netlink_sendmsg
+ALT: stall in netlink_sendmsg
 TYPE: HANG
 
 [  480.173025] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/273 b/pkg/report/testdata/linux/report/273
index 54a97eab9..f10a106f8 100644
--- a/pkg/report/testdata/linux/report/273
+++ b/pkg/report/testdata/linux/report/273
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  631.121467] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/274 b/pkg/report/testdata/linux/report/274
index 146a2a67d..e783002d1 100644
--- a/pkg/report/testdata/linux/report/274
+++ b/pkg/report/testdata/linux/report/274
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ipv6_rcv
+ALT: stall in ipv6_rcv
 TYPE: HANG
 
 [  842.597024] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/275 b/pkg/report/testdata/linux/report/275
index 61289f53a..433dde00c 100644
--- a/pkg/report/testdata/linux/report/275
+++ b/pkg/report/testdata/linux/report/275
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  401.753130] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/276 b/pkg/report/testdata/linux/report/276
index 13cc768eb..263d20fe2 100644
--- a/pkg/report/testdata/linux/report/276
+++ b/pkg/report/testdata/linux/report/276
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in __cleanup_mnt
+ALT: stall in __cleanup_mnt
 TYPE: HANG
 
 [  396.319024] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/277 b/pkg/report/testdata/linux/report/277
index d16b48ad3..27801596e 100644
--- a/pkg/report/testdata/linux/report/277
+++ b/pkg/report/testdata/linux/report/277
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ext4_file_write_iter
+ALT: stall in ext4_file_write_iter
 TYPE: HANG
 
 [  587.513972] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/278 b/pkg/report/testdata/linux/report/278
index 8fe831227..57f39cc0d 100644
--- a/pkg/report/testdata/linux/report/278
+++ b/pkg/report/testdata/linux/report/278
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in sys_futex
+ALT: stall in sys_futex
 TYPE: HANG
 
 [  246.173515] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/279 b/pkg/report/testdata/linux/report/279
index 8522f554d..cab41872b 100644
--- a/pkg/report/testdata/linux/report/279
+++ b/pkg/report/testdata/linux/report/279
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [ 1057.417927] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/280 b/pkg/report/testdata/linux/report/280
index b574e0ad3..8d57fd251 100644
--- a/pkg/report/testdata/linux/report/280
+++ b/pkg/report/testdata/linux/report/280
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  885.637820] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/281 b/pkg/report/testdata/linux/report/281
index 02758e847..476e6b230 100644
--- a/pkg/report/testdata/linux/report/281
+++ b/pkg/report/testdata/linux/report/281
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  557.780627] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/282 b/pkg/report/testdata/linux/report/282
index 40c080e63..9611ecb6a 100644
--- a/pkg/report/testdata/linux/report/282
+++ b/pkg/report/testdata/linux/report/282
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  618.102956] overlayfs: failed to resolve './file1': -2
diff --git a/pkg/report/testdata/linux/report/283 b/pkg/report/testdata/linux/report/283
index 39b9b5a3e..fc92431e1 100644
--- a/pkg/report/testdata/linux/report/283
+++ b/pkg/report/testdata/linux/report/283
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in snd_pcm_oss_release
+ALT: stall in snd_pcm_oss_release
 TYPE: HANG
 
 [  362.024021] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/284 b/pkg/report/testdata/linux/report/284
index 2f797b951..aa57339b0 100644
--- a/pkg/report/testdata/linux/report/284
+++ b/pkg/report/testdata/linux/report/284
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in llcp_sock_sendmsg
+ALT: stall in llcp_sock_sendmsg
 TYPE: HANG
 
 [ 1098.520844] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/285 b/pkg/report/testdata/linux/report/285
index a21fdaf43..31ea8d025 100644
--- a/pkg/report/testdata/linux/report/285
+++ b/pkg/report/testdata/linux/report/285
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in sctp_generate_heartbeat_event
+ALT: stall in sctp_generate_heartbeat_event
 TYPE: HANG
 
 [  396.651023] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/286 b/pkg/report/testdata/linux/report/286
index 93380f65a..91944749f 100644
--- a/pkg/report/testdata/linux/report/286
+++ b/pkg/report/testdata/linux/report/286
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in sctp_generate_heartbeat_event
+ALT: stall in sctp_generate_heartbeat_event
 TYPE: HANG
 
 [  486.569033] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/287 b/pkg/report/testdata/linux/report/287
index cf0aaa560..e15b8d3e0 100644
--- a/pkg/report/testdata/linux/report/287
+++ b/pkg/report/testdata/linux/report/287
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in br_handle_frame
+ALT: stall in br_handle_frame
 TYPE: HANG
 
 [  268.109997] bridge0: received packet on bridge_slave_0 with own address as source address
diff --git a/pkg/report/testdata/linux/report/288 b/pkg/report/testdata/linux/report/288
index 1238cb51e..8e5a78051 100644
--- a/pkg/report/testdata/linux/report/288
+++ b/pkg/report/testdata/linux/report/288
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 1342.342232] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor0:8009]
diff --git a/pkg/report/testdata/linux/report/289 b/pkg/report/testdata/linux/report/289
index f37f7b087..68da8a85b 100644
--- a/pkg/report/testdata/linux/report/289
+++ b/pkg/report/testdata/linux/report/289
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ext4_filemap_fault
+ALT: stall in ext4_filemap_fault
 TYPE: HANG
 
 [ 2355.201776] INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/290 b/pkg/report/testdata/linux/report/290
index 694a86105..365d9efad 100644
--- a/pkg/report/testdata/linux/report/290
+++ b/pkg/report/testdata/linux/report/290
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ipv6_rcv
+ALT: stall in ipv6_rcv
 TYPE: HANG
 
 [  757.882665] INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/291 b/pkg/report/testdata/linux/report/291
index 865da9943..588fb848c 100644
--- a/pkg/report/testdata/linux/report/291
+++ b/pkg/report/testdata/linux/report/291
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in rmdir
+ALT: stall in rmdir
 TYPE: HANG
 
 [  539.960575] INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/292 b/pkg/report/testdata/linux/report/292
index c372d5e60..0f78325d5 100644
--- a/pkg/report/testdata/linux/report/292
+++ b/pkg/report/testdata/linux/report/292
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  420.341960] INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/293 b/pkg/report/testdata/linux/report/293
index facd8d3a6..019d04cb1 100644
--- a/pkg/report/testdata/linux/report/293
+++ b/pkg/report/testdata/linux/report/293
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in perf_mmap
+ALT: stall in perf_mmap
 TYPE: HANG
 
 [  323.391020] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/294 b/pkg/report/testdata/linux/report/294
index 2739e07f5..770430fbf 100644
--- a/pkg/report/testdata/linux/report/294
+++ b/pkg/report/testdata/linux/report/294
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in lo_ioctl
+ALT: stall in lo_ioctl
 TYPE: HANG
 
 [  480.801028] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/295 b/pkg/report/testdata/linux/report/295
index 0457341f7..3a5de7d43 100644
--- a/pkg/report/testdata/linux/report/295
+++ b/pkg/report/testdata/linux/report/295
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in rtnl_newlink
+ALT: stall in rtnl_newlink
 TYPE: HANG
 
 [  355.572806] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/296 b/pkg/report/testdata/linux/report/296
index 43fe0f653..77d85584a 100644
--- a/pkg/report/testdata/linux/report/296
+++ b/pkg/report/testdata/linux/report/296
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in mount
+ALT: stall in mount
 TYPE: HANG
 
 [  848.443720] NMI watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor694:3996]
diff --git a/pkg/report/testdata/linux/report/297 b/pkg/report/testdata/linux/report/297
index fe32b8915..0e6471dd2 100644
--- a/pkg/report/testdata/linux/report/297
+++ b/pkg/report/testdata/linux/report/297
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  601.962573] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor1:24793]
diff --git a/pkg/report/testdata/linux/report/298 b/pkg/report/testdata/linux/report/298
index 2babaf4dd..89738e557 100644
--- a/pkg/report/testdata/linux/report/298
+++ b/pkg/report/testdata/linux/report/298
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in rtnl_newlink
+ALT: stall in rtnl_newlink
 TYPE: HANG
 
 [  287.048281] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/299 b/pkg/report/testdata/linux/report/299
index 0e13c1486..fc1df9014 100644
--- a/pkg/report/testdata/linux/report/299
+++ b/pkg/report/testdata/linux/report/299
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in sched_ttwu_pending
+ALT: stall in sched_ttwu_pending
 TYPE: HANG
 
 [  575.758025] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/300 b/pkg/report/testdata/linux/report/300
index ebc269652..73b10050c 100644
--- a/pkg/report/testdata/linux/report/300
+++ b/pkg/report/testdata/linux/report/300
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 3481.239960] INFO: rcu_sched detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/318 b/pkg/report/testdata/linux/report/318
index fd9b9a0f0..349ab725f 100644
--- a/pkg/report/testdata/linux/report/318
+++ b/pkg/report/testdata/linux/report/318
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vm_compat_ioctl
+ALT: stall in kvm_vm_compat_ioctl
 TYPE: HANG
 
 [  393.750282] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/350 b/pkg/report/testdata/linux/report/350
index 0600f57e8..19cab373f 100644
--- a/pkg/report/testdata/linux/report/350
+++ b/pkg/report/testdata/linux/report/350
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 1098.601132][    C2] watchdog: BUG: soft lockup - CPU#2 stuck for 136s! [syz-executor4:4888]
diff --git a/pkg/report/testdata/linux/report/368 b/pkg/report/testdata/linux/report/368
index 215148cf0..8651326b3 100644
--- a/pkg/report/testdata/linux/report/368
+++ b/pkg/report/testdata/linux/report/368
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vm_ioctl
+ALT: stall in kvm_vm_ioctl
 TYPE: HANG
 
 [  804.522871] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/369 b/pkg/report/testdata/linux/report/369
index dfc506c2d..1a054c698 100644
--- a/pkg/report/testdata/linux/report/369
+++ b/pkg/report/testdata/linux/report/369
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/373 b/pkg/report/testdata/linux/report/373
index 72b7178c8..de1a10f7f 100644
--- a/pkg/report/testdata/linux/report/373
+++ b/pkg/report/testdata/linux/report/373
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in rtc_timer_do_work
+ALT: stall in rtc_timer_do_work
 TYPE: HANG
 
 [  249.033000] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/378 b/pkg/report/testdata/linux/report/378
index 3ef87c06f..1b0edbaa2 100644
--- a/pkg/report/testdata/linux/report/378
+++ b/pkg/report/testdata/linux/report/378
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in sys_inotify_init
+ALT: stall in sys_inotify_init
 TYPE: HANG
 
 [  990.309025][    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/421 b/pkg/report/testdata/linux/report/421
index 357ce68ea..e6bf45a3d 100644
--- a/pkg/report/testdata/linux/report/421
+++ b/pkg/report/testdata/linux/report/421
@@ -1,6 +1,5 @@
-# This is a bit unusual rcu stall report which we misparse now, see:
-# https://groups.google.com/d/msg/syzkaller-bugs/EtMMaRJPRHY/6B9IK2hmAgAJ
 TITLE: INFO: rcu detected stall in sys_exit_group
+ALT: stall in sys_exit_group
 TYPE: HANG
 
 [  351.648071][    C1] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/462 b/pkg/report/testdata/linux/report/462
index 4c648f955..4dd5128b0 100644
--- a/pkg/report/testdata/linux/report/462
+++ b/pkg/report/testdata/linux/report/462
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ip_set_uadd
+ALT: stall in ip_set_uadd
 TYPE: HANG
 
 [  350.106517][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/463 b/pkg/report/testdata/linux/report/463
index eaf7488d1..3927253ab 100644
--- a/pkg/report/testdata/linux/report/463
+++ b/pkg/report/testdata/linux/report/463
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in ip_set_ad
+ALT: stall in ip_set_ad
 TYPE: HANG
 
 [  160.301453] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/464 b/pkg/report/testdata/linux/report/464
index 2fb5ba84c..a5737a4c3 100644
--- a/pkg/report/testdata/linux/report/464
+++ b/pkg/report/testdata/linux/report/464
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in nf_tables_getgen
+ALT: stall in nf_tables_getgen
 TYPE: HANG
 
 [  419.322115] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/465 b/pkg/report/testdata/linux/report/465
index 165f8cafb..6182c7529 100644
--- a/pkg/report/testdata/linux/report/465
+++ b/pkg/report/testdata/linux/report/465
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in lock_is_held_type
+ALT: stall in lock_is_held_type
 TYPE: HANG
 
 [  241.671097] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/468 b/pkg/report/testdata/linux/report/468
index d6be4a584..9ba69225f 100644
--- a/pkg/report/testdata/linux/report/468
+++ b/pkg/report/testdata/linux/report/468
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [  839.223284][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/483 b/pkg/report/testdata/linux/report/483
index 9e3894a56..c16b747bd 100644
--- a/pkg/report/testdata/linux/report/483
+++ b/pkg/report/testdata/linux/report/483
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_vcpu_ioctl
+ALT: stall in kvm_vcpu_ioctl
 TYPE: HANG
 
 [ 1637.979990][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/487 b/pkg/report/testdata/linux/report/487
index fc881f720..01bed6379 100644
--- a/pkg/report/testdata/linux/report/487
+++ b/pkg/report/testdata/linux/report/487
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/488 b/pkg/report/testdata/linux/report/488
index efcafc753..e2f54890c 100644
--- a/pkg/report/testdata/linux/report/488
+++ b/pkg/report/testdata/linux/report/488
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in garp_join_timer_arm
+ALT: stall in garp_join_timer_arm
 TYPE: HANG
 
 [ 1829.205943] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/489 b/pkg/report/testdata/linux/report/489
index d535afb4c..4241998d2 100644
--- a/pkg/report/testdata/linux/report/489
+++ b/pkg/report/testdata/linux/report/489
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in perf_event_mmap
+ALT: stall in perf_event_mmap
 TYPE: HANG
 
 [  943.341024] INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/490 b/pkg/report/testdata/linux/report/490
index 7c37bbf33..8594251e0 100644
--- a/pkg/report/testdata/linux/report/490
+++ b/pkg/report/testdata/linux/report/490
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in neigh_timer_handler
+ALT: stall in neigh_timer_handler
 TYPE: HANG
 
 [  366.785711] INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/491 b/pkg/report/testdata/linux/report/491
index bb724f590..847df91eb 100644
--- a/pkg/report/testdata/linux/report/491
+++ b/pkg/report/testdata/linux/report/491
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kernfs_fop_open
+ALT: stall in kernfs_fop_open
 TYPE: HANG
 
 [  163.636748][    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/492 b/pkg/report/testdata/linux/report/492
index 336afc940..232f8a353 100644
--- a/pkg/report/testdata/linux/report/492
+++ b/pkg/report/testdata/linux/report/492
@@ -1,5 +1,5 @@
-# TODO: this should be "in hsr_announce".
 TITLE: INFO: rcu detected stall in drm_ioctl
+ALT: stall in drm_ioctl
 TYPE: HANG
 
 [ 3239.542037][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/493 b/pkg/report/testdata/linux/report/493
index f05d3763d..7173c601f 100644
--- a/pkg/report/testdata/linux/report/493
+++ b/pkg/report/testdata/linux/report/493
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kmem_cache_alloc
+ALT: stall in kmem_cache_alloc
 TYPE: HANG
 
 [ 3024.981314] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/494 b/pkg/report/testdata/linux/report/494
index e47b79aec..3ddaa50ad 100644
--- a/pkg/report/testdata/linux/report/494
+++ b/pkg/report/testdata/linux/report/494
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in br_handle_frame
+ALT: stall in br_handle_frame
 TYPE: HANG
 
 [  421.679143] INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/495 b/pkg/report/testdata/linux/report/495
index 2cd97b624..491e85e05 100644
--- a/pkg/report/testdata/linux/report/495
+++ b/pkg/report/testdata/linux/report/495
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in kvm_mux_dev_ioctl
+ALT: stall in kvm_mux_dev_ioctl
 TYPE: HANG
 
 [  785.972629] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/501 b/pkg/report/testdata/linux/report/501
index efbdfb1c6..3e1989f4a 100644
--- a/pkg/report/testdata/linux/report/501
+++ b/pkg/report/testdata/linux/report/501
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in tc_modify_qdisc
+ALT: stall in tc_modify_qdisc
 TYPE: HANG
 
 [  809.100032][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/502 b/pkg/report/testdata/linux/report/502
index 77b985f47..79eaf7cf3 100644
--- a/pkg/report/testdata/linux/report/502
+++ b/pkg/report/testdata/linux/report/502
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  611.778481][    C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
diff --git a/pkg/report/testdata/linux/report/503 b/pkg/report/testdata/linux/report/503
index e073d845f..89744f3e6 100644
--- a/pkg/report/testdata/linux/report/503
+++ b/pkg/report/testdata/linux/report/503
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 1117.938056][    C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.1:2970]
diff --git a/pkg/report/testdata/linux/report/504 b/pkg/report/testdata/linux/report/504
index 74a8c6d96..8dc6a541f 100644
--- a/pkg/report/testdata/linux/report/504
+++ b/pkg/report/testdata/linux/report/504
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  635.060078][    C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor.2:12834]
diff --git a/pkg/report/testdata/linux/report/505 b/pkg/report/testdata/linux/report/505
index 0b0540edf..af0f7fc92 100644
--- a/pkg/report/testdata/linux/report/505
+++ b/pkg/report/testdata/linux/report/505
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 1472.340932][    C1] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.0:8399]
diff --git a/pkg/report/testdata/linux/report/506 b/pkg/report/testdata/linux/report/506
index c111290e5..fe00040d0 100644
--- a/pkg/report/testdata/linux/report/506
+++ b/pkg/report/testdata/linux/report/506
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [ 1270.359469][    C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [kworker/0:13:3571]
diff --git a/pkg/report/testdata/linux/report/521 b/pkg/report/testdata/linux/report/521
index 92811c47b..aea271b3c 100644
--- a/pkg/report/testdata/linux/report/521
+++ b/pkg/report/testdata/linux/report/521
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in mac80211_hwsim_beacon
+ALT: stall in mac80211_hwsim_beacon
 TYPE: HANG
 
 [ 2700.709744][    C0] rcu: INFO: rcu_preempt self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/523 b/pkg/report/testdata/linux/report/523
index 1767f856d..1ead6445e 100644
--- a/pkg/report/testdata/linux/report/523
+++ b/pkg/report/testdata/linux/report/523
@@ -1,5 +1,5 @@
-# TODO: this is not corrupted, it's just a unique rcu stall report without apic_timer_interrupt frame...
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/535 b/pkg/report/testdata/linux/report/535
index 8e25f4ced..c9ce24a4c 100644
--- a/pkg/report/testdata/linux/report/535
+++ b/pkg/report/testdata/linux/report/535
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in ip_list_rcv
+ALT: stall in ip_list_rcv
 TYPE: HANG
 
 [  637.311457][    C0] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [ksoftirqd/0:9]
diff --git a/pkg/report/testdata/linux/report/538 b/pkg/report/testdata/linux/report/538
index 4602dc9f4..5e29ee30d 100644
--- a/pkg/report/testdata/linux/report/538
+++ b/pkg/report/testdata/linux/report/538
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in ieee80211_tasklet_handler
+ALT: stall in ieee80211_tasklet_handler
 TYPE: HANG
 
 [  516.671899][    C1] watchdog: BUG: soft lockup - CPU#1 stuck for 134s! [syz-executor.3:16401]
diff --git a/pkg/report/testdata/linux/report/547 b/pkg/report/testdata/linux/report/547
index 578544199..d6ed7702e 100644
--- a/pkg/report/testdata/linux/report/547
+++ b/pkg/report/testdata/linux/report/547
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in do_tcp_setsockopt
+ALT: stall in do_tcp_setsockopt
 TYPE: HANG
 
 [ 1335.106333][    C1] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/549 b/pkg/report/testdata/linux/report/549
index 9d458490c..40c91b21a 100644
--- a/pkg/report/testdata/linux/report/549
+++ b/pkg/report/testdata/linux/report/549
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in openat2
+ALT: stall in openat2
 TYPE: HANG
 
 rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/57 b/pkg/report/testdata/linux/report/57
index 4459d0e32..6f5b949ef 100644
--- a/pkg/report/testdata/linux/report/57
+++ b/pkg/report/testdata/linux/report/57
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/58 b/pkg/report/testdata/linux/report/58
index 10990fe8a..acd559cc1 100644
--- a/pkg/report/testdata/linux/report/58
+++ b/pkg/report/testdata/linux/report/58
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/588 b/pkg/report/testdata/linux/report/588
index 9635f73d0..aad8e5d95 100644
--- a/pkg/report/testdata/linux/report/588
+++ b/pkg/report/testdata/linux/report/588
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in io_sq_thread
+ALT: stall in io_sq_thread
 TYPE: HANG
 
 [  589.079232] rcu: INFO: rcu_sched self-detected stall on CPU
diff --git a/pkg/report/testdata/linux/report/59 b/pkg/report/testdata/linux/report/59
index 8a56f5c35..419582f13 100644
--- a/pkg/report/testdata/linux/report/59
+++ b/pkg/report/testdata/linux/report/59
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/60 b/pkg/report/testdata/linux/report/60
index 40e108714..06ab2ef7c 100644
--- a/pkg/report/testdata/linux/report/60
+++ b/pkg/report/testdata/linux/report/60
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/61 b/pkg/report/testdata/linux/report/61
index 9d051475b..39892989e 100644
--- a/pkg/report/testdata/linux/report/61
+++ b/pkg/report/testdata/linux/report/61
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/62 b/pkg/report/testdata/linux/report/62
index 7b9bdc75a..06d90269a 100644
--- a/pkg/report/testdata/linux/report/62
+++ b/pkg/report/testdata/linux/report/62
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/63 b/pkg/report/testdata/linux/report/63
index ca03daea5..74953a82c 100644
--- a/pkg/report/testdata/linux/report/63
+++ b/pkg/report/testdata/linux/report/63
@@ -1,4 +1,5 @@
 TITLE: INFO: rcu detected stall in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y
 
diff --git a/pkg/report/testdata/linux/report/65 b/pkg/report/testdata/linux/report/65
index 05e974bf0..b524f8217 100644
--- a/pkg/report/testdata/linux/report/65
+++ b/pkg/report/testdata/linux/report/65
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in smp_call_function
+ALT: stall in smp_call_function
 TYPE: HANG
 
 [  247.938942] watchdog: BUG: soft lockup - CPU#0 stuck for 134s! [kworker/0:2:1400]
diff --git a/pkg/report/testdata/linux/report/67 b/pkg/report/testdata/linux/report/67
index cc39a9761..ba98b296b 100644
--- a/pkg/report/testdata/linux/report/67
+++ b/pkg/report/testdata/linux/report/67
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in snd_pcm_oss_write
+ALT: stall in snd_pcm_oss_write
 TYPE: HANG
 
 [  562.725743] watchdog: BUG: soft lockup - CPU#0 stuck for 135s! [syzkaller670324:3527]
diff --git a/pkg/report/testdata/linux/report/7 b/pkg/report/testdata/linux/report/7
index a7caf3edd..091057924 100644
--- a/pkg/report/testdata/linux/report/7
+++ b/pkg/report/testdata/linux/report/7
@@ -1,4 +1,5 @@
 TITLE: BUG: soft lockup in corrupted
+ALT: stall in corrupted
 TYPE: HANG
 CORRUPTED: Y