On 15.12.2020. 17:07, jungle Boogie wrote:
> Hi All,
>
> On my i386 Toshiba netbook machine, I am getting a kernel panic with
> the latest i386 snapshot.
>
> I hope this information helps someone with the issue.
>
>> show panic
> kernel diagnostic assertion "_kernel_lock_held()" failed:
> "/usr/src/sys/uvm/uvm_km.c", line 246
>
>> bt
> db_enter(d0bc6fab,d0c2da31,d0c3a6bb,d0e36b7c,d0e36b7c) at db_enter+0x4
> panic(d0bc6fab, d0c2da31, d0c3a6bb, d0c51f06, f6) at panic+0xd3
> _assert(d0c2da31,d0c51f06,f6,d0c3a6bb,d0e71330) at _assert+0x19
> uvm_km_pgremove(d0e578ec,2552c000,2553000) at uvm_km_pgremove+0x119
> uvm_umap_kill_entry(d0e36b7c,d0e71330) at uvm_unmap_kill_entry+0x92
> uvm_unmap(d0e36b7c,f552c000,f5530000) at uvm_unmap+0x53
> uvm_km_free(d0e36b7c,f552c000,4000,4000) at uvm_km_free+0x25
> cpu_ucode_setup(f092c000,f0800000,efff9000,8d565328,1107000) at
> cpu_ucode_setup+0xeb
> cpu_startup(8d565328,1107000,1116000,110a000,0) at cpu_startup+0x14a
> main(0,0,0,0) at main+0x6b
>
> I've had no panics on amd64.
>
> Thanks!
>
Hi,
i can confirm this panic on i386 on Dell R620
OpenBSD 6.8-current (GENERIC.MP) #561: Tue Dec 15 03:03:30 MST 2020
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP
real mem = 3441889280 (3282MB)
avail mem = 3362799616 (3207MB)
panic: kernel diagnostic assertion "_kernel_lock_held()" failed: file
"/usr/src$
sys/uvm/uvm_km.c", line 246
Stopped at db_enter+0x4: popl %ebp
TID PID UID PRFLAGS PFLAGS CPU COMMAND
db_enter(d0e4901c,d1109e68,d0e48600,d0e2f5e0,d0e2f5e0) at db_enter+0x4
panic(d0bc86cd,d0c2d366,d0c3a01b,d0c508c6,f6) at panic+0xd3
__assert(d0c2d366,d0c508c6,f6,d0c3a01b,d0e48600) at __assert+0x19
uvm_km_pgremove(d0e2edbc,2552c000,25530000) at uvm_km_pgremove+0x119
uvm_unmap_kill_entry(d0e2f5e0,d0e48600) at uvm_unmap_kill_entry+0x92
uvm_unmap_remove(d0e2f5e0,f552c000,f5530000,d1109f10,0,1) at
uvm_unmap_remove+0x1cb
uvm_unmap(d0e2f5e0,f552c000,f5530000) at uvm_unmap+0x53
uvm_km_free(d0e2f5e0,f552c000,4000,4000) at uvm_km_free+0x25
cpu_ucode_setup(f092c000,f0800000,efff9000,68cac0bc,1107000) at
cpu_ucode_setup+0xeb
cpu_startup(68cac0bc,1107000,1116000,110a000,0) at cpu_startup+0x14a
main(0,0,0,0,0) at main+0x6b
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}>
ddb{0}> show panic
kernel diagnostic assertion "_kernel_lock_held()" failed: file
"/usr/src/sys/uvm/uvm_km.c", line 246
ddb{0}> trace
db_enter(d0e4901c,d1109e68,d0e48600,d0e2f5e0,d0e2f5e0) at db_enter+0x4
panic(d0bc86cd,d0c2d366,d0c3a01b,d0c508c6,f6) at panic+0xd3
__assert(d0c2d366,d0c508c6,f6,d0c3a01b,d0e48600) at __assert+0x19
uvm_km_pgremove(d0e2edbc,2552c000,25530000) at uvm_km_pgremove+0x119
uvm_unmap_kill_entry(d0e2f5e0,d0e48600) at uvm_unmap_kill_entry+0x92
uvm_unmap_remove(d0e2f5e0,f552c000,f5530000,d1109f10,0,1) at
uvm_unmap_remove+0x1cb
uvm_unmap(d0e2f5e0,f552c000,f5530000) at uvm_unmap+0x53
uvm_km_free(d0e2f5e0,f552c000,4000,4000) at uvm_km_free+0x25
cpu_ucode_setup(f092c000,f0800000,efff9000,68cac0bc,1107000) at
cpu_ucode_setup+0xeb
cpu_startup(68cac0bc,1107000,1116000,110a000,0) at cpu_startup+0x14a
main(0,0,0,0,0) at main+0x6b
ddb{0}>
ddb{0}> show reg
ds 0x10
es 0x10
fs 0x20
gs 0
edi 0xd0bc86cd acx100_txpower_maxim+0xc67c
esi 0x100
ebp 0xd1109e40 __kernel_bss_end+0x1c8e40
ebx 0xd1109e68 __kernel_bss_end+0x1c8e68
edx 0x2fd
ecx 0
eax 0x1
eip 0xd05c05b4 db_enter+0x4
cs 0x8
eflags 0x2
esp 0xd1109e40 __kernel_bss_end+0x1c8e40
ss 0x10
db_enter+0x4: popl %ebp
ddb{0}>
