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