From: Kirill Miazine <km@krot.org>
Subject: panic -- failed assertions
To: tech@openbsd.org
Date: Sat, 28 Dec 2024 22:15:49 +0100

panic of a rather fresh amd64 snapshot, probably 3-4 days old



text below is OCR-ed with a phone, proofread by me:

panic(ffffffff8245eb59) at panic+0xc2
__assert(ffffffff82411a0a,ffffffff82438926,1c5,ffffffff823eb04f) at 
__assert+0x29
amap_free(fffffd80506ac218) at amap_free+0x158
uvm_unmap_detach(ffff800032399418,0) at uum_unmap_detach+0xc3
sys_munmap(ffff8000ffff0338, ffff800032399530,ffff8000323994a0) at 
sys_munmap+0x186
syscall(ffff800032399530) at syscall+0x620
Xsyscall() at Xsysca11+0x128
end of kernel
end trace frame: 0x7108d33299c0, count: 231
End of stack trace.
WARNING: SPL NOT LOWERED ON SYSCALL 72 8 EXIT 0 4
Stopped at savectx+0xae: movl $0,%gs:0x680
TID PID UID PRFLAGS PFLAGS CPU COMMAND
462835 55586 1000 0x100033 0 3 ping
495939 25031 1000 0x2200003 2 python3.12
*190552 6630 1001 0x3 0x4000000 0 syncthing
374420 2561 0x14000 0x200 1 softnet0
savectx() at savectx+0xae
end of kernel
end trace frame: 0xZcb766910, count: 14
https://www.openbsd.org/ddb.html describes the minimum info required in 
bug reports.
Insufficient info makes it difficult to find and fix bugs.
ddb{0} > show panic
cpu0: kernel diagnostic assertion "!rw_write_held(amap->am_lock)" 
failed: file /usr/src/sys/uum/uum_amap.c", line 453
*срu3: kernel diagnostic assertion "off == trunc_page(off)" failed: file 
"/usr/src/sys/uvm/uvm_page.c", line 888