Hi Srinivas, I finally had some time to test your new patch. 1) After numerous hotplug actions with SAS and SATA disks I still can't get any kernel panic to occur :) 2) I can finally boot a system with 3x 6480 controllers loaded with SATA disks without a kernel panic. 3) Raid5/6 initialization completes without dropping the disks one after another. 4) One thing that occured was the following: during a raid1 initialization of 2 SAS disks and a raid5 init of 8x SSD's i got a call trace by libata-core.c (see attachment for details). The system continued to work fine after the trace. Great work, this is a much more stable driver now! Kind regards, Caspar Smit > On Wed, Feb 17, 2010 at 12:53 PM, Srinivas Naga Venkatasatya > Pasagadugula - ERS, HCL Tech <satyasrinivasp@xxxxxx> wrote: >> Hi Smit, >> >> This patch is not exactly replaced with Nov-09 patches. >> My patch addresses the RAID5/6 issues also. Below issues are addressed >> by my patch. >> 1. Tape issues. >> 2. RAID-5/6 I/O fails. >> 3. LVM IO fails and subsequent init 6 hang (connect SAS+SATA in cascaded >> expanders, crate volume group and logical volumes, run file I/O >> (alltest), unplug one drive) >> 4. Disk stress I/O on 4096 sector size. >> 5. Hot insertion of drives giving panic. >> 6. 'fdisk -l' hangs with hot plugging of SATA/SAS drives in expander >> while IO (Diskstress and alltest) is going on and IO stopped. >> >> I can't combined my patch with November-09 patches. James also rejected >> those patches as those are not proper. Let me know if you have issues >> with my patch. >> >> --Srini. > > > I haven't tested yet, but looks like you're doing excellent work, and > your documentation/overview of the work is superb. > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html >
[ 1100.142515] xfs_db[3741]: segfault at 40 ip 00007f77b49b14aa sp 00007fff97e87ec0 error 4 in libpthread-2.7.so[7f77b49a9000+16000] [ 1105.078922] xfs_db[3762]: segfault at 40 ip 00007f358fc264aa sp 00007fff802ba850 error 4 in libpthread-2.7.so[7f358fc1e000+16000] [ 1108.135893] xfs_db[3777]: segfault at 40 ip 00007f10890a04aa sp 00007fff2f96c140 error 4 in libpthread-2.7.so[7f1089098000+16000] [ 1131.700988] md: md1 stopped. [ 1131.701083] md: unbind<sdg> [ 1131.717573] md: export_rdev(sdg) [ 1131.717665] md: unbind<sdh> [ 1131.737511] md: export_rdev(sdh) [ 1131.737617] md: unbind<sdi> [ 1131.769010] md: export_rdev(sdi) [ 1131.769115] md: unbind<sdj> [ 1131.801010] md: export_rdev(sdj) [ 1131.801110] md: unbind<sdk> [ 1131.833010] md: export_rdev(sdk) [ 1131.833111] md: unbind<sdd> [ 1131.865009] md: export_rdev(sdd) [ 1131.865108] md: unbind<sde> [ 1131.897010] md: export_rdev(sde) [ 1131.897115] md: unbind<sdf> [ 1131.929009] md: export_rdev(sdf) [ 1140.771637] md: md0 stopped. [ 1140.771723] md: unbind<sdm> [ 1140.785584] md: export_rdev(sdm) [ 1140.785672] md: unbind<sdl> [ 1140.809512] md: export_rdev(sdl) [ 1160.695681] md: bind<sdb> [ 1160.729238] md: bind<sdc> [ 1160.771823] raid1: md0 is not clean -- starting background reconstruction [ 1160.771899] raid1: raid set md0 active with 2 out of 2 mirrors [ 1160.771991] md0: detected capacity change from 0 to 299999887360 [ 1160.772138] md0: unknown partition table [ 1160.777851] md: md0 switched to read-write mode. [ 1160.778032] md: resync of RAID array md0 [ 1160.778103] md: minimum _guaranteed_ speed: 1000 KB/sec/disk. [ 1160.778176] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for resync. [ 1160.778277] md: using 128k window, over a total of 292968640 blocks. [ 1188.740257] md: bind<sdd> [ 1188.742869] md: bind<sde> [ 1188.746254] md: bind<sdf> [ 1188.748809] md: bind<sdg> [ 1188.752187] md: bind<sdh> [ 1188.754698] md: bind<sdi> [ 1188.758394] md: bind<sdj> [ 1188.762040] md: bind<sdk> [ 1188.805114] async_tx: api initialized (async) [ 1188.806118] xor: automatically using best checksumming function: generic_sse [ 1188.825503] generic_sse: 7623.000 MB/sec [ 1188.825574] xor: using function: generic_sse (7623.000 MB/sec) [ 1188.893508] raid6: int64x1 1658 MB/s [ 1188.961522] raid6: int64x2 2219 MB/s [ 1189.029509] raid6: int64x4 1809 MB/s [ 1189.097524] raid6: int64x8 1476 MB/s [ 1189.165520] raid6: sse2x1 3208 MB/s [ 1189.233504] raid6: sse2x2 5342 MB/s [ 1189.301514] raid6: sse2x4 6115 MB/s [ 1189.301583] raid6: using algorithm sse2x4 (6115 MB/s) [ 1189.307208] md: raid6 personality registered for level 6 [ 1189.307281] md: raid5 personality registered for level 5 [ 1189.307351] md: raid4 personality registered for level 4 [ 1189.307517] raid5: md1 is not clean -- starting background reconstruction [ 1189.307606] raid5: device sdk operational as raid disk 7 [ 1189.307677] raid5: device sdj operational as raid disk 6 [ 1189.307748] raid5: device sdi operational as raid disk 5 [ 1189.307824] raid5: device sdh operational as raid disk 4 [ 1189.307904] raid5: device sdg operational as raid disk 3 [ 1189.307975] raid5: device sdf operational as raid disk 2 [ 1189.308053] raid5: device sde operational as raid disk 1 [ 1189.308124] raid5: device sdd operational as raid disk 0 [ 1189.309007] raid5: allocated 8490kB for md1 [ 1189.309106] 7: w=1 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309178] 6: w=2 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309249] 5: w=3 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309320] 4: w=4 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309402] 3: w=5 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309488] 2: w=6 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309560] 1: w=7 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309631] 0: w=8 pa=0 pr=8 m=1 a=2 r=8 op1=0 op2=0 [ 1189.309704] raid5: raid level 5 set md1 active with 8 out of 8 devices, algorithm 2 [ 1189.309793] RAID5 conf printout: [ 1189.309871] --- rd:8 wd:8 [ 1189.309952] disk 0, o:1, dev:sdd [ 1189.310020] disk 1, o:1, dev:sde [ 1189.310088] disk 2, o:1, dev:sdf [ 1189.310155] disk 3, o:1, dev:sdg [ 1189.310223] disk 4, o:1, dev:sdh [ 1189.310290] disk 5, o:1, dev:sdi [ 1189.310374] disk 6, o:1, dev:sdj [ 1189.310452] disk 7, o:1, dev:sdk [ 1189.310554] md1: detected capacity change from 0 to 1120292569088 [ 1189.310798] md1: unknown partition table [ 1189.316651] md: md1 switched to read-write mode. [ 1189.316769] md: resync of RAID array md1 [ 1189.316841] md: minimum _guaranteed_ speed: 1000 KB/sec/disk. [ 1189.316913] md: using maximum available idle IO bandwidth (but not more than 200000 KB/sec) for resync. [ 1189.317016] md: using 128k window, over a total of 156290816 blocks. [ 1284.699817] xfs_db[7994]: segfault at 40 ip 00007f70c0b364aa sp 00007fff884bea30 error 4 in libpthread-2.7.so[7f70c0b2e000+16000] [ 1296.888175] md: bind<sdl> [ 1297.219915] md: bind<sdm> [ 1297.276953] md: raid0 personality registered for level 0 [ 1297.277236] raid0: looking at sdm [ 1297.277325] raid0: comparing sdm(976772864) [ 1297.277431] with sdm(976772864) [ 1297.277586] raid0: END [ 1297.277667] raid0: ==> UNIQUE [ 1297.277773] raid0: 1 zones [ 1297.284951] raid0: looking at sdl [ 1297.285020] raid0: comparing sdl(976772864) [ 1297.285075] with sdm(976772864) [ 1297.285232] raid0: EQUAL [ 1297.285300] raid0: FINAL 1 zones [ 1297.285374] raid0: done. [ 1297.285443] raid0 : md_size is 1953545728 sectors. [ 1297.285513] ******* md2 configuration ********* [ 1297.285613] zone0=[sdl/sdm/] [ 1297.285823] zone offset=0kb device offset=0kb size=976772864kb [ 1297.285897] ********************************** [ 1297.285898] [ 1297.286080] md2: detected capacity change from 0 to 1000215412736 [ 1297.288874] md2: unknown partition table [ 1342.746487] xfs_db[9907]: segfault at 40 ip 00007f164988d4aa sp 00007fffcea0bc30 error 4 in libpthread-2.7.so[7f1649885000+16000] [ 1834.791615] ------------[ cut here ]------------ [ 1834.791722] WARNING: at /tmp/buildd/linux-2.6-2.6.32/debian/build/source_amd64_none/drivers/ata/libata-core.c:5186 ata_qc_issue+0x10a/0x347 [libata]() [ 1834.791823] Hardware name: X7DWU [ 1834.791890] Modules linked in: raid0 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx iscsi_trgt crc32c nfsd lockd nfs_acl auth_rpcgss sunrpc exportfs coretemp w83627hf w83793 hwmon_vid loop netconsole configfs i2c_i801 evdev rng_core i2c_core ioatdma uhci_hcd ehci_hcd container usbcore nls_base i5k_amb snd_pcsp snd_pcm snd_timer snd soundcore snd_page_alloc i5400_edac edac_core button processor shpchp pci_hotplug dm_mirror dm_region_hash dm_log dm_snapshot dm_mod raid10 raid1 md_mod thermal fan thermal_sys mvsas libsas scsi_transport_sas sata_mv e1000e igb dca ext3 jbd mbcache sd_mod crc_t10dif ata_piix libata scsi_mod [ 1834.795527] Pid: 3070, comm: smartd Not tainted 2.6.32-bpo.2-amd64 #1 [ 1834.795527] Call Trace: [ 1834.795527] [<ffffffffa0034129>] ? ata_qc_issue+0x10a/0x347 [libata] [ 1834.795527] [<ffffffffa0034129>] ? ata_qc_issue+0x10a/0x347 [libata] [ 1834.795527] [<ffffffff8104dbe4>] ? warn_slowpath_common+0x77/0xa3 [ 1834.795527] [<ffffffffa0038471>] ? ata_scsi_pass_thru+0x0/0x238 [libata] [ 1834.795527] [<ffffffffa0034129>] ? ata_qc_issue+0x10a/0x347 [libata] [ 1834.795527] [<ffffffffa0038471>] ? ata_scsi_pass_thru+0x0/0x238 [libata] [ 1834.795527] [<ffffffffa00008a5>] ? scsi_done+0x0/0xc [scsi_mod] [ 1834.795527] [<ffffffffa003966a>] ? __ata_scsi_queuecmd+0x185/0x1dc [libata] [ 1834.795527] [<ffffffffa00008a5>] ? scsi_done+0x0/0xc [scsi_mod] [ 1834.795527] [<ffffffffa010ad48>] ? sas_queuecommand+0x93/0x283 [libsas] [ 1834.795527] [<ffffffffa0000b77>] ? scsi_dispatch_cmd+0x1c0/0x23c [scsi_mod] [ 1834.795527] [<ffffffffa0006325>] ? scsi_request_fn+0x4be/0x506 [scsi_mod] [ 1834.795527] [<ffffffffa000620c>] ? scsi_request_fn+0x3a5/0x506 [scsi_mod] [ 1834.795527] [<ffffffff81177ba0>] ? __blk_run_queue+0x35/0x66 [ 1834.795527] [<ffffffff8116f914>] ? elv_insert+0xad/0x260 [ 1834.795527] [<ffffffff8117af74>] ? blk_execute_rq_nowait+0x5d/0x89 [ 1834.795527] [<ffffffff8117b035>] ? blk_execute_rq+0x95/0xd0 [ 1834.795527] [<ffffffff81177077>] ? __freed_request+0x26/0x82 [ 1834.795527] [<ffffffff811770f6>] ? freed_request+0x23/0x41 [ 1834.795527] [<ffffffff81055efe>] ? capable+0x22/0x41 [ 1834.795527] [<ffffffff8117e1c1>] ? sg_io+0x280/0x3b5 [ 1834.795527] [<ffffffff8104a182>] ? try_to_wake_up+0x249/0x259 [ 1834.795527] [<ffffffff8117e7f5>] ? scsi_cmd_ioctl+0x217/0x3f2 [ 1834.795527] [<ffffffff8103a7a5>] ? scale_rt_power+0x1f/0x64 [ 1834.795527] [<ffffffff81188057>] ? kobject_get+0x12/0x17 [ 1834.795527] [<ffffffff8117ce78>] ? get_disk+0x95/0xb4 [ 1834.795527] [<ffffffffa0079a7e>] ? sd_ioctl+0x9d/0xcb [sd_mod] [ 1834.795527] [<ffffffff8117c1e9>] ? __blkdev_driver_ioctl+0x69/0x7e [ 1834.795527] [<ffffffff8117c9e4>] ? blkdev_ioctl+0x7e6/0x836 [ 1834.795527] [<ffffffff81110e93>] ? blkdev_open+0x0/0x96 [ 1834.795527] [<ffffffff81110efa>] ? blkdev_open+0x67/0x96 [ 1834.795527] [<ffffffff810ebc59>] ? __dentry_open+0x1c4/0x2bf [ 1834.795527] [<ffffffff810f729a>] ? do_filp_open+0x4c4/0x92b [ 1834.795527] [<ffffffff8110fcce>] ? block_ioctl+0x38/0x3c [ 1834.795527] [<ffffffff810f8ede>] ? vfs_ioctl+0x21/0x6c [ 1834.795527] [<ffffffff810f942c>] ? do_vfs_ioctl+0x48d/0x4cb [ 1834.795527] [<ffffffff810e4405>] ? virt_to_head_page+0x9/0x2b [ 1834.795527] [<ffffffff810f94bb>] ? sys_ioctl+0x51/0x70 [ 1834.795527] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [ 1834.795527] ---[ end trace f12657df187e0997 ]---
