From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mickael Marchand Subject: Re: reiser4: mv changes mtime ? Date: Fri, 08 Apr 2005 11:32:52 +0200 Message-ID: <42564FC4.3060504@ujf-grenoble.fr> References: <4254F10A.7060103@ujf-grenoble.fr> <1112944858.4420.94.camel@tribesman.namesys.com> <42564609.4040208@ujf-grenoble.fr> Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/x-pkcs7-signature"; micalg=sha1; boundary="=_fourier.ujf-grenoble.fr-24235-1112952782-0001-2" Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com In-Reply-To: List-Id: To: "Kathy KN (HK)" Cc: Vladimir Saveliev , reiserfs-list@namesys.com --=_fourier.ujf-grenoble.fr-24235-1112952782-0001-2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Kathy KN (HK) wrote: > For your first problem, > > see fs/reiser4/plugin/dir/hashed_dir.c, line 540, > comment "from_dir->i_mtime = CURRENT_TIME;" away, > and recompile your kernel. > > mtime shouldn't update when you try to "mv", and thus > will not break your backup scripts. ho, thanks, looks like a simple patch to try :) Cheers, Mik > > Kathy > > On Apr 8, 2005 4:51 PM, Mickael Marchand > wrote: > >>hmm just got 3 more soft lookups in a few hours (2/3 hours I think) ;) >>my script (attached in case you want to try it) for backups basically do: >>rm -rf hourly.11 >>mv hourly.10 hourly.11 >>... >>mv hourly.1 hourly.2 >>mv hourly.0 hourly.1 >>cp -al hourly.1 hourly.0 >> >>rsync [various options] /home/ hourly.0/ >> >>the size of the base backup being about 37Go which is incrementally >>rsync-ed thanks to hard links on a 500Go raid6 array. >> >>another backups scripts just rsync some box over ssh once a day ... >> >>tell me if I can provide more infos that could help you ... >> >>Cheers, >>Mik >> >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>ssh[4076]: segfault at 0000000000000000 rip 0000000000425b05 rsp >>00007ffffffb0c50 error 4 >>ssh[4079]: segfault at 0000000000000000 rip 0000000000425b05 rsp >>00007fffffef6a50 error 4 >>ssh[4082]: segfault at 0000000000000000 rip 0000000000425b05 rsp >>00007ffffff92250 error 4 >>ssh[4085]: segfault at 0000000000000000 rip 0000000000425b05 rsp >>00007fffff956810 error 4 >>ssh[4088]: segfault at 0000000000000000 rip 0000000000425b05 rsp >>00007fffffe9f9f0 error 4 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>BUG: soft lockup detected on CPU#0! >> >>Modules linked in: ipv6 parport_pc parport ehci_hcd eth1394 uhci_hcd >>ohci1394 ieee1394 ohci_hcd usbcore snd_intel8x0 snd_ac97_codec snd_pcm >>snd_timer snd snd_page_alloc i2c_amd756 i2c_amd8111 i2c_isa w83781d >>i2c_sensor i2c_core e1000 >>Pid: 6131, comm: pdflush Not tainted 2.6.12-rc2-mm1 >>RIP: 0010:[] {jlookup+36} >>RSP: 0018:ffff81001def3670 EFLAGS: 00000286 >>RAX: ffff81007f81b340 RBX: ffff8100c09f5000 RCX: 00000000000038b1 >>RDX: ffff81001c7171c0 RSI: 000000000030c1df RDI: ffff8100c739b020 >>RBP: 0000002000000000 R08: ffff81001def38a0 R09: ffff810011b54b54 >>R10: 0000000000000026 R11: ffffffff802118d0 R12: 00007fe01def35e0 >>R13: ffff8100c09f5004 R14: ffff81001def365c R15: 00007fe000000001 >>FS: 00002aaaaadfeae0(0000) GS:ffffffff806eb840(0000) knlGS:0000000000000000 >>CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b >>CR2: 00002aaaabb58dc8 CR3: 000000000dbab000 CR4: 00000000000006e0 >> >>Call Trace:{protect_extent_nodes+213} >>{extent_size+30} >> {txnh_get_atom+41} >>{alloc_extent+562} >> {plugin_by_unsafe_id+28} >>{item_length_by_coord+17} >> {handle_pos_on_twig+351} >>{flush_current_atom+2022} >> {flush_some_atom+458} >>{generic_sync_sb_inodes+723} >> {keventd_create_kthread+0} >>{reiser4_sync_inodes+229} >> {writeback_inodes+137} >>{background_writeout+124} >> {pdflush+0} {pdflush+316} >> {background_writeout+0} >>{kthread+217} >> {schedule_tail+64} {child_rip+8} >> {keventd_create_kthread+0} >>{kthread+0} >> {child_rip+0} >>BUG: soft lockup detected on CPU#0! >> >>Modules linked in: ipv6 parport_pc parport ehci_hcd eth1394 uhci_hcd >>ohci1394 ieee1394 ohci_hcd usbcore snd_intel8x0 snd_ac97_codec snd_pcm >>snd_timer snd snd_page_alloc i2c_amd756 i2c_amd8111 i2c_isa w83781d >>i2c_sensor i2c_core e1000 >>Pid: 6131, comm: pdflush Not tainted 2.6.12-rc2-mm1 >>RIP: 0010:[] {jlookup+36} >>RSP: 0018:ffff81001def3670 EFLAGS: 00000282 >>RAX: ffff810058578880 RBX: ffff8100c0a5f000 RCX: 000000000000c0c3 >>RDX: ffff81004d60ec40 RSI: 000000000030c1df RDI: ffff8100c739b020 >>RBP: 0000002000000000 R08: ffff81001def38a0 R09: ffff810040f9570c >>R10: 0000000000000018 R11: ffffffff802118d0 R12: 00007fe00001412a >>R13: ffff8100c0a5f004 R14: ffff81001def365c R15: 00007fe000000001 >>FS: 00002aaaaadfeae0(0000) GS:ffffffff806eb840(0000) knlGS:0000000000000000 >>CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b >>CR2: 00002aaaaaac2000 CR3: 000000000dbab000 CR4: 00000000000006e0 >> >>Call Trace:{protect_extent_nodes+213} >>{extent_size+30} >> {txnh_get_atom+41} >>{alloc_extent+562} >> {longterm_unlock_znode+275} >>{item_id_by_coord+45} >> {handle_pos_on_twig+351} >>{flush_current_atom+2022} >> {flush_some_atom+458} >>{generic_sync_sb_inodes+723} >> {keventd_create_kthread+0} >>{reiser4_sync_inodes+229} >> {writeback_inodes+137} >>{background_writeout+124} >> {pdflush+0} {pdflush+316} >> {background_writeout+0} >>{kthread+217} >> {schedule_tail+64} {child_rip+8} >> {keventd_create_kthread+0} >>{kthread+0} >> {child_rip+0} >>BUG: soft lockup detected on CPU#0! >> >>Modules linked in: ipv6 parport_pc parport ehci_hcd eth1394 uhci_hcd >>ohci1394 ieee1394 ohci_hcd usbcore snd_intel8x0 snd_ac97_codec snd_pcm >>snd_timer snd snd_page_alloc i2c_amd756 i2c_amd8111 i2c_isa w83781d >>i2c_sensor i2c_core e1000 >>Pid: 8037, comm: rsync Not tainted 2.6.12-rc2-mm1 >>RIP: 0010:[] {jlookup+36} >>RSP: 0018:ffff81007539f3f0 EFLAGS: 00000282 >>RAX: ffff81001fdf8580 RBX: ffff8100c0940000 RCX: 000000000001c54e >>RDX: ffff81001ae99880 RSI: 000000000030c1df RDI: ffff8100c739b020 >>RBP: 0000002000000000 R08: ffff81007539f620 R09: ffff81008ab989bc >>R10: 000000000000003b R11: ffffffff802118d0 R12: 00007fe07539f360 >>R13: ffff8100c0940004 R14: ffff81007539f3dc R15: 00007fe000000001 >>FS: 00002aaaab01b6d0(0000) GS:ffffffff806eb840(0000) knlGS:0000000000000000 >>CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b >>CR2: 00002aaaaaac2000 CR3: 000000000dbab000 CR4: 00000000000006e0 >> >>Call Trace:{protect_extent_nodes+213} >>{extent_size+30} >> {txnh_get_atom+41} >>{alloc_extent+562} >> {longterm_unlock_znode+275} >>{handle_pos_end_of_twig+642} >> {item_length_by_coord+17} >>{handle_pos_on_twig+351} >> {flush_current_atom+2022} >>{owns_item_common+75} >> {txn_end+419} {txn_restart+9} >> {reiser4_throttle_write+9} >>{write_extent+1509} >> {item_length_by_coord+17} >>{nr_units_extent+9} >> {init_coord_extension_extent+121} >> {write_extent+0} {write_flow+640} >> {__down_read+49} >>{write_unix_file+835} >> {txn_end+1114} >>{reiser4_write+157} >> {vfs_write+190} {sys_write+83} >> {system_call+126} >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >>reiser4[ktxnmgrd:md3:ti(3087)]: commit_current_atom >>(fs/reiser4/txnmgr.c:1147)[nikita-3176]: >>WARNING: Flushing like mad: 16384 >> >> >>Vladimir Saveliev wrote: >> >>>Hello >>> >>>On Thu, 2005-04-07 at 12:36, Mickael Marchand wrote: >>> >>> >>>>Hi, >>>> >>>>I am giving a shot at reiser4 to make rsync snapshots backups (using >>>>hard links and incremental rsync). >>>>this works definitely great apart from 2 minor bugs :) >>>> >>>>1 : it seems that mv directory/ directory2/ changes the mtime of the >>>>directory. This is not the case with reiser3. >>> >>> >>>I am not sure which is correct. >>>ext2 also changes mtime when it renames a directory. >>> >>>Also, renaming directory changes its ".." entry because on rename it may >>>get new parent. So, probably, updating mtime on directory rename is not >>>very incorrect. >>> >>> >>> >>>>Is this intentional ? >>>>(it basically breaks my recover-from-snapshots script which uses the >>>>mtime ;) >>>> >>>>2 : this was posted on lkml today but it fits better here I guess : >>>> >>>>2.6.12-rc1-mm4 config at >>>>http://www-fourier.ujf-grenoble.fr/~mmarcha/config-2.6.12-rc1-mm4.gz >>>> >>>>running on a bi-opteron (debian-amd64), >>>>I got some "flushing like mad" warning messages from reiser4 (which >>>>are safe apparently). >>> >>> >>>yes, if its counter does not increase endlessly. >>> >>> >>> >>>>and this soft lookup BUG caused by reiser4 I think : >>>> >>> >>> >>>Have you found a test on which this soft lockup get detected 10 times in >>>10 attempts? >>> >>> >>> >>>>BUG: soft lockup detected on CPU#0! >>>> >>>>Modules linked in: ipv6 parport_pc parport eth1394 ehci_hcd uhci_hcd >>>>ohci1394 ieee1394 ohci_hcd usbcore snd_intel8x0 snd_ac97_codec snd_pcm >>>>snd_timer snd snd_page_alloc i2c_amd756 i2c_amd8111 i2c_isa w83781d >>>>i2c_sensor i2c_core e1000 >>>>Pid: 25291, comm: pdflush Not tainted 2.6.12-rc1-mm4 >>>>RIP: 0010:[] {protect_extent_nodes+382} >>>>RSP: 0018:ffff81007df45678 EFLAGS: 00000202 >>>>RAX: ffff810015c7c5e0 RBX: ffff81007c609000 RCX: ffff81001074ba60 >>>>RDX: ffff81001074b220 RSI: ffff81001074b1c0 RDI: ffff81001074b210 >>>>RBP: 0000002000000000 R08: ffff81007df458a0 R09: ffff810044068e14 >>>>R10: 000000000000001c R11: ffffffff802119a0 R12: 00007fe07df455e0 >>>>R13: ffff81007c609004 R14: ffff81007df4565c R15: 00007fe000000001 >>>>FS: 00002aaaaadfeae0(0000) GS:ffffffff806e7840(0000) knlGS:0000000000000000 >>>>CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b >>>>CR2: 00002aaaaaac2000 CR3: 000000009bc83000 CR4: 00000000000006e0 >>>> >>>>Call Trace:{protect_extent_nodes+378} >>>>{extent_size+30} >>>> {txnh_get_atom+41} >>>>{alloc_extent+562} >>>> {plugin_by_unsafe_id+28} >>>>{item_length_by_coord+17} >>>> {handle_pos_on_twig+351} >>>>{flush_current_atom+2022} >>>> {flush_some_atom+458} >>>>{generic_sync_sb_inodes+723} >>>> {keventd_create_kthread+0} >>>>{reiser4_sync_inodes+229} >>>> {writeback_inodes+137} >>>>{background_writeout+124} >>>> {pdflush+0} {pdflush+316} >>>> {background_writeout+0} >>>>{kthread+217} >>>> {schedule_tail+64} {child_rip+8} >>>> {keventd_create_kthread+0} >>>>{kthread+0} >>>> {child_rip+0} >>>> >>>>Please CC-me in answers, I am not subscribed here. >>>> >>>>Cheers, >>>>Mik >>>> >>> >>> >>-- >>Mickael Marchand, >>Ingenieur de recherche CNRS >>Service Informatique, Institut Fourier - UFR Maths >>Tel : 0476635655 Fax : 0476514478 >> >> >> -- Mickael Marchand, Ingenieur de recherche CNRS Service Informatique, Institut Fourier - UFR Maths Tel : 0476635655 Fax : 0476514478 --=_fourier.ujf-grenoble.fr-24235-1112952782-0001-2 Content-Type: application/x-pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: 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