Kernel Panic

[karthik holla]

Hi,
I am using
DragonFly localhost.localdomain 6.5-DEVELOPMENT DragonFly
v6.5.0.1157.gb46e2-DEVELOPMENT

Thanks
Karthik

On Sat, Dec 13, 2025 at 9:48 PM Michael Neumann <mneumann at ntecs.de> wrote:

> Which version are you running?
>
> Am 20. Dezember 2025 15:19:13 MEZ schrieb karthik holla <
> karthikholla87 at gmail.com>:
> >Hi,
> >I have had a random kernel panic which I am not able to reproduce while
> >unloading snd_hda.ko. Here is the backtrace
> >
> >#0  _get_mycpu () at ./machine/thread.h:69
> >#1  panic (fmt=fmt at entry=0xffffffff80d18328 "%s called with uninitialized
> >or corrupt sbuf") at /usr/src/sys/kern/kern_shutdown.c:868
> >#2  0xffffffff806a6d92 in _assert_sbuf_integrity
> >(fun=fun at entry=0xffffffff80d18678
> ><__func__.5808> "sbuf_delete",
> >    s=s at entry=0xffffffff81f28100 <sndstat_sbuf>) at
> >/usr/src/sys/kern/subr_sbuf.c:100
> >#3  0xffffffff806a7aab in sbuf_delete (s=0xffffffff81f28100
> <sndstat_sbuf>)
> >at /usr/src/sys/kern/subr_sbuf.c:756
> >#4  0xffffffff81f044bc in sndstat_uninit () at
> >/usr/src/sys/dev/sound/sound/../pcm/sndstat.c:453
> >#5  sndstat_sysuninit (p=<optimized out>) at
> >/usr/src/sys/dev/sound/sound/../pcm/sndstat.c:471
> >#6  0xffffffff80625e9a in linker_file_sysuninit (lf=0xfffff800cf121080) at
> >/usr/src/sys/kern/kern_linker.c:230
> >#7  linker_file_unload (file=0xfffff800cf121080) at
> >/usr/src/sys/kern/kern_linker.c:535
> >#8  linker_file_unload (file=0xfffff800cf121080) at
> >/usr/src/sys/kern/kern_linker.c:477
> >#9  0xffffffff80625c3e in linker_file_unload (file=0xfffff800cf120fe0) at
> >/usr/src/sys/kern/kern_linker.c:545
> >#10 linker_file_unload (file=0xfffff800cf120fe0) at
> >/usr/src/sys/kern/kern_linker.c:477
> >#11 0xffffffff80626ea1 in sys_kldunload (sysmsg=<optimized out>,
> >uap=<optimized out>) at /usr/src/sys/kern/kern_linker.c:854
> >#12 0xffffffff80bec6be in syscall2 (frame=0xfffff801fbe439f8) at
> >/usr/src/sys/platform/pc64/x86_64/trap.c:1285
> >#13 0xffffffff80baf77d in Xfast_syscall () at
> >/usr/src/sys/platform/pc64/x86_64/exception.S:448
> >#14 0x000000000000002b in ?? ()
> >Backtrace stopped: previous frame inner to this frame (corrupt stack?)
> >
> >Thanks
> >Karthik
>
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