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From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 93251] qemu-kvm guests randomly hangs after reboot command in guest
Date: Fri, 20 Mar 2015 09:16:25 +0000	[thread overview]
Message-ID: <bug-93251-28872-fQdZJjmjd3@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-93251-28872@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=93251

Igor Mammedov <imammedo@redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |imammedo@redhat.com

--- Comment #6 from Igor Mammedov <imammedo@redhat.com> ---
Since commit 1d4e7e3c increased "struct kvm_memslots" size from order 2 to
order 4, like-hood of above failure grew in ~2x times (there where 90 order 2
free pages)

Looking at log from comment 1
allocation failure shouldn't happened since there are still 40 Order 4 free
pages:

> úno 13 18:10:27 argus kernel: Normal: 18555*4kB (UEMC) 145*8kB (UMC) 92*16kB (UM) 54*32kB (UM) 40*64kB (UM) 9*128kB (UM) 2*256kB (U) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 82804kB

Anyway I'll post patch that changes allocation vmalloc-ed memory as quick fix
and look for possibility of allocating actual amount of slots instead of
possible maximum like it's done now.

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  parent reply	other threads:[~2015-03-20  9:16 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-14 12:46 [Bug 93251] New: qemu-kvm guests randomly hangs after reboot command in guest bugzilla-daemon
2015-02-14 12:52 ` [Bug 93251] " bugzilla-daemon
2015-02-25 22:49 ` bugzilla-daemon
2015-03-19 20:01 ` bugzilla-daemon
2015-03-19 21:31 ` bugzilla-daemon
2015-03-19 22:25 ` bugzilla-daemon
2015-03-20  9:16 ` bugzilla-daemon [this message]
2015-03-20  9:28 ` bugzilla-daemon
2015-03-20 10:04 ` bugzilla-daemon
2015-03-20 10:30 ` bugzilla-daemon
2015-03-26 14:51 ` bugzilla-daemon
2015-03-26 15:13 ` bugzilla-daemon
2015-03-27 10:00 ` bugzilla-daemon
2015-03-27 15:08 ` bugzilla-daemon
2015-03-27 15:25 ` bugzilla-daemon
2015-04-14 13:57 ` bugzilla-daemon

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