[DRBD-user] alloc_ee: bio_add_page failed

Thilo Uttendorfer t.uttendorfer at linux-ag.com
Fri May 27 14:00:31 CEST 2011

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On Friday 27 May 2011 at 11:51:20, Lars Ellenberg wrote:
> On Thu, May 26, 2011 at 06:51:45PM +0200, Thilo Uttendorfer wrote:
> >
> > we have on one of our systems a strange DRBD problem. One DRBD resource
> > has lots of "bio_add_page failed" errors which leads to constant resyncs
> > for about one hour yesterday. Today the "bio_add_page failed" errors
> > occured again. All other (10) resources (same configuration) don't have
> > this problem. On top of the DRBD-Device runs a KVM-guests, the
> > backing-device is a LVM partition.
> >
> > host-z1 is primary, host-z2 is secondary. kern.log on host-z2 looks like
> > this:
> >
> > May 25 18:00:16 host-z2 kernel: [77255.104705] block drbd8: alloc_ee:
> > bio_add_page(s=13979095,data_size=8192,ds=4096) failed
>
> You are using the "use-bmbv" setting?

yes, we've configured it in the "common"-section for all resources. 

> Either upgrade your DRBD (newer then 8.3.7 allows us to fall back to
> multiple bios in that case), or disable that setting.

ok, we'll disable it in that case.


Thanks a lot!
Thilo



-- 
Thilo Uttendorfer
Linux Information Systems AG
Putzbrunner Str. 71, 81739 München

Fon: +49 89 993412-11, Fax: +49 89 993412-99
t.uttendorfer at linux-ag.com, http://www.linux-ag.com



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