From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 38672] KVM guest boot crashed
Date: Tue, 5 Jul 2011 23:00:49 GMT
Message-ID: <201107052300.p65N0nl3021925@demeter1.kernel.org>
References: <bug-38672-28872@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=38672





--- Comment #5 from Steve <stefan.bosak@gmail.com>  2011-07-05 23:00:47 ---
I tested reported bug on more servers also with kernel 3.0.0-rc6+ -> same
result.

git bisect result:

6506e4f995967b1a48cc34418c77b318df92ce35 is the first bad commit
commit 6506e4f995967b1a48cc34418c77b318df92ce35
Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date:   Thu May 19 18:35:44 2011 +0100

    xen: remove xen_map_block and xen_unmap_block

    Replace xen_map_block with qemu_map_cache with the appropriate locking
    and size parameters.
    Replace xen_unmap_block with qemu_invalidate_entry.

    Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
    Signed-off-by: Alexander Graf <agraf@suse.de>

:100644 100644 01f33bb2bca8ca69ffa03ca5170d1fce3ffd2fb4
e11c1dd97a62669255a35d1628f24fc4adf538fb M      exec.c
:100644 100644 60f712b229b63f63f2fe9e8bf5c867cf4f031d71
8a2380a151978a8735c797529be871b338958b05 M      xen-mapcache-stub.c
:100644 100644 57fe24de86b372775b2a0d4d7537f231626d594e
fac47cd9be72bf1201f21745498625fec44c4515 M      xen-mapcache.c
:100644 100644 b89b8f9653a5f58e0ea710ae0db095a7355c9eb6
6216cc3be7eb68d6c53d21c96a950abcc565a1ba M      xen-mapcache.h

complete git bisect log:

git bisect start
# good: [d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc] Merge commit 'v0.14.1' into
stable-0.14
git bisect good d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc
# bad: [525e3df73e40290e95743d4c8f8b64d8d9cbe021] Merge branch 'master' of
git://git.qemu.org/qemu into next
git bisect bad 525e3df73e40290e95743d4c8f8b64d8d9cbe021
# good: [2d2339f995d7176dcb2de10d162aed323a1ffbf3] Merge commit
'f487d6278f75f84378833b8c3a67443346d639dc' into upstream-merge
git bisect good 2d2339f995d7176dcb2de10d162aed323a1ffbf3
# good: [0e192fae3c79e7d2830f8b1fa694cd8e128084cf] Update version for
0.14.0-rc0
git bisect good 0e192fae3c79e7d2830f8b1fa694cd8e128084cf
# good: [075360945860ad9bdd491921954b383bf762b0e5] spice: don't call
displaystate callbacks from spice server context.
git bisect good 075360945860ad9bdd491921954b383bf762b0e5
# good: [9047c0b40654ce3578c148f6754f878218569252] usb-ehci: move
device/vendor/class id to qdev
git bisect good 9047c0b40654ce3578c148f6754f878218569252
# bad: [75ef849696830fc2ddeff8bb90eea5887ff50df6] esp: correctly fill bus id
with requested lun
git bisect bad 75ef849696830fc2ddeff8bb90eea5887ff50df6
# bad: [d6034a3a61235042a0d79dcc1dfed0fbf461fb18] Merge remote-tracking branch
'qemu-kvm/uq/master' into staging
git bisect bad d6034a3a61235042a0d79dcc1dfed0fbf461fb18
# good: [b45a9b185120a10455859341d8035cce9b441fc8] Merge remote-tracking branch
'qemu-kvm/uq/master' into staging
git bisect good b45a9b185120a10455859341d8035cce9b441fc8
# bad: [ebed85058b6e89a5202112e9aa2abab3aa3804c3] xen: only track the linear
framebuffer
git bisect bad ebed85058b6e89a5202112e9aa2abab3aa3804c3
# good: [22e1e729600dad1639329185614d094243409359] Merge branch
'cocoa-for-upstream' of git://repo.or.cz/qemu/afaerber
git bisect good 22e1e729600dad1639329185614d094243409359
# good: [c13390cd384a9564e6dded127d01ef0627b6b1c5] xen: fix qemu_map_cache with
size != MCACHE_BUCKET_SIZE
git bisect good c13390cd384a9564e6dded127d01ef0627b6b1c5
# bad: [38bee5dc94ee355640b030d28f311b03ee2f13d1] exec.c: refactor
cpu_physical_memory_map
git bisect bad 38bee5dc94ee355640b030d28f311b03ee2f13d1
# bad: [6506e4f995967b1a48cc34418c77b318df92ce35] xen: remove xen_map_block and
xen_unmap_block
git bisect bad 6506e4f995967b1a48cc34418c77b318df92ce35
# good: [cd306087e5a9ea4091071a0a41c0ea99fac60ab0] xen: remove
qemu_map_cache_unlock
git bisect good cd306087e5a9ea4091071a0a41c0ea99fac60ab0

Please could you look at ?

Thank you for your time.

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