From: David Sterba <dsterba@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [btrfs] c0aaf9b7a1: ltp: stuck at diotest4
Date: Thu, 3 Sep 2020 11:11:23 +0200 [thread overview]
Message-ID: <20200903091123.GO28318@suse.cz> (raw)
In-Reply-To: <20200903062837.GA3654@xsang-OptiPlex-9020>
On Thu, Sep 03, 2020 at 02:28:37PM +0800, kernel test robot wrote:
> Greeting,
>
> FYI, we noticed the following commit (built with gcc-9):
>
> commit: c0aaf9b7a114f6b75e0da97be7d99c102347a751 ("btrfs: switch to iomap_dio_rw() for dio")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
That's probably the O_DIRECT + O_(D)SYNC deadlock that was found
recently. One of the cases in diotest4 does
open(filename, O_DIRECT | O_RDWR | O_SYNC)
Fix is work in progress, thanks for the report.
next prev parent reply other threads:[~2020-09-03 9:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 6:28 [LTP] [btrfs] c0aaf9b7a1: ltp: stuck at diotest4 kernel test robot
2020-09-03 9:11 ` David Sterba [this message]
2020-09-03 13:29 ` Sang, Oliver
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