mdadm: sending ioctl 800c0910 to a partition!

mdadm: sending ioctl 800c0910 to a partition!

[Mark Knecht]

Wondering if I should be concerned about these new messages?

Everything seems to be working fine. Found a bug report at RedHat
suggesting it's not an mdadm problem but thought maybe I should report
it anyway.

Thanks,
Mark

k2 ~ # uname -a
Linux k2 3.2.12-gentoo #1 SMP PREEMPT Thu Apr 12 16:26:36 PDT 2012
x86_64 Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz GenuineIntel GNU/Linux
k2 ~ #

[    9.354769] scsi_verify_blk_ioctl: 368 callbacks suppressed
[    9.354773] mdadm: sending ioctl 1261 to a partition!
[    9.354776] mdadm: sending ioctl 1261 to a partition!
[    9.354918] mdadm: sending ioctl 800c0910 to a partition!
[    9.354921] mdadm: sending ioctl 800c0910 to a partition!
[    9.354939] mdadm: sending ioctl 800c0910 to a partition!
[    9.354942] mdadm: sending ioctl 800c0910 to a partition!
[    9.354988] mdadm: sending ioctl 800c0910 to a partition!
[    9.354991] mdadm: sending ioctl 800c0910 to a partition!
[    9.355004] mdadm: sending ioctl 800c0910 to a partition!
[    9.355007] mdadm: sending ioctl 800c0910 to a partition!
[    9.913580] EXT3-fs (md3): using internal journal
[   10.067489] kjournald starting.  Commit interval 5 seconds
[   10.092612] EXT3-fs (md127): using internal journal
[   10.092619] EXT3-fs (md127): mounted filesystem with writeback data mode
[   11.724865] Adding 4200992k swap on /dev/sda2.  Priority:-1
extents:1 across:4200992k
[   11.731532] Adding 4200992k swap on /dev/sdb2.  Priority:-2
extents:1 across:4200992k
[   11.743473] Adding 4200992k swap on /dev/sdc2.  Priority:-3
extents:1 across:4200992k


mark@k2 ~ $ cat /proc/mdstat
Personalities : [raid0] [raid1]
md127 : active raid1 sdc6[1] sdb6[0]
      327740905 blocks super 1.2 [2/2] [UU]

md126 : active raid1 sdb5[0] sdc5[1]
      31463203 blocks super 1.1 [2/2] [UU]

md3 : active raid1 sdc3[1] sdb3[0]
      41953664 blocks [2/2] [UU]

unused devices: <none>
mark@k2 ~ $

Re: mdadm: sending ioctl 800c0910 to a partition!

[Jack Wang]

I think you shouldn't concern this, just a annoy waining.

Jack

2012/4/18 Mark Knecht <markknecht@gmail.com>:
> Wondering if I should be concerned about these new messages?
>
> Everything seems to be working fine. Found a bug report at RedHat
> suggesting it's not an mdadm problem but thought maybe I should report
> it anyway.
>
> Thanks,
> Mark
>
> k2 ~ # uname -a
> Linux k2 3.2.12-gentoo #1 SMP PREEMPT Thu Apr 12 16:26:36 PDT 2012
> x86_64 Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz GenuineIntel GNU/Linux
> k2 ~ #
>
> [    9.354769] scsi_verify_blk_ioctl: 368 callbacks suppressed
> [    9.354773] mdadm: sending ioctl 1261 to a partition!
> [    9.354776] mdadm: sending ioctl 1261 to a partition!
> [    9.354918] mdadm: sending ioctl 800c0910 to a partition!
> [    9.354921] mdadm: sending ioctl 800c0910 to a partition!
> [    9.354939] mdadm: sending ioctl 800c0910 to a partition!
> [    9.354942] mdadm: sending ioctl 800c0910 to a partition!
> [    9.354988] mdadm: sending ioctl 800c0910 to a partition!
> [    9.354991] mdadm: sending ioctl 800c0910 to a partition!
> [    9.355004] mdadm: sending ioctl 800c0910 to a partition!
> [    9.355007] mdadm: sending ioctl 800c0910 to a partition!
> [    9.913580] EXT3-fs (md3): using internal journal
> [   10.067489] kjournald starting.  Commit interval 5 seconds
> [   10.092612] EXT3-fs (md127): using internal journal
> [   10.092619] EXT3-fs (md127): mounted filesystem with writeback data mode
> [   11.724865] Adding 4200992k swap on /dev/sda2.  Priority:-1
> extents:1 across:4200992k
> [   11.731532] Adding 4200992k swap on /dev/sdb2.  Priority:-2
> extents:1 across:4200992k
> [   11.743473] Adding 4200992k swap on /dev/sdc2.  Priority:-3
> extents:1 across:4200992k
>
>
> mark@k2 ~ $ cat /proc/mdstat
> Personalities : [raid0] [raid1]
> md127 : active raid1 sdc6[1] sdb6[0]
>      327740905 blocks super 1.2 [2/2] [UU]
>
> md126 : active raid1 sdb5[0] sdc5[1]
>      31463203 blocks super 1.1 [2/2] [UU]
>
> md3 : active raid1 sdc3[1] sdb3[0]
>      41953664 blocks [2/2] [UU]
>
> unused devices: <none>
> mark@k2 ~ $
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Re: mdadm: sending ioctl 800c0910 to a partition!

[Johannes Truschnigg]

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On Tue, Apr 17, 2012 at 08:48:06PM -0700, Mark Knecht wrote:
> Wondering if I should be concerned about these new messages?
> 
> [...]

Not a reason for concern; this was introduced into the kernel to detect (and
then hopefully fix) misbehaving userspace, afaik. Having these messages in the
debug ringbuffer is annyoing for sure, but seeing it make its way into your
syslog is what really drove me a bit mad (esp. as Proxmox seems to poll block
devices in a weird way, which generated such messages at a rate of several
dozen entries per minute...).

I made rsyslog (on Debian Squeeze) discard the kind of message by introducing
a regex filter to its chain of rules by creating a file
"/etc/rsyslog.d/zz-local.conf" with the following lines as its content:

:msg, regex, ".*sending ioctl [0-9][0-9]* to a partition.*" ~
:msg, regex, ".*scsi_verify_blk_ioctl: [0-9][0-9]* callbacks suppressed.*" ~

Maybe that's helpful for someone who doesn't like getting their logs spammed
with pretty meaningless noise, too.

-- 
with best regards:
- Johannes Truschnigg ( johannes@truschnigg.info )

www:   http://johannes.truschnigg.info/
phone: +43 650 2 133337
xmpp:  johannes@truschnigg.info

Please do not bother me with HTML-email or attachments. Thank you.

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