From: bugzilla-daemon@bugzilla.kernel.org
To: linux-scsi@vger.kernel.org
Subject: [Bug 118081] New: open-iscsi Ping timeout erro
Date: Thu, 12 May 2016 03:34:45 +0000 [thread overview]
Message-ID: <bug-118081-11613@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=118081
Bug ID: 118081
Summary: open-iscsi Ping timeout erro
Product: SCSI Drivers
Version: 2.5
Kernel Version: 4.4.7
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Other
Assignee: scsi_drivers-other@kernel-bugs.osdl.org
Reporter: liuzhengyuang521@gmail.com
Regression: No
Hi everyone:
I create a target using fileio as the backend storage on ARM64 server. The
initiator reported some errors showed bellow while perform iozone test.
[178444.145679] connection14:0: ping timeout of 5 secs expired, recv timeout
5, last rx 4339462894, last ping 4339464146, now 4339465400
[178444.145706] connection14:0: detected conn error (1011)
[178469.674313] connection14:0: detected conn error (1020)
[178504.420979] connection14:0: ping timeout of 5 secs expired, recv timeout
5, last rx 4339477953, last ping 4339479204, now 4339480456
[178504.421001] connection14:0: detected conn error (1011)
[178532.064262] connection14:0: detected conn error (1020)
[178564.584087] connection14:0: ping timeout of 5 secs expired, recv timeout
5, last rx 4339492980, last ping 4339494232, now 4339495484
..............................
I try to trace the function call of target iscsi. Then, I found the receiving
thread of target iscsi blocked at fd_execute_sync_cache -> vfs_fsync_range.
Further, vfs_fsync_range may takes more than 10 seconds to return,while
initiator Ping timeout would happened after 5 seconds. vfs_fsync_range was
call with the form vfs_fsync_range(fd_dev->fd_file, 0, LLONG_MAX, 1) every
times which means sync all device cache.
So, is this a bug?
How does Initiator send sync_cache scsi command?
Does it need to sync all device cache at once?
Any reply would be thankful.
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next reply other threads:[~2016-05-12 3:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-12 3:34 bugzilla-daemon [this message]
2016-05-13 16:19 ` [Bug 118081] New: open-iscsi Ping timeout erro Mike Christie
2016-05-24 7:05 ` Nicholas A. Bellinger
2016-05-13 16:20 ` [Bug 118081] " bugzilla-daemon
2016-05-17 3:46 ` bugzilla-daemon
2016-05-24 7:10 ` bugzilla-daemon
2016-05-24 8:08 ` bugzilla-daemon
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