Hi Yorick.

On Sat, Apr 18, 2020 at 11:00:02AM +0200, Yorick Hardy wrote:

> > I just had the same panic with 9.99.55:
> > 
> >   Crash version 9.99.55, image version 9.99.55.
> >   crash: _kvm_kvatop(0)
> >   Kernel compiled without options LOCKDEBUG.
> >   System panicked: vrelel: bad ref count
> >   Backtrace from time of crash is available.
> >   crash> bt
> >   _KERNEL_OPT_NAGR() at 0
> >   ?() at 7f7ff7ecf000
> >   sys_reboot() at sys_reboot
> >   vpanic() at vpanic+0x181
> >   vtryrele() at vtryrele
> >   vcache_dealloc() at vcache_dealloc
> >   uvm_unmap_detach() at uvm_unmap_detach+0x76
> >   uvm_unmap1() at uvm_unmap1+0x4e
> >   uvm_mremap() at uvm_mremap+0x36b
> >   sys_mremap() at sys_mremap+0x68
> >   syscall() at syscall+0x227
> >   --- syscall (number 411) ---
> >   797459842e9a:
> >   crash>
> 
> The same just happened on 9.99.56 while fetching (POP) mail using mail/fdm.

Could you file a PR please?  If this panics again could you please run the
"dmesg" command in crash and find out what it printed about the vnode?  That
would be very useful.

Thanks,
Andrew

Reply via email to