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fatal error: unexpected signal during runtime execution (3)

Status: fixed on 2023/03/31 20:51
Fix commit: 96aa115516c8 systrap: simplify interrupt handling in syshandler
First crash: 608d, last: 606d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
gvisor fatal error: unexpected signal during runtime execution syz 272 1394d 2083d 14/26 fixed on 2021/04/10 05:37
gvisor fatal error: unexpected signal during runtime execution (2) 1 1188d 1181d 0/26 auto-closed as invalid on 2021/11/23 20:00
gvisor fatal error: unexpected signal during runtime execution (4) C 811 501d 495d 0/26 moderation: reported C repro on 2023/07/19 20:03

Sample crash report:
fatal error: unexpected signal during runtime execution
D0331 14:54:00.880106  968535 task_signals.go:470] [   6:  20] Notified of signal 23
D0331 14:54:00.880142  968535 task_exit.go:204] [ 27769: 27774] Transitioning from exit state TaskExitInitiated to TaskExitZombie
D0331 14:54:00.880191  968535 task_exit.go:204] [ 27769: 27774] Transitioning from exit state TaskExitZombie to TaskExitDead
D0331 14:54:00.880215  968535 task_signals.go:443] [  29:  29] Discarding ignored signal 17
D0331 14:54:00.880185  968535 task_signals.go:220] [   6:  20] Signal 23: delivering to handler
D0331 14:54:00.881092  968535 task_exit.go:204] [ 27769: 27769] Transitioning from exit state TaskExitZombie to TaskExitDead
D0331 14:54:00.883022  968535 usertrap_amd64.go:212] [ 27772: 27772] Found the pattern at ip 55722121e51a:sysno 56
D0331 14:54:00.883086  968535 usertrap_amd64.go:122] [ 27772: 27772] Allocate a new trap: 0xc002437d40 41
D0331 14:54:00.883108  968535 usertrap_amd64.go:225] [ 27772: 27772] Apply the binary patch addr 55722121e51a trap addr 69cd0 ([184 56 0 0 0 15 5] -> [255 36 37 208 156 6 0])
D0331 14:54:00.884116  968535 task_signals.go:470] [   6:  21] Notified of signal 23
D0331 14:54:00.884178  968535 task_signals.go:220] [   6:  21] Signal 23: delivering to handler
D0331 14:54:00.884885  968535 client.go:400] send [channel 0xc00025e1b0] WalkReq{DirFD: 1, Path: [, dev]}
D0331 14:54:00.885075  968535 client.go:400] recv [channel 0xc00025e1b0] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13639659, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 3, Atime: 2023-03-31 14:39:19.175275936 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2023-03-31 14:39:22.767272484 +0000 UTC, Mtime: 2023-03-31 14:39:22.767272484 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0331 14:54:00.886706  968535 client.go:400] send [channel 0xc00025e1b0] WalkReq{DirFD: 1, Path: [, dev]}
D0331 14:54:00.886800  968535 client.go:400] recv [channel 0xc00025e1b0] WalkStatResp{Stats: [Statx{Mask: 0x7ff, Mode: S_IFDIR|0o777, UID: 0, GID: 0, Ino: 13639659, DevMajor: 8, DevMinor: 16, Size: 4096, Blocks: 8, Blksize: 4096, Nlink: 3, Atime: 2023-03-31 14:39:19.175275936 +0000 UTC, Btime: 1970-01-01 00:00:00 +0000 UTC, Ctime: 2023-03-31 14:39:22.767272484 +0000 UTC, Mtime: 2023-03-31 14:39:22.767272484 +0000 UTC, Attributes: 0, AttributesMask: 0, RdevMajor: 0, RdevMinor: 0}]}
D0331 14:54:00.887302  968535 usertrap_amd64.go:212] [ 27772: 27775] Found the pattern at ip 5572211cf27d:sysno 257
D0331 14:54:00.887333  968535 usertrap_amd64.go:122] [ 27772: 27775] Allocate a new trap: 0xc002437d40 42
D0331 14:54:00.887347  968535 usertrap_amd64.go:225] [ 27772: 27775] Apply the binary patch addr 5572211cf27d trap addr 69d20 ([184 1 1 0 0 15 5] -> [255 36 37 32 157 6 0])
[signal SIGSEGV: segmentation violation code=0x80 addr=0x0 pc=0x44c54c]

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/03/31 14:54 gvisor f540010d1ce4 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/30 16:23 gvisor a08ec09cc8f9 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/30 08:16 gvisor a08ec09cc8f9 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/29 22:33 gvisor a08ec09cc8f9 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/29 21:32 gvisor a08ec09cc8f9 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/29 17:29 gvisor a08ec09cc8f9 f325deb0 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/29 10:34 gvisor 6890e539c700 fc067f05 .config console log report info ci-gvisor-systrap-1-cover fatal error: unexpected signal during runtime execution
2023/03/29 10:13 gvisor 6890e539c700 fc067f05 console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
2023/03/28 20:01 gvisor 05f88d6490de 7df4f03f console log report info ci-gvisor-systrap-1 fatal error: unexpected signal during runtime execution
* Struck through repros no longer work on HEAD.