New: /etc/fstab: impossible to disable relatime
https://bugzilla.kernel.org/show_bug.cgi?id=114621
Bug ID: 114621
Summary: /etc/fstab: impossible to disable relatime
Product: File System
Version: 2.5
Kernel Version: 4.1.15-pv
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ext4
Assignee: [email protected]
Reporter: [email protected]
Regression: No/etc/fstab: no entry relatime.
But the partitions are mounted with option relatime.
But this causes an error in dmesg.
NCQ is disabled for a SSD and a HDD.
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[ 5.640926] ata2.00: ATA-9: WDC WD4003FZEX-00Z4SA0, 01.01A01, max UDMA/133 [ 5.640931] ata2.00: 7814037168 sectors, multi 16: LBA48 NCQ (depth 31/32), AA [ 5.641470] ata2.00: configured for UDMA/133 [ 5.642179] ata3.00: ATAPI: HL-DT-ST BD-RE BH16NS55, 1.01, max UDMA/133 [ 5.642252] ata1.00: supports DRM functions and may not be fully accessible [ 5.642296] ata1.00: READ LOG DMA EXT failed, trying unqueued [ 5.642320] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1 [ 5.642323] ata1.00: ATA-9: Samsung SSD 850 PRO 512GB, EXM01B6Q, max UDMA/133 [ 5.642326] ata1.00: 1000215216 sectors, multi 1: LBA48 NCQ (depth 31/32), AA [ 5.642542] ata1.00: supports DRM functions and may not be fully accessible [ 5.642580] ata1.00: failed to get NCQ Send/Recv Log Emask 0x1 [ 5.642632] ata1.00: configured for UDMA/133
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[Bug 114621] /etc/fstab: impossible to disable relatime
https://bugzilla.kernel.org/show_bug.cgi?id=114621
Theodore Tso <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |[email protected]
Resolution|--- |INVALID--- Comment #1 from Theodore Tso <[email protected]> --- These errors have nothing to do with relatime.
You can control whether the last access time is updated on every single read (which is a performance disaster, but required by POSIX) using the mount option strictatime. You can also set the last access time to never be updated using
the mount option noatime. The default, relatime will update atime if it is
more than 24 hours out of date, or if atime < mtime.
None of this has anything to do with the NCQ error, which is coming from the device, and not the file system.
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[Bug 114621] /etc/fstab: impossible to disable relatime
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=114621
Armin Mohring <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|INVALID |------ Comment #2 from Armin Mohring <[email protected]> --- I have disabled relatime in fstab.
And this error did not occur.
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[Bug 114621] /etc/fstab: impossible to disable relatime
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=114621
Theodore Tso <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |INVALID--- Comment #3 from Theodore Tso <[email protected]> ---
So number one this is a distro kernel, so I suggest you ask the SuSE help desk for support.
Number 2, I suggest you give exact reproduction details --- e.g., what was in
your fstab before and after. And then try reproducing this on an upstream
kernel if you want support on bugzilla.kernel.org.
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