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pool: free list modified: rttmr

Status: upstream: reported on 2024/03/22 00:05
Reported-by: syzbot+0160e931eeddc4d24fcd@syzkaller.appspotmail.com
First crash: 671d, last: 3d00h

Sample crash report:
panic: pool_p_free: rttmr free list modified: page 0xfffffd807d1d1000; item addr 0xfffffd807d1d1e68; offset 0x10=0x83a04ae0
Starting stack trace...
panic(ffffffff833a7ca8) at panic+0x1d0 sys/kern/subr_prf.c:229
pool_p_free(ffffffff839f5228,fffffd807d1d1f90) at pool_p_free+0x2d1 sys/kern/subr_pool.c:986
pool_gc_pages(0) at pool_gc_pages+0x357 sys/kern/subr_pool.c:1587
taskq_thread(ffffffff83891300) at taskq_thread+0x157 sys/kern/kern_task.c:446
end trace frame: 0x0, count: 253
End of stack trace.

Crashes (148):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/19 22:14 openbsd 665aeba05e03 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2026/01/18 15:00 openbsd 4409e1965d65 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2026/01/11 15:18 openbsd 294bdc40ca4d 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2026/01/11 01:46 openbsd 7ae91379da7d 56f88057 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2026/01/09 08:06 openbsd 0f50c032e950 c1f5c7d0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/12/29 20:15 openbsd 4420759a09aa 9831da75 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/12/21 16:51 openbsd 83a64bde9847 e14dbeb9 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/12/14 01:00 openbsd 6c2671e4e6d0 a066d2bc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/12/02 13:23 openbsd 2f5495769435 d4611817 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/12/01 00:57 openbsd 6bf0f93af4a8 01c07bfe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/11/30 08:21 openbsd 0086034dedf2 01c07bfe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/11/29 02:10 openbsd f9d861d10df2 01c07bfe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/11/13 06:37 openbsd b192115449a5 07e030de .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/11/12 13:22 openbsd 30ee307006ea 07e030de .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/11/09 13:53 openbsd e187005a6767 4e1406b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/28 19:47 openbsd 46d840b2b363 fd2207e7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/28 08:34 openbsd 0d28fdf4a95c fd2207e7 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/24 12:05 openbsd f7635e2c043a c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/23 21:18 openbsd 6cdaebff9937 c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/22 18:39 openbsd 3585a961d9d9 c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/22 17:08 openbsd 3585a961d9d9 c0460fcd .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/22 02:18 openbsd cf10c014bcdf 252fbbad .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/18 23:55 openbsd fbb138a81af3 1c8c8cd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/18 15:18 openbsd 772661234b1c 1c8c8cd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/18 14:15 openbsd 772661234b1c 1c8c8cd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/18 13:12 openbsd 772661234b1c 1c8c8cd8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/14 19:33 openbsd 0103d4dff6b6 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/14 00:58 openbsd 0ee618c489a8 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/13 18:19 openbsd 13656af3a292 b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/13 14:09 openbsd 105f350ce01a b6605ba8 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/10 13:48 openbsd 2d7977329ed5 ff1712fe .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/10/09 18:19 openbsd d147d1032c49 7e2882b3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/05 08:01 openbsd 28c2bc42cf18 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/03 10:05 openbsd 7cf39aff0fc8 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/01 19:50 openbsd f5e5829750f6 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/10/01 05:09 openbsd ae814b404f5c 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/28 05:43 openbsd 8940f8ec2a35 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/27 08:03 openbsd 0383cd21a234 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/26 21:43 openbsd 0383cd21a234 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/26 09:13 openbsd 9ba28ece4fa3 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/24 06:12 openbsd a61ae7856381 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/23 06:50 openbsd 08b90dfd30eb 770ff59f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/20 16:53 openbsd 855190e675b0 67c37560 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/20 13:23 openbsd 855190e675b0 67c37560 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/18 07:56 openbsd 6d22a4a7112d e2beed91 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/17 08:35 openbsd 058f6298dc86 e2beed91 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/07 22:34 openbsd 789907b0ff32 d291dd2d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2025/09/06 01:25 openbsd d33addc4bead d291dd2d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/03 09:22 openbsd c6733e0d0e2e 96a211bc .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
2025/09/01 01:47 openbsd d417098b3164 807a3b61 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main pool: free list modified: rttmr
2024/03/22 00:04 openbsd 173c810f1a3f 6ee49f2e .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore pool: free list modified: rttmr
* Struck through repros no longer work on HEAD.