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From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
To: Josef Bacik <josef@toxicpanda.com>, Chris Mason <clm@fb.com>,
	David Sterba <dsterba@suse.com>,
	linux-btrfs@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	"kernel-team@lists.ubuntu.com" <kernel-team@lists.ubuntu.com>,
	"ltp@lists.linux.it" <ltp@lists.linux.it>,
	Qu Wenruo <wqu@suse.com>, Filipe Manana <fdmanana@suse.com>
Subject: Re: [BUG] btrfs potential failure on 32 core LTP test (fallocate05)
Date: Tue, 29 Jun 2021 20:28:02 +0200	[thread overview]
Message-ID: <9e2214b1-999d-90cf-a5c2-2dbb5a2eadd4@canonical.com> (raw)
In-Reply-To: <2576a472-1c99-889a-685c-a12bbfb08052@canonical.com>

On 29/06/2021 20:06, Krzysztof Kozlowski wrote:
> Minor update - it's not only Azure's. AWS m5.8xlarge and m5.16xlarge (32
> and 64 cores) fail similarly. I'll try later also QEMU machines with
> different amount of CPUs.
> 

Test on QEMU machine with 31 CPUs passes. With 32 CPUs - failure as
reported.

dmesg is empty - no error around this.

Maybe something with per-cpu variables?

Best regards,
Krzysztof

  reply	other threads:[~2021-06-29 18:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-29 17:00 [BUG] btrfs potential failure on 32 core LTP test (fallocate05) Krzysztof Kozlowski
2021-06-29 17:20 ` Josef Bacik
2021-06-29 17:25   ` Krzysztof Kozlowski
2021-06-30 11:21     ` [LTP] " Petr Vorel
2021-06-30 11:29       ` Petr Vorel
2021-06-29 17:24 ` Josef Bacik
2021-06-29 17:26   ` Krzysztof Kozlowski
2021-06-29 17:28     ` Josef Bacik
2021-06-29 18:06       ` Krzysztof Kozlowski
2021-06-29 18:28         ` Krzysztof Kozlowski [this message]
2021-06-29 18:32           ` Josef Bacik
2021-06-30  8:34             ` Krzysztof Kozlowski
2021-06-29 20:14           ` Josef Bacik
2021-06-30  6:52             ` Krzysztof Kozlowski

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