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<div>i´m sure this is no rsync issue. i guess rsync is just triggering it.
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<div>https://groups.google.com/forum/#!msg/fa.linux.kernel/bxYvmkgvwGo/-gbIAVLz0zAJ</div>
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<div>maybe clocksource=jiffies or nohz=off is worth a try to see if it makes a difference</div>
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<div>regards</div>
<div>roland</div>
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<div>you mean, when the hang appears, you get ping timeout from another host, i.e. it`s not only userspace which is being locked but the kernel also locks up completely (i.e. does not respond to ping anymore) ?</div>
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<div>regards</div>
<div>roland</div>
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<div style="margin: 0 0 10.0px 0;"><b>Gesendet:</b> Freitag, 07. März 2014 um 17:21 Uhr<br/>
<b>Von:</b> "Philippe LeCavalier" <support@plecavalier.com><br/>
<b>An:</b> devzero@web.de<br/>
<b>Cc:</b> rsync@lists.samba.org<br/>
<b>Betreff:</b> Re: backup-dir over nfs</div>
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<div>Hi Roland.
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<div>On Thu, Mar 6, 2014 at 4:45 PM, <span><<a>devzero@web.de</a>></span> wrote:</div>
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<blockquote class="gmail_quote" style="margin: 0.0px 0.0px 0.0px 0.8ex;border-left-width: 1.0px;border-left-color: rgb(204,204,204);border-left-style: solid;padding-left: 1.0ex;">I cannot really follow how your setup works, can you perhaps describe it a little bit better?</blockquote>
<div>I've tried to keep it as simple as possible considering...</div>
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<div>Various remote hosts(running rsync daemon)</div>
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<div>HOST A(rsync pull / backup-dir=NFS host)</div>
<div>----></div>
<div>HOST B(NFS export for backup-dir)</div>
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<div>When HOST A is done pulling the data from the various hosts a second script starts and rsync's(push) to HOST C. Every other time HOST C grabs a fresh copy directly from the remote hosts. Of course, this part is never automatically achieved since I'm never around to key "waking" the system from the console. So every time I walk by I hit a key and it keeps going.</div>
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please provide the command which works and which not.</blockquote>
<div>hangs with: -avS --exclude-from=exclude.rsync --delete --backup --backup-dir=/path/to/nfs on HOST B/date +today's date</div>
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<div>does not hang with: -avS --exclude-from=exclude.rsync --delete --backup --backup-dir=/path/to/local/date +today's date fs on HOST A</div>
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so - resuming from hang is all about keypress?</blockquote>
<div>Yes. </div>
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that sounds like an interrupt issue,i guess its no rsync problem but it`s only being triggered by rsync.</blockquote>
<div>My assumption is also that it's likely not directly related to rsync. I was thinking more NFS though. </div>
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keep an eye on /proc/interrupts.</blockquote>
<div>Interesting. Hadn't thought of that. I will. </div>
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please post the answer to the rsync list, so others can also have a look</blockquote>
<div>Done. </div>
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<div>Question: I'm running this in cron as root. Although root can rw to the NFS share while I'm in the console, is it somehow possible I'm encountering a permissions issue and just not seeing a "permission denied" anywhere? </div>
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