[DRBD-user] lots of "drbd_md_sync_page_io" in kernel log since 3.15 kernel

Thomas merlin at liao.homelinux.org
Fri Jul 4 18:50:03 CEST 2014

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


Hello,

since the update to kernel version 3.15 I get lots of messages in the kernel log.

[Fri Jul  4 18:37:40 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339372992s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:37:40 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373000s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:37:40 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373008s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:37:43 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373016s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:37:56 2014] block drbd0: meta_data io: kworker/u49:1 [8142]:drbd_md_sync_page_io(,2339373024s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:37:56 2014] block drbd0: meta_data io: kworker/u49:1 [8142]:drbd_md_sync_page_io(,2339373032s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:10 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373040s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:10 2014] block drbd0: meta_data io: kworker/u49:1 [8142]:drbd_md_sync_page_io(,2339372984s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:10 2014] block drbd0: meta_data io: kworker/u49:1 [8142]:drbd_md_sync_page_io(,2339372992s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:10 2014] block drbd0: meta_data io: kworker/u49:1 [8142]:drbd_md_sync_page_io(,2339373000s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:28 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373008s,WRITE) _al_write_transaction+0x4b5/0x820
[Fri Jul  4 18:38:28 2014] block drbd0: meta_data io: kworker/u49:2 [8371]:drbd_md_sync_page_io(,2339373016s,WRITE) _al_write_transaction+0x4b5/0x820

The userland tools are in version 8.4.3.

It doesn't seem to affect functionality but it's still irritating to have the log flooded with these messages.

Does anyone know why these messages appear?

Thank you very much!

Thomas



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