From: Pavol Cvengros Subject: Re: ext4+quota+nfs issue Date: Thu, 10 Sep 2009 05:21:46 +0200 Message-ID: <4AA870CA.906@primeinteractive.net> References: <4AA5E5F3.30309@primeinteractive.net> <4AA72C14.1020005@primeinteractive.net> <4AA7C38E.8020306@redhat.com> <1252531929.19097.174.camel@mingming-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Eric Sandeen , Jiri Kosina , linux-kernel@vger.kernel.org, Jan Kara , linux-ext4@vger.kernel.org To: Mingming Return-path: Received: from ns1.primeinteractive.net ([195.95.205.253]:36683 "EHLO mail.primeinteractive.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755010AbZIJDWG (ORCPT ); Wed, 9 Sep 2009 23:22:06 -0400 In-Reply-To: <1252531929.19097.174.camel@mingming-laptop> Sender: linux-ext4-owner@vger.kernel.org List-ID: On 9. 9. 2009 23:32, Mingming wrote: > On Wed, 2009-09-09 at 10:02 -0500, Eric Sandeen wrote: > >> Jiri Kosina wrote: >> >>> [ adding relevant CCs ] >>> >>> On Wed, 9 Sep 2009, Pavol Cvengros wrote: >>> >>> >>>> Hi, >>>> >>>> can somebody who is aware of ext4 and quota have a look on this one? >>>> >>>> >> This was also just reported at: >> >> https://bugzilla.redhat.com/show_bug.cgi?id=521914 >> >> > Checked the bugzilla, it seems the fs enabled quota, but no user quota > limit is specified. Is this the case with the ext4 quota+ nfs issue too? > > If no user quota is specified, then IS_NOQUOTA() should avoid doing > quota reservation/claim at all. Not sure what is missing... I will check > if I could reproduce this on local filesystem... > > Thanks, > Mingming > yes, FS has quota just enabled and only initial quotacheck was done P. >> -Eric >> >> >>>> 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: >>>>> [] ? dquot_claim_space+0x181/0x190 >>>>> [] ? warn_slowpath_common+0x89/0x100 >>>>> [] ? dquot_claim_space+0x181/0x190 >>>>> [] ? ext4_mb_mark_diskspace_used+0x423/0x440 >>>>> [] ? ext4_mb_new_blocks+0x2cf/0x460 >>>>> [] ? ext4_ext_find_extent+0x307/0x330 >>>>> [] ? ext4_ext_get_blocks+0x578/0xfc0 >>>>> [] ? __pagevec_free+0x48/0x70 >>>>> [] ? blk_rq_bio_prep+0x35/0x130 >>>>> [] ? ext4_get_blocks_wrap+0x210/0x380 >>>>> [] ? mpage_da_map_blocks+0xe8/0x750 >>>>> [] ? pagevec_lookup_tag+0x2e/0x50 >>>>> [] ? write_cache_pages+0x11c/0x400 >>>>> [] ? __mpage_da_writepage+0x0/0x190 >>>>> [] ? ext4_da_writepages+0x329/0x4b0 >>>>> [] ? do_writepages+0x32/0x70 >>>>> [] ? __writeback_single_inode+0xb0/0x490 >>>>> [] ? dequeue_entity+0x23/0x1c0 >>>>> [] ? generic_sync_sb_inodes+0x316/0x4f0 >>>>> [] ? writeback_inodes+0x5e/0x110 >>>>> [] ? wb_kupdate+0xc6/0x160 >>>>> [] ? pdflush+0x120/0x230 >>>>> [] ? wb_kupdate+0x0/0x160 >>>>> [] ? pdflush+0x0/0x230 >>>>> [] ? kthread+0x64/0xc0 >>>>> [] ? child_rip+0xa/0x20 >>>>> [] ? kthread+0x0/0xc0 >>>>> [] ? 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 >>>>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-ext4" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > -- > To unsubscribe from this list: send the line "unsubscribe linux-ext4" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >