From: Chuck Lever <chuck.lever@oracle.com>
To: sea you <seayou@gmail.com>
Cc: Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: Kernel panic in laundromat_main on 5.3.0-46-generic (Ubuntu HWE)
Date: Tue, 18 Aug 2020 10:08:12 -0400 [thread overview]
Message-ID: <9AB0122A-E656-416E-86A7-B2A623E57152@oracle.com> (raw)
In-Reply-To: <CAL9i7GHMbU9_5i6r-c=kmv+q0LPTKAX8WX0bNxpwzeXT=UjN-g@mail.gmail.com>
Hi-
> On Aug 12, 2020, at 5:24 AM, sea you <seayou@gmail.com> wrote:
>
> After upgrading the kernel to 5.4.0-39-generic, the very same happened again.
> You could find more information here on LaunchPad
> https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1885265
>
> Anyone else experienced this? This definitely looks like a bug to me
> at this point.
Thanks for the bug report.
This appears to be a distributor's kernel and ZFS (which is an out-
of-tree filesystem) is the backend.
The distributor will have to drill down on this issue with a recent
upstream kernel and a native filesystem to demonstrate we have an
upstream bug.
> On Thu, May 14, 2020 at 12:26 PM sea you <seayou@gmail.com> wrote:
>>
>> Hi all,
>>
>> Today we've seen a kernel panic that looks like related to delegations
>> and laundromat
>>
>> ...
>> [1388051.959652] Call Trace:
>> [1388051.959984] unhash_delegation_locked+0x39/0xa0 [nfsd]
>> [1388051.960631] laundromat_main+0x235/0x5a0 [nfsd]
>> [1388051.961234] process_one_work+0x1fd/0x3f0
>> [1388051.961803] worker_thread+0x34/0x410
>> [1388051.962281] kthread+0x121/0x140
>> [1388051.962698] ? process_one_work+0x3f0/0x3f0
>> [1388051.963210] ? kthread_park+0xb0/0xb0
>> [1388051.963690] ret_from_fork+0x22/0x40
>> ....
>>
>> In the link below you'll find what has been captured from the console.
>>
>> https://pastebin.com/raw/CdpMfUAK
>>
>> I couldn't really find any reference to this in the mailing list
>> history so I assume we might have hit a bug that is unknown so far.
>>
>> Best regards,
>> Doma
--
Chuck Lever
prev parent reply other threads:[~2020-08-18 14:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 10:26 Kernel panic in laundromat_main on 5.3.0-46-generic (Ubuntu HWE) sea you
2020-08-12 9:24 ` sea you
2020-08-18 14:08 ` Chuck Lever [this message]
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