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Re: Snapshots in kernel 2.6.19
by Brock, Anthony - NET
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I am also seeing similar behavior since upgrading from kernel version 2.6.16 to 2.6.20.6 last week:
# tail /var/log/kern.log
Apr 17 03:10:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 17 03:10:53 vs2 kernel: device-mapper: ioctl: unable to remove open device scg-bind-2_root
Apr 18 13:50:41 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:41 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:50 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:50 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:50 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:50 vs2 kernel: device-mapper: ioctl: error adding target to table
# uname -a
Linux vs2.mydomain.com 2.6.20.6-skas3-v8.2 #1 SMP Fri Apr 13 17:27:25 PDT 2007 i686 GNU/Linux
#
I would be very interested in seeing a patch that resolves this integrated into the mainline evms utilities for Debian.
Tony
> -----Original Message-----
> From: evms-devel-bounces@...
> [mailto:evms-devel-bounces@...] On Behalf
> Of Nuno Silva
> Sent: Tuesday, April 17, 2007 7:50 PM
> To: "Jürgen E. Fischer"
> Cc: evms-devel@...
> Subject: Re: [Evms-devel] Snapshots in kernel 2.6.19
>
> Jürgen E. Fischer wrote:
> > Hi there,
>
> Hello, Jürgen!
>
>
> > starting somewhere between 2.6.18 and 2.6.19 making
> snapshots stopped
> > working.
> >
> > The device mapper complains like this:
> >
> > device-mapper: table: 254:52: snapshot: requires exactly 4 arguments
> >
> > EVMS passes one argument more than expected. Apparently
> the evms patch
> > that actually supported the argument never made it into
> device mapper.
> >
> > Before 2.6.19 it was ignored, so I assume it's save to just drop it.
> > Attached a patch does that.
>
> Very, very nice. Thank you!
>
> I was beeing affected by that problem for a few weeks but
> couldn't solve
> the problem (gave up after a few tries because I don't like
> to mess with
> storage... Big responsability!). I've been testing this patch
> in a test
> server for some days and it looks good. No problems so far.
> Any comments?
>
> Anyway, I'd like the core team to bless this patch and maybe
> include it
> in a new release?
>
> Thanks again,
> Nuno Silva
>
>
>
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# tail /var/log/kern.log
Apr 17 03:10:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 17 03:10:53 vs2 kernel: device-mapper: ioctl: unable to remove open device scg-bind-2_root
Apr 18 13:50:41 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:41 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:41 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:50 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:50 vs2 kernel: device-mapper: ioctl: error adding target to table
Apr 18 13:50:50 vs2 kernel: device-mapper: table: 254:65: snapshot: requires exactly 4 arguments
Apr 18 13:50:50 vs2 kernel: device-mapper: ioctl: error adding target to table
# uname -a
Linux vs2.mydomain.com 2.6.20.6-skas3-v8.2 #1 SMP Fri Apr 13 17:27:25 PDT 2007 i686 GNU/Linux
#
I would be very interested in seeing a patch that resolves this integrated into the mainline evms utilities for Debian.
Tony
> -----Original Message-----
> From: evms-devel-bounces@...
> [mailto:evms-devel-bounces@...] On Behalf
> Of Nuno Silva
> Sent: Tuesday, April 17, 2007 7:50 PM
> To: "Jürgen E. Fischer"
> Cc: evms-devel@...
> Subject: Re: [Evms-devel] Snapshots in kernel 2.6.19
>
> Jürgen E. Fischer wrote:
> > Hi there,
>
> Hello, Jürgen!
>
>
> > starting somewhere between 2.6.18 and 2.6.19 making
> snapshots stopped
> > working.
> >
> > The device mapper complains like this:
> >
> > device-mapper: table: 254:52: snapshot: requires exactly 4 arguments
> >
> > EVMS passes one argument more than expected. Apparently
> the evms patch
> > that actually supported the argument never made it into
> device mapper.
> >
> > Before 2.6.19 it was ignored, so I assume it's save to just drop it.
> > Attached a patch does that.
>
> Very, very nice. Thank you!
>
> I was beeing affected by that problem for a few weeks but
> couldn't solve
> the problem (gave up after a few tries because I don't like
> to mess with
> storage... Big responsability!). I've been testing this patch
> in a test
> server for some days and it looks good. No problems so far.
> Any comments?
>
> Anyway, I'd like the core team to bless this patch and maybe
> include it
> in a new release?
>
> Thanks again,
> Nuno Silva
>
>
>
> --------------------------------------------------------------
> -----------
> This SF.net email is sponsored by DB2 Express
> Download DB2 Express C - the FREE version of DB2 express and take
> control of your XML. No limits. Just data. Click to get it now.
> http://sourceforge.net/powerbar/db2/
> _______________________________________________
> Evms-devel mailing list
> Evms-devel@...
> To subscribe/unsubscribe, please visit:
> https://lists.sourceforge.net/lists/listinfo/evms-devel
>
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Evms-devel mailing list
Evms-devel@...
To subscribe/unsubscribe, please visit:
https://lists.sourceforge.net/lists/listinfo/evms-devel
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