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Date: Tue, 09 Jan 2007 19:58:22 -0300 From: Pablo Sebastian Greco <lkml@...agreco.com.ar> To: Tejun Heo <htejun@...il.com> CC: linux-kernel@...r.kernel.org Subject: Re: SATA problems Pablo Sebastian Greco wrote: > Tejun Heo wrote: >> Pablo Sebastian Greco wrote: >> >>> After an uptime of 13:34 under heavy load and no errors, I'm pretty >>> sure your patch is correct. Is there a way to backport this to >>> 2.6.18.x? >>> >> >> I forgot this (even though I implemented it) but you can turn off NCQ by >> doing the following. >> >> # echo 1 > /sys/block/sdX/device/queue_depth >> >> Can you put the seagate drive under load to verify that it's the samsung >> drive's problem not the controller's? >> >> >>> Just an off topic question, does anyone know why I get so uneven IRQ >>> handling on 2.6.19-20 and almost perfect on 2.6.20-rc2-mm1? >>> >> >> I dunno. You have much better chance of getting a useful answer by >> asking it on a separate thread with proper subject line. People usualyl >> screen threads by subject. There are just too many message in LKML for >> anyone to follow all the message. >> >> Thanks. >> >> > Guess I spoke too soon :( > Today I found this > Jan 8 04:01:40 squid kernel: ata2.00: exception Emask 0x0 SAct 0x0 > SErr 0x0 action 0x2 frozen > Jan 8 04:01:40 squid kernel: ata2.00: cmd > 25/00:08:49:ee:e8/00:00:16:00:00/e0 tag 0 cdb 0x0 data 4096 in > Jan 8 04:01:40 squid kernel: res > 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) > Jan 8 04:01:40 squid kernel: ata2: soft resetting port > Jan 8 04:01:40 squid kernel: ata2: softreset failed (port busy but > CLO unavailable) > Jan 8 04:01:40 squid kernel: ata2: softreset failed, retrying in 5 secs > Jan 8 04:01:45 squid kernel: ata2: hard resetting port > Jan 8 04:01:53 squid kernel: ata2: port is slow to respond, please be > patient (Status 0x80) > Jan 8 04:02:16 squid kernel: ata2: port failed to respond (30 secs, > Status 0x80) > Jan 8 04:02:16 squid kernel: ata2: COMRESET failed (device not ready) > Jan 8 04:02:16 squid kernel: ata2: hardreset failed, retrying in 5 secs > Jan 8 04:02:21 squid kernel: ata2: hard resetting port > Jan 8 04:02:21 squid kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 > SControl 300) > Jan 8 04:02:21 squid kernel: ata2.00: configured for UDMA/133 > Jan 8 04:02:21 squid kernel: ata2: EH complete > Jan 8 04:02:21 squid kernel: SCSI device sdb: 488397168 512-byte hdwr > sectors (250059 MB) > Jan 8 04:02:21 squid kernel: sdb: Write Protect is off > Jan 8 04:02:21 squid kernel: SCSI device sdb: write cache: enabled, > read cache: enabled, doesn't support DPO or FUA > #uptime > 10:10:12 up 3 days, 22:48, 1 user, load average: 0.22, 0.19, 0.18 > 4 am is the lowest load ever, so I don't get it. > I've found two differences with older errors > SAct is now 0x0 when before was 0x7fffffff > And the cmd/res used to be really long, now it's just one command > About heavy loading the seagate, I've tested as suggested on other > thread dd if=<drive> of=/dev/null > for all 4 drives simultaneously, on top of usual load, and all was > perfect with current kernel (2.6.20-rc3 + blacklist). > Don't know what to do to help > > Thanks. > Pablo. > - > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > And now this :( , still running rc3+blacklist without rebooting Jan 9 05:30:36 squid kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Jan 9 05:30:36 squid kernel: ata2.00: cmd c8/00:08:87:83:85/00:00:00:00:00/e2 tag 0 cdb 0x0 data 4096 in Jan 9 05:30:36 squid kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Jan 9 05:30:36 squid kernel: ata2: soft resetting port Jan 9 05:30:36 squid kernel: ata2: softreset failed (port busy but CLO unavailable) Jan 9 05:30:36 squid kernel: ata2: softreset failed, retrying in 5 secs Jan 9 05:30:41 squid kernel: ata2: hard resetting port Jan 9 05:30:49 squid kernel: ata2: port is slow to respond, please be patient (Status 0x80) Jan 9 05:31:12 squid kernel: ata2: port failed to respond (30 secs, Status 0x80) Jan 9 05:31:12 squid kernel: ata2: COMRESET failed (device not ready) Jan 9 05:31:12 squid kernel: ata2: hardreset failed, retrying in 5 secs Jan 9 05:31:17 squid kernel: ata2: hard resetting port Jan 9 05:31:17 squid kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 9 05:31:17 squid kernel: ata2.00: configured for UDMA/133 Jan 9 05:31:17 squid kernel: ata2: EH complete Jan 9 05:31:17 squid kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) Jan 9 05:31:17 squid kernel: sdb: Write Protect is off Jan 9 05:31:17 squid kernel: SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Jan 9 05:32:17 squid kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Jan 9 05:32:17 squid kernel: ata2.00: cmd c8/00:08:37:ac:04/00:00:00:00:00/e0 tag 0 cdb 0x0 data 4096 in Jan 9 05:32:17 squid kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Jan 9 05:32:18 squid kernel: ata2: soft resetting port Jan 9 05:32:18 squid kernel: ata2: softreset failed (port busy but CLO unavailable) Jan 9 05:32:18 squid kernel: ata2: softreset failed, retrying in 5 secs Jan 9 05:32:23 squid kernel: ata2: hard resetting port Jan 9 05:32:30 squid kernel: ata2: port is slow to respond, please be patient (Status 0x80) Jan 9 05:32:53 squid kernel: ata2: port failed to respond (30 secs, Status 0x80) Jan 9 05:32:53 squid kernel: ata2: COMRESET failed (device not ready) Jan 9 05:32:53 squid kernel: ata2: hardreset failed, retrying in 5 secs Jan 9 05:32:58 squid kernel: ata2: hard resetting port Jan 9 05:32:58 squid kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 9 05:32:58 squid kernel: ata2.00: configured for UDMA/133 Jan 9 05:32:58 squid kernel: ata2: EH complete Jan 9 05:33:58 squid kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Jan 9 05:33:58 squid kernel: ata2.00: cmd c8/00:08:37:ac:04/00:00:00:00:00/e0 tag 0 cdb 0x0 data 4096 in Jan 9 05:33:58 squid kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Jan 9 05:33:59 squid kernel: ata2: soft resetting port Jan 9 05:33:59 squid kernel: ata2: softreset failed (port busy but CLO unavailable) Jan 9 05:33:59 squid kernel: ata2: softreset failed, retrying in 5 secs Jan 9 05:34:04 squid kernel: ata2: hard resetting port Jan 9 05:34:11 squid kernel: ata2: port is slow to respond, please be patient (Status 0x80) Jan 9 05:34:34 squid kernel: ata2: port failed to respond (30 secs, Status 0x80) Jan 9 05:34:34 squid kernel: ata2: COMRESET failed (device not ready) Jan 9 05:34:34 squid kernel: ata2: hardreset failed, retrying in 5 secs Jan 9 05:34:39 squid kernel: ata2: hard resetting port Jan 9 05:34:39 squid kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 9 05:34:39 squid kernel: ata2.00: configured for UDMA/133 Jan 9 05:34:39 squid kernel: ata2: EH complete Jan 9 05:34:39 squid kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) Jan 9 05:34:39 squid kernel: sdb: Write Protect is off Jan 9 05:34:39 squid kernel: SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Jan 9 05:34:39 squid kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) Jan 9 05:34:39 squid kernel: sdb: Write Protect is off Jan 9 05:34:39 squid kernel: SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Jan 9 05:42:21 squid kernel: ata2.00: limiting speed to UDMA/100 Jan 9 05:42:21 squid kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Jan 9 05:42:21 squid kernel: ata2.00: cmd c8/00:08:cf:63:8b/00:00:00:00:00/ee tag 0 cdb 0x0 data 4096 in Jan 9 05:42:21 squid kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) Jan 9 05:42:22 squid kernel: ata2: soft resetting port Jan 9 05:42:22 squid kernel: ata2: softreset failed (port busy but CLO unavailable) Jan 9 05:42:22 squid kernel: ata2: softreset failed, retrying in 5 secs Jan 9 05:42:27 squid kernel: ata2: hard resetting port Jan 9 05:42:34 squid kernel: ata2: port is slow to respond, please be patient (Status 0x80) Jan 9 05:42:57 squid kernel: ata2: port failed to respond (30 secs, Status 0x80) Jan 9 05:42:57 squid kernel: ata2: COMRESET failed (device not ready) Jan 9 05:42:57 squid kernel: ata2: hardreset failed, retrying in 5 secs Jan 9 05:43:02 squid kernel: ata2: hard resetting port Jan 9 05:43:02 squid kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) Jan 9 05:43:02 squid kernel: ata2.00: configured for UDMA/100 Jan 9 05:43:02 squid kernel: ata2: EH complete Jan 9 05:43:02 squid kernel: SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB) Jan 9 05:43:02 squid kernel: sdb: Write Protect is off Jan 9 05:43:02 squid kernel: SCSI device sdb: write cache: enabled, read cache: enabled, doesn't support DPO or FUA Should I try a different kernel? rc3-mm1 or rc4? Thanks. Pablo. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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