Dear Andrew, On 2020-04-19, Andrew Doran wrote: > 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
I will do so (... perhaps only this weekend). -- Kind regards, Yorick Hardy