svn commit: r303019 - head/sys/geom

[Warner Losh]

On Fri, Aug 12, 2016 at 9:11 AM, Kenneth D. Merry <ken at freebsd.org> wrote:
> On Fri, Aug 12, 2016 at 13:38:21 +0300, Andrey V. Elsukov wrote:
>> On 12.08.16 03:26, Bryan Drewery wrote:
>> > On r303467 I ran into this:
>> >
>> > panic @ time 1470916206.652, thread 0xfffff8000412f000:
>> > g_resize_provider_event but withered
>> > cpuid = 0
>> > Panic occurred in module kernel loaded at 0xffffffff80200000:
>> >
>> > Stack: --------------------------------------------------
>> > kernel:kassert_panic+0x166
>> > kernel:g_resize_provider_event+0x181
>> > kernel:g_run_events+0x186^M^M
>> > kernel:fork_exit+0x83^M^M
>> > --------------------------------------------------
>> >
>> > No further information available unfortunately.
>>
>> This one is related to r302087 :)
>
> It looks like there is a race.  I think we need to replace the KASSERT
> in g_resize_provider_event() with a return in case the provider is
> withered.
>
> I won't be able to work on or test this until sometime next week.  So if
> you guys want to go ahead and make the change, please do.

But why are we calling g_resize_provider on a withered object? That's
the part I don't understand in this thread.

Warner