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List:       drbd-user
Subject:    [DRBD-user] BAD! sector after sync
From:       "Tobias Fischer" <tobyfi () gmail ! com>
Date:       2015-06-17 18:23:34
Message-ID: 9AB474B9E7DD46EF9B4FDD9A38222CA1 () Hawaii
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Just earlier, I noticed that the secondary DRBD host ended up being 
"standalone", after syncing, and found this message in the syslog:

block drbd1: Began resync as SyncTarget (will sync 45716 KB [11429 bits 
set]).
block drbd1: BAD! sector=62193408s enr=1897 rs_left=-4 rs_failed=0 count=32
Pid: 9908, comm: drbd1_asender Not tainted 3.2.0-76-generic #111-Ubuntu
Call Trace:
[<ffffffffa013eb23>] drbd_try_clear_on_disk_bm+0x133/0x310 [drbd]
[<ffffffffa01408af>] __drbd_set_in_sync+0x18f/0x340 [drbd]
[<ffffffffa012fe28>] e_end_resync_block+0x78/0x100 [drbd]
[<ffffffffa0136495>] drbd_process_done_ee+0x105/0x150 [drbd]
[<ffffffffa013a514>] drbd_asender+0xf4/0x600 [drbd]
[<ffffffffa0142180>] ? drbd_open+0xb0/0xb0 [drbd]
[<ffffffffa01421e4>] drbd_thread_setup+0x64/0xf0 [drbd]
[<ffffffffa0142180>] ? drbd_open+0xb0/0xb0 [drbd]
[<ffffffff8108b96c>] kthread+0x8c/0xa0
[<ffffffff8166ef74>] kernel_thread_helper+0x4/0x10
[<ffffffff8108b8e0>] ? flush_kthread_worker+0xa0/0xa0
[<ffffffff8166ef70>] ? gs_change+0x13/0x13
block drbd1: peer( Primary -> Unknown ) conn( SyncTarget -> Disconnecting ) 
pdsk( UpToDate -> DUnknown )
block drbd1: asender terminated
block drbd1: Terminating drbd1_asender
block drbd1: bitmap WRITE of 1 pages took 0 jiffies
block drbd1: 35 MB (8941 bits) marked out-of-sync by on disk bit-map.
block drbd1: Connection closed
block drbd1: conn( Disconnecting -> StandAlone )
block drbd1: receiver terminated
block drbd1: Terminating drbd1_receiver

Restarting the synchronisation with "drbdadm connect"  seemed to work, at 
least it ran to 100% and said "up to date" again. Any idea what's happening 
here? Do I have to worry about data consistency? 

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