From: "Aurélien Aptel" <aaptel@suse.com>
To: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>,
linux-cifs@vger.kernel.org
Subject: Re: Kernel hangs in cifs_reconnect
Date: Tue, 15 Oct 2019 17:33:08 +0200 [thread overview]
Message-ID: <871rveaurv.fsf@suse.com> (raw)
In-Reply-To: <56d13db4-62ed-99c0-90b8-bb332143cece@prodrive-technologies.com>
Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com> writes:
> Our Linux VMs reports call traces about processes being stuck.
> I've attached the full dmesg of one of the call traces below.
>
> The machine is running kernel 5.3.1 SMP. All mounts are mounted via the
> dfs shares on our domain controller and have the following options in fstab:
> nohandlecache,multiuser,sec=krb5,noperm,user=xxxx,file_mode=0600,dir_mode=0700,vers=3.0
It looks like its DFS related. The DFS cache code takes the reconnect
mutex and crashes with no chance to give back the mutex, making all
other process hang while waiting for it.
Cheers,
--
Aurélien Aptel / SUSE Labs Samba Team
GPG: 1839 CB5F 9F5B FB9B AA97 8C99 03C8 A49B 521B D5D3
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, DE
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 247165 (AG München)
next prev parent reply other threads:[~2019-10-15 15:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-13 15:55 Kernel hangs in cifs_reconnect Martijn de Gouw
2019-10-15 15:33 ` Aurélien Aptel [this message]
2019-10-15 16:27 ` Paulo Alcantara
2019-10-20 8:13 ` Martijn de Gouw
2019-10-29 11:07 ` Martijn de Gouw
2019-10-29 14:49 ` Paulo Alcantara
2019-10-29 18:38 ` Martijn de Gouw
2019-10-30 19:17 ` Martijn de Gouw
2019-10-30 19:33 ` Paulo Alcantara
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