Possible kqueue related issue on STABLE/RC.
olgeni at olgeni.com
Thu Sep 12 07:45:52 UTC 2013
On Thu, 12 Sep 2013, Konstantin Belousov wrote:
>> This time I tried with clang + these options and I got something more
>> interesting. All works fine until the lock violation below:
> Clang is, well, not relevant there.
Still, with clang I could get a hard reset rather than a hang. But
maybe there are two different issues. I'll run more tests and see if
the fifo problem goes away with your patch below.
> It seems you edited the kernel output, at least rearranging large blocks
> of text. I tried to interpret what I see in a useful way.
I got the message buffer from a minidump, here:
> Might be, your issue is that some filesystems do not care about proper
> locking mode for the fifos. UFS carefully disables shared locking for
> VFIFO, but it seems ZFS is not. I can propose the following band-aid,
> which could help you.
Thanks a lot! I'll give it a run when I get back home.
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