linux-ext4 - [Bug 62751] INFO: rcu_sched detected stalls on CPUs/tasks: { 3} (detected by 2, t=15107 jiffies, g=270766, c=270765, q=0)

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Message-ID: <bug-62751-13602-ffQ6cczvwW@https.bugzilla.kernel.org/>
Date:	Mon, 18 Nov 2013 07:51:29 +0000
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 62751] INFO: rcu_sched detected stalls on CPUs/tasks: { 3}
 (detected by 2, t=15107 jiffies, g=270766, c=270765, q=0)

https://bugzilla.kernel.org/show_bug.cgi?id=62751

--- Comment #8 from Loris Luise <loris.luise@...il.com> ---
Hello,

what can I do on my side?

I've done the following modifications:

1) Installed latest mainline kernel 3.12

2) Replaced SCSI drivers from vmw_pvsci to LSI Logic SAS (mptsas)

3) reduced number of CPUs from 8 to 4

4) enabled on ESXi (4.1) setting for this machine "CPU Hot add" feature

The issue is still affecting ths machine... other 2 almost equals machine
running on this host (same kernel) but with XFS on root are not affected and
very
stable.

I reattached another info file (bug-20131118084007.txt) which contains a lot of
infos.

Thanks.

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