* [Bug 36722] New: TRIM support is broken for Crucial M4 drives
@ 2011-06-05 15:05 bugzilla-daemon
2011-06-06 9:04 ` [Bug 36722] " bugzilla-daemon
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-06-05 15:05 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=36722
Summary: TRIM support is broken for Crucial M4 drives
Product: File System
Version: 2.5
Kernel Version: 2.6.38.8
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ext4
AssignedTo: fs_ext4@kernel-bugs.osdl.org
ReportedBy: kernel-bugs.dev1world@spamgourmet.com
Regression: No
Created an attachment (id=60842)
--> (https://bugzilla.kernel.org/attachment.cgi?id=60842)
dmesg output
The TRIM is disabled as per the following messages:
# dmesg | grep "discard not"
[ 18.614000] EXT4-fs warning (device sdi8): release_blocks_on_commit:2674:
discard not supported, disabling
[42486.763000] EXT4-fs warning (device sdi11): release_blocks_on_commit:2674:
discard not supported, disabling
but TRIM support is there:
# hdparm -I /dev/sdi | grep TRIM
* Data Set Management TRIM supported (limit 8 blocks)
* Deterministic read data after TRIM
The drive is on this controller and not part of any RAID:
# lspci | grep LSI
04:00.0 Serial Attached SCSI controller: LSI Logic / Symbios Logic SAS2008
PCI-Express Fusion-MPT SAS-2 [Falcon] (rev 03)
The dmesg is attached.
Can someone also say what this message means:
[42087.056000] EXT4-fs (sdi11): Unaligned AIO/DIO on inode 654340 by
VirtualBox; performance will be poor.
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* [Bug 36722] TRIM support is broken for Crucial M4 drives
2011-06-05 15:05 [Bug 36722] New: TRIM support is broken for Crucial M4 drives bugzilla-daemon
@ 2011-06-06 9:04 ` bugzilla-daemon
2011-06-06 14:43 ` bugzilla-daemon
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-06-06 9:04 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=36722
--- Comment #1 from Lukas Czerner <lczerner@redhat.com> 2011-06-06 09:04:51 ---
Created an attachment (id=60892)
--> (https://bugzilla.kernel.org/attachment.cgi?id=60892)
BLKDISCARD testing program
Hi,
thanks for reporting! Could you please provide the output of this simple test
program ? Also the output of the following command.
grep $ /sys/block/sda/queue/discard_*
What kernel version are you using ?
Thanks!
-Lukas
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* [Bug 36722] TRIM support is broken for Crucial M4 drives
2011-06-05 15:05 [Bug 36722] New: TRIM support is broken for Crucial M4 drives bugzilla-daemon
2011-06-06 9:04 ` [Bug 36722] " bugzilla-daemon
@ 2011-06-06 14:43 ` bugzilla-daemon
2011-06-06 17:43 ` bugzilla-daemon
2012-08-24 13:01 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-06-06 14:43 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=36722
--- Comment #2 from devsk <kernel-bugs.dev1world@spamgourmet.com> 2011-06-06 14:41:55 ---
I am on 2.6.38.8
$ grep $ /sys/block/sdk/queue/discard_*
/sys/block/sdk/queue/discard_granularity:0
/sys/block/sdk/queue/discard_max_bytes:0
/sys/block/sdk/queue/discard_zeroes_data:0
# /tmp/discard /dev/sdk5
discard: Operation not supported
Is this because of the LSI card not passing the TRIM onto the drive? Why does
hdparm report that TRIM is supported then?
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* [Bug 36722] TRIM support is broken for Crucial M4 drives
2011-06-05 15:05 [Bug 36722] New: TRIM support is broken for Crucial M4 drives bugzilla-daemon
2011-06-06 9:04 ` [Bug 36722] " bugzilla-daemon
2011-06-06 14:43 ` bugzilla-daemon
@ 2011-06-06 17:43 ` bugzilla-daemon
2012-08-24 13:01 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-06-06 17:43 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=36722
Martin K. Petersen <mkp@mkp.net> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mkp@mkp.net
--- Comment #3 from Martin K. Petersen <mkp@mkp.net> 2011-06-06 17:43:15 ---
hdparm asks the drive directly whereas the LSI card must be able to translate
from SCSI to ATA commands. None the LSI cards I have support that functionality
yet.
You can try sending us the output of:
# sg_readcap -l /dev/sdk
# sg_vpd -p thpv /dev/sdk
--
Martin K. Petersen Oracle Linux Engineering
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* [Bug 36722] TRIM support is broken for Crucial M4 drives
2011-06-05 15:05 [Bug 36722] New: TRIM support is broken for Crucial M4 drives bugzilla-daemon
` (2 preceding siblings ...)
2011-06-06 17:43 ` bugzilla-daemon
@ 2012-08-24 13:01 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2012-08-24 13:01 UTC (permalink / raw)
To: linux-ext4
https://bugzilla.kernel.org/show_bug.cgi?id=36722
Alan <alan@lxorguk.ukuu.org.uk> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |alan@lxorguk.ukuu.org.uk
Resolution| |DOCUMENTED
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2011-06-05 15:05 [Bug 36722] New: TRIM support is broken for Crucial M4 drives bugzilla-daemon
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