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SubjectRe: ext4+quota+nfs issue
Hi,

can somebody who is aware of ext4 and quota have a look on this one?


Thanks,

P.

On 8. 9. 2009 7:04, Pavol Cvengros wrote:
> Hello,
>
> recently we have build and started to use raid storage with formatted
> capacity of 4.5T (ext4 formatted, default params).
> FS has quota turned on and is exported via NFS to nodes.
> If we turn qouta on on this FS and are trying to use it over NFS we
> get the following:
>
> ------------[ cut here ]------------
> WARNING: at fs/quota/dquot.c:964 dquot_claim_space+0x181/0x190()
> Hardware name: S3210SH
> Modules linked in: nfs fscache nfsd lockd auth_rpcgss exportfs sunrpc
> coretemp hwmon ipmi_si ipmi_msghandler ehci_hcd sr_mod cdrom uhci_hcd
> floppy usbcore i2c_i801 i2c_core processor 3w_9xxx button thermal
> Pid: 268, comm: pdflush Tainted: G W 2.6.30-gentoo-r3_host #1
> Call Trace:
> [<ffffffff803151e1>] ? dquot_claim_space+0x181/0x190
> [<ffffffff80245c59>] ? warn_slowpath_common+0x89/0x100
> [<ffffffff803151e1>] ? dquot_claim_space+0x181/0x190
> [<ffffffff80367e83>] ? ext4_mb_mark_diskspace_used+0x423/0x440
> [<ffffffff8036c05f>] ? ext4_mb_new_blocks+0x2cf/0x460
> [<ffffffff80360a17>] ? ext4_ext_find_extent+0x307/0x330
> [<ffffffff80362508>] ? ext4_ext_get_blocks+0x578/0xfc0
> [<ffffffff8028e828>] ? __pagevec_free+0x48/0x70
> [<ffffffff803a1c65>] ? blk_rq_bio_prep+0x35/0x130
> [<ffffffff8034d310>] ? ext4_get_blocks_wrap+0x210/0x380
> [<ffffffff8034d8d8>] ? mpage_da_map_blocks+0xe8/0x750
> [<ffffffff80292cee>] ? pagevec_lookup_tag+0x2e/0x50
> [<ffffffff8029084c>] ? write_cache_pages+0x11c/0x400
> [<ffffffff8034e500>] ? __mpage_da_writepage+0x0/0x190
> [<ffffffff8034e269>] ? ext4_da_writepages+0x329/0x4b0
> [<ffffffff80290bd2>] ? do_writepages+0x32/0x70
> [<ffffffff802e4140>] ? __writeback_single_inode+0xb0/0x490
> [<ffffffff8023c753>] ? dequeue_entity+0x23/0x1c0
> [<ffffffff802e4b16>] ? generic_sync_sb_inodes+0x316/0x4f0
> [<ffffffff802e4f4e>] ? writeback_inodes+0x5e/0x110
> [<ffffffff80290e56>] ? wb_kupdate+0xc6/0x160
> [<ffffffff80292110>] ? pdflush+0x120/0x230
> [<ffffffff80290d90>] ? wb_kupdate+0x0/0x160
> [<ffffffff80291ff0>] ? pdflush+0x0/0x230
> [<ffffffff80261154>] ? kthread+0x64/0xc0
> [<ffffffff8020d13a>] ? child_rip+0xa/0x20
> [<ffffffff802610f0>] ? kthread+0x0/0xc0
> [<ffffffff8020d130>] ? child_rip+0x0/0x20
> ---[ end trace cb54e6523e9ab60d ]---
>
> fstab entry:
> /dev/sdb1 /mnt/storage ext4
> noatime,nodiratime,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0
>
>
> qith quotaoff on tihs FS, warnings stop.
>
> Question is if it's safe to use quotas with this problem (warning) or
> not. Can't afford data damage.
>
> Thanks,
>
> Pavol Cvengros
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