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assert "pg->wire_count != NUM" failed in uvm_page.c

Status: upstream: reported on 2025/12/22 15:16
Reported-by: syzbot+db99726653fba0697bd8@syzkaller.appspotmail.com
First crash: 174d, last: 5h39m

Sample crash report:
panic: kernel diagnostic assertion "pg->wire_count != 0" failed: file "/syzkaller/managers/main/kernel/sys/uvm/uvm_page.c", line 1207
Starting stack trace...
panic(ffffffff83482747) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff834c39db,ffffffff834ace33,4b7,ffffffff8341ae6f) at __assert+0x29 sys/kern/subr_prf.c:-1
uvm_pageunwire(fffff6000794b500) at uvm_pageunwire+0x17d sys/uvm/uvm_page.c:1206
uvm_fault_unwire_locked(fffff6006c9fb2f8,daf26214000,daf26613000) at uvm_fault_unwire_locked+0x33a sys/uvm/uvm_fault.c:1790
uvm_unmap_kill_entry_withlock(fffff6006c9fb2f8,fffff6006cc542d0,0) at uvm_unmap_kill_entry_withlock+0x81 sys/uvm/uvm_map.c:1866
uvm_map_teardown(fffff6006c9fb2f8) at uvm_map_teardown+0x117 uvm_map_addr_RBT_LEFT sys/uvm/uvm_map.h:-1 [inline]
uvm_map_teardown(fffff6006c9fb2f8) at uvm_map_teardown+0x117 sys/uvm/uvm_map.c:2497
exit1(ffff80002a767a00,0,0,1) at exit1+0x6e6 sys/kern/kern_exit.c:259
sys_exit(ffff80002a767a00,ffff80002a7a5b50,ffff80002a7a5aa0) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a7a5b50) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7a5b50) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7d04a788e190, count: 247
End of stack trace.

Crashes (9096):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/06/14 20:57 openbsd 009b3423c562 4f06757f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/14 06:38 openbsd 46410a2bd49b 4f06757f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/13 07:10 openbsd b5f1a9c5e77f 4f06757f .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/12 11:47 openbsd 59d95d307a04 8f6cdf3b .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/10 03:46 openbsd 65c91b083cf7 34dab4be .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/09 11:41 openbsd d89bad393cda c36c07f6 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/09 08:12 openbsd 6f935c329363 656e94c6 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/08 13:26 openbsd 1175e773e1a3 cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/07 19:48 openbsd 55e221da9e96 cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/07 04:12 openbsd 03010b9869bc cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/07 03:07 openbsd 03010b9869bc cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/06 00:29 openbsd ce89dc54e9c4 cc095639 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/05 05:43 openbsd 0863b781075b 197909be .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/02 13:30 openbsd d620432c9d9a cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/01 12:44 openbsd bddfd4c1ae9e cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/06/01 05:21 openbsd ca362689551c cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/28 08:24 openbsd 3079a4a0a067 cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/27 22:37 openbsd ed6146792872 cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/27 15:59 openbsd ed6146792872 cb4e87ff .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/26 16:16 openbsd bd7f610059c9 2b0043b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/26 11:25 openbsd bd7f610059c9 2b0043b4 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/26 01:20 openbsd 61b7e18e5713 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/25 20:54 openbsd 61b7e18e5713 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/25 06:02 openbsd 3ca1fbf96c86 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/24 22:09 openbsd 6adc68a286a5 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/24 03:06 openbsd 19a448b47c50 c69befb3 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/21 16:42 openbsd 19a7e1efad25 747d777d .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/20 13:23 openbsd 4cd34baf9f06 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/12 21:12 openbsd 5e6d4834f229 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/12 11:25 openbsd 369ac04692fe 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/10 13:24 openbsd 3013aa3344af 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/10 04:03 openbsd 33e6d7cf8045 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/05/01 05:52 openbsd d15801fa3705 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/30 23:45 openbsd 2117c4c4e299 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/29 07:53 openbsd 7697f4315e16 340bcdf0 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/25 20:29 openbsd 6c5f0280b621 9c2d0995 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/25 03:06 openbsd 2f70c1a437bc 9c2d0995 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/19 17:29 openbsd 2fc67ad6b988 1a086e7c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/18 01:02 openbsd e5e15d037d1c 1a086e7c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/16 19:33 openbsd 203548908adb 1a086e7c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/15 08:58 openbsd 54c4adda4f87 1a086e7c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/15 06:53 openbsd 54c4adda4f87 1a086e7c .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/12 11:42 openbsd 6018ae1d0153 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/11 06:24 openbsd 9bac450dd51b 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/10 14:48 openbsd 7bdd0d20c161 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/10 06:22 openbsd 7bdd0d20c161 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/09 20:12 openbsd f951d642cc52 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/06 22:39 openbsd da10deba81bf 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-setuid assert "pg->wire_count != NUM" failed in uvm_page.c
2026/04/04 04:25 openbsd a0d451d3ebb4 4b3d9a38 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-multicore assert "pg->wire_count != NUM" failed in uvm_page.c
2025/12/22 15:15 openbsd 7a245af8e4c1 607f1549 .config console log report [disk image] [bsd.gdb] [kernel image] ci-openbsd-main assert "pg->wire_count != NUM" failed in uvm_page.c
* Struck through repros no longer work on HEAD.