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Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap f
From: |
Stefan Priebe - Profihost AG |
Subject: |
Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry |
Date: |
Thu, 06 Feb 2014 15:03:08 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 |
some more things which happen during migration:
php5.2[20258]: segfault at a0 ip 0000000000740656 sp 00007fff53b694a0
error 4 in php-cgi[400000+6d7000]
php5.2[20249]: segfault at c ip 00007f1fb8ecb2b8 sp 00007fff642d9c20
error 4 in ZendOptimizer.so[7f1fb8e71000+147000]
cron[3154]: segfault at 7f0008a70ed4 ip 00007fc890b9d440 sp
00007fff08a6f9b0 error 4 in libc-2.13.so[7fc890b67000+182000]
Stefan
Am 06.02.2014 13:10, schrieb Stefan Priebe - Profihost AG:
> May be,
>
> sadly i've no idea. Only using 3.10 Kernel with XFS.
>
> Stefan
>
> Am 06.02.2014 12:40, schrieb Alexandre DERUMIER:
>>>> PS: all my guests do not even have !!SWAP!!
>>
>> Not sure is related to swap file.
>>
>> I found an similar problem here, triggered with suspend/resume on ext4
>>
>> http://lkml.indiana.edu/hypermail/linux/kernel/1106.3/01340.html
>>
>>
>> Maybe is it a guest kernel bug ?
>>
>> ----- Mail original -----
>>
>> De: "Stefan Priebe - Profihost AG" <address@hidden>
>> À: "Alexandre DERUMIER" <address@hidden>
>> Cc: address@hidden, "qemu-devel" <address@hidden>
>> Envoyé: Jeudi 6 Février 2014 12:19:36
>> Objet: Re: [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry
>>
>>
>> Am 06.02.2014 12:14, schrieb Alexandre DERUMIER:
>>> Do you force rbd_cache=true in ceph.conf?
>>
>> no
>>
>>> if yes, do you use cache=writeback ?
>>
>> yes
>>
>> So this should be safe.
>>
>> PS: all my guests do not even have !!SWAP!!
>>
>> # free|grep Swap
>> Swap: 0 0 0
>>
>> Stefan
>>
>>> according to ceph doc:
>>> http://ceph.com/docs/next/rbd/qemu-rbd/
>>>
>>> "Important If you set rbd_cache=true, you must set cache=writeback or risk
>>> data loss. Without cache=writeback, QEMU will not send flush requests to
>>> librbd. If QEMU exits uncleanly in this configuration, filesystems on top
>>> of rbd can be corrupted."
>>>
>>>
>>>
>>> ----- Mail original -----
>>>
>>> De: "Stefan Priebe" <address@hidden>
>>> À: address@hidden, "qemu-devel" <address@hidden>
>>> Envoyé: Mercredi 5 Février 2014 18:51:15
>>> Objet: [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry
>>>
>>> Hello,
>>>
>>> after live migrating machines with a lot of memory (32GB, 48GB, ...) i
>>> see pretty often crashing services after migration and the guest kernel
>>> prints:
>>>
>>> [1707620.031806] swap_free: Bad swap file entry 00377410
>>> [1707620.031806] swap_free: Bad swap file entry 00593c48
>>> [1707620.031807] swap_free: Bad swap file entry 03201430
>>> [1707620.031807] swap_free: Bad swap file entry 01bc5900
>>> [1707620.031807] swap_free: Bad swap file entry 0173ce40
>>> [1707620.031808] swap_free: Bad swap file entry 011c0270
>>> [1707620.031808] swap_free: Bad swap file entry 03c58ae8
>>> [1707660.749059] BUG: Bad rss-counter state mm:ffff88064d09f380 idx:1
>>> val:1536
>>> [1707660.749937] BUG: Bad rss-counter state mm:ffff88064d09f380 idx:2
>>> val:-1536
>>>
>>> Qemu is 1.7
>>>
>>> Does anybody know a fix?
>>>
>>> Greets,
>>> Stefan
>>> _______________________________________________
>>> pve-devel mailing list
>>> address@hidden
>>> http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
>>>
- [Qemu-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe, 2014/02/05
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry,
Stefan Priebe - Profihost AG <=
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Marcin Gibuła, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe, 2014/02/06
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Alexandre DERUMIER, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Marcin Gibuła, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Stefan Priebe - Profihost AG, 2014/02/07
- Re: [Qemu-devel] [pve-devel] QEMU LIve Migration - swap_free: Bad swap file entry, Dr. David Alan Gilbert, 2014/02/07