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SubjectRe: [NFSv4.1] 6ae373394c4: kernel boot crash
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On Fri, Feb 6, 2015 at 11:31 PM, Fengguang Wu <fengguang.wu@intel.com> wrote:
> Hi Trond,
>
> On Fri, Feb 06, 2015 at 10:43:34PM -0500, Trond Myklebust wrote:
>> On Fri, Feb 6, 2015 at 9:45 PM, Fengguang Wu <fengguang.wu@intel.com> wrote:
>> >
>> > Hi Trond,
>> >
>> > We noticed the below kernel crash on
>> >
>> > git://git.linux-nfs.org/projects/trondmy/linux-nfs.git testing
>> > commit 6ae373394c4257bad562817aa60464ff7fe8f9c4 ("NFSv4.1: Ask for no delegation on OPEN if using O_DIRECT")
>> >
>> >
>> > testbox/testcase/testparams: vm-vp-quantal-x86_64/boot/1
>> >
>> > 0e3b137fbf0f4ab9 6ae373394c4257bad562817aa6
>> > ---------------- --------------------------
>> > fail:runs %reproduction fail:runs
>> > | | |
>> > :100 4% 2:46 dmesg.BUG:kernel_test_crashed
>> >
>> > The last dmesg lines before the kernel crash are
>> >
>> > [ 0.274266] NET: Registered protocol family 1
>> > [ 0.275236] RPC: Registered named UNIX socket transport module.
>> > [ 0.276123] RPC: Registered udp transport module.
>> > [ 0.276860] RPC: Registered tcp transport module.
>> > [ 0.277617] RPC: Registered tcp NFSv4.1 backchannel transport module
>> >
>> > Thanks,
>> > Fengguang
>>
>>
>> Hi Fengguang,
>>
>> I'm trying to reproduce this issue, but so far no luck. Do you have
>> any details on the test itself that you could share with me?
>
> It looks like a false report, sorry! The real crash dmesg is much
> longer and it ends here:
>
> [ 14.605487] i6300esb: Unexpected close, not stopping watchdog!
>
> Which is not relevant to the NFS change at all.
>
> The dmesg I looked at happen to be truncated (perhaps by email server)
> exactly at a NFS line, which treats me to believe it's a good bisect.
>
> Cheers,
> Fengguang

Phew. So I'm off the hook then. :-)

--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
trond.myklebust@primarydata.com


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