Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
As far as ocfs2 is concerned, bio_add_page() is failing. The one thing that
springs to mind is that o2hb sets bio->bi_sector to 512 bytes and not
the block size.
Kilian CAVALOTTI wrote:
> Hi all,
>
> I'm new to OCFS2, but not so new to DRBD. I'd like to use the new
> primary/primary feature of DRBDv8 to create a shared storage space and
> concurrently access it from multiple clients, using OCFS2.
>
> I configured two hosts with DRBD, allowed two primaries, and successfully
> made each partition primary.
>
> # cat /proc/drbd
> version: 8.0pre4 (api:84/proto:82)
> SVN Revision: 2375M build by root at moby, 2006-08-17 15:54:17
> 0: cs:Connected st:Primary/Primary ds:UpToDate/UpToDate r---
> ns:0 nr:1398278 dw:1398278 dr:98 al:0 bm:1895 lo:0 pe:0 ua:0 ap:0
> resync: used:0/7 hits:86007 misses:1381 starving:0 dirty:0
> changed:1381
> act_log: used:0/257 hits:0 misses:0 starving:0 dirty:0 changed:0
> 1: cs:Unconfigured
>
> I tried to format the volume with a traditionnal filesystem, and
> successfully mounted it on both nodes.
>
> I then tried with ocfs2. On the first node, mkfs and mount went without a
> hitch, but on the second one, I systematically get an error when I try to
> do anything on the volume (fsck'ing, starting ocfs2-heartbeat, mounting,
> etc.). dmesg shows the following,
>
> drbd0: role( Secondary -> Primary )
> drbd0: Writing meta data super block now.
> (6672,0):o2hb_setup_one_bio:290 ERROR: Error adding page to bio i = 1,
> vec_len = 4096, len = 0
> , start = 0
> (6672,0):o2hb_read_slots:385 ERROR: status = -5
> (6672,0):o2hb_populate_slot_data:1279 ERROR: status = -5
> (6672,0):o2hb_region_dev_write:1379 ERROR: status = -5
>
>
> It seems that the heartbeat process can't write to the device, for an
> unknown reason:
>
> open("/sys/kernel/config/cluster", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = 4
> fstat(4, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
> fcntl(4, F_SETFD, FD_CLOEXEC) = 0
> getdents64(4, /* 3 entries */, 4096) = 88
> getdents64(4, /* 0 entries */, 4096) = 0
> close(4) = 0
> mkdir("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135",
> 0755) = 0
> open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/block_bytes",
> O_WRONLY) = 4
> write(4, "512", 3) = 3
> close(4) = 0
> open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/start_block",
> O_WRONLY) = 4
> write(4, "2176", 4) = 4
> close(4) = 0
> open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/blocks",
> O_WRONLY) = 4
> write(4, "255", 3) = 3
> close(4) = 0
> open("/dev/drbd0", O_RDWR) = 4
> open("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135/dev",
> O_WRONLY) = 5
> write(5, "4", 1) = -1 EIO (Input/output error)
> close(5) = 0
> close(4) = 0
> rmdir("/sys/kernel/config/cluster/ocfs2_cluster/heartbeat/D6F76726AFE4472CBF0650A1FEF09135")
> = 0
> semop(0, 0x7fff930bfe30, 1) = 0
> close(3) = 0
> write(2, "mkfs.ocfs2", 10mkfs.ocfs2) = 10
> write(2, ": ", 2: ) = 2
> write(2, "I/O error on channel", 20I/O error on channel) = 20
> write(2, " ", 1 ) = 1
> write(2, "while initializing the dlm", 26while initializing the dlm) = 26
> write(2, "\r\n", 2
>
> I can't figure if it's a DRBD- or a OCFS2-related issue, and I'd take any
> enlightenment with gratitude.
>
> BTW, I use amd64, debian-provided 2.6.17 kernel, drbd8-module-source
> 8.0pre4-1 (I tried SVN trunk too), and ocfs2-tools 1.2.1-1.
>
> Thanks in advance,
>