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a couple synergyc crashes on Centos Linux


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Peter Moore
Linux xcpc01.sweng.com 2.6.18-308.24.1.el5 #1 SMP Tue Dec 4 17:43:34 EST 2012 x86_64 x86_64 x86_64 GNU/Linux Oct 27 13:26:58 xpmoore kernel: synergyc[17783]: segfault at 11 ip 00000011 sp bfc09cdc error 4 in libstdc++.so.6.0.13[149000+e1000] Oct 27 13:45:41 xpmoore Synergy 1.7.4: [2015-10-27T13:45:41] INFO: entering screen Oct 27 13:45:41 xpmoore Synergy 1.7.4: [2015-10-27T13:45:41] INFO: clipboard was updated Oct 27 13:45:41 xpmoore Synergy 1.7.4: [2015-10-27T13:45:41] INFO: clipboard was updated Oct 27 13:45:44 xpmoore Synergy 1.7.4: [2015-10-27T13:45:44] INFO: leaving screen Oct 27 13:45:44 xpmoore Synergy 1.7.4: [2015-10-27T13:45:44] INFO: entering screen Oct 27 13:45:57 xpmoore Synergy 1.7.4: [2015-10-27T13:45:57] INFO: leaving screen Oct 27 13:46:03 xpmoore automount[2973]: 1 remaining in /home Oct 27 13:46:07 xpmoore Synergy 1.7.4: [2015-10-27T13:46:07] INFO: entering screen Oct 27 13:46:07 xpmoore Synergy 1.7.4: [2015-10-27T13:46:07] INFO: clipboard was updated Oct 27 13:46:42 xpmoore automount[2973]: attempting to mount entry /net Oct 27 13:46:42 xpmoore automount[2973]: mount(nfs): mounted xsplunge.sweng.com:/netstore on /net Oct 27 13:46:42 xpmoore automount[2973]: mounted /net Oct 27 13:46:47 xpmoore automount[2973]: 2 remaining in /- Oct 27 13:46:58 xpmoore Synergy 1.7.4: [2015-10-27T13:46:58] INFO: leaving screen Oct 27 13:47:01 xpmoore Synergy 1.7.4: [2015-10-27T13:47:01] INFO: entering screen Oct 27 13:47:01 xpmoore kernel: synergyc[19744]: segfault at 32256934 ip 080cfbbf sp b41fee2c error 4 in synergyc[8045000+aa000] I pretty frequently am losing connectivity to this system (xpmoore). Just noticed these crashes today. Any insight?
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Peter Moore
Huh, go figure. Connectivity lost just after posting, but not a crash (yet). pmoore-620 On the client: Oct 27 14:04:55 xpmoore Synergy 1.7.4: [2015-10-27T14:04:55] NOTE: started client Oct 27 14:05:00 xpmoore Synergy 1.7.4: [2015-10-27T14:05:00] NOTE: connecting to 'pmoore-620.xxxxxxx.com': xxx.xxx.xxx.xxx:24800 Oct 27 14:05:00 xpmoore Synergy 1.7.4: [2015-10-27T14:05:00] NOTE: connected to server Oct 27 14:05:07 xpmoore Synergy 1.7.4: [2015-10-27T14:05:07] INFO: entering screen Oct 27 14:05:07 xpmoore Synergy 1.7.4: [2015-10-27T14:05:07] INFO: clipboard was updated Oct 27 14:05:07 xpmoore Synergy 1.7.4: [2015-10-27T14:05:07] INFO: clipboard was updated Oct 27 14:05:07 xpmoore Synergy 1.7.4: [2015-10-27T14:05:07] INFO: leaving screen Oct 27 14:05:08 xpmoore Synergy 1.7.4: [2015-10-27T14:05:08] INFO: entering screen Oct 27 14:05:08 xpmoore Synergy 1.7.4: [2015-10-27T14:05:08] INFO: leaving screen Oct 27 14:05:32 xpmoore automount[2973]: 2 remaining in /- Oct 27 14:06:03 xpmoore automount[2973]: 1 remaining in /home Oct 27 14:06:47 xpmoore automount[2973]: 2 remaining in /- Oct 27 14:07:07 xpmoore Synergy 1.7.4: [2015-10-27T14:07:07] INFO: entering screen Oct 27 14:07:16 xpmoore Synergy 1.7.4: [2015-10-27T14:07:16] INFO: leaving screen Oct 27 14:07:18 xpmoore automount[2973]: 1 remaining in /home Oct 27 14:08:02 xpmoore automount[2973]: 2 remaining in /- Oct 27 14:08:33 xpmoore automount[2973]: 1 remaining in /home Oct 27 14:09:17 xpmoore automount[2973]: 2 remaining in /- Oct 27 14:09:48 xpmoore automount[2973]: 1 remaining in /home Oct 27 14:10:27 xpmoore Synergy 1.7.4: [2015-10-27T14:10:27] INFO: entering screen Oct 27 14:10:28 xpmoore Synergy 1.7.4: [2015-10-27T14:10:28] INFO: leaving screen Oct 27 14:10:28 xpmoore Synergy 1.7.4: [2015-10-27T14:10:28] INFO: entering screen Oct 27 14:10:32 xpmoore automount[2973]: 2 remaining in /- Oct 27 14:10:35 xpmoore Synergy 1.7.4: [2015-10-27T14:10:35] INFO: leaving screen Oct 27 14:10:42 xpmoore Synergy 1.7.4: [2015-10-27T14:10:42] INFO: entering screen On the server. (Timestamps on the server are 00:09:43 ahead of the client.) Oh, and notice the "client is dead" message. The nbma-pmoore client is a Windows laptop. [2015-10-27T14:14:41] DEBUG: received client "xpmoore.xxxxxx.com" info shape=0,0 1600x1200 at 633,184 [2015-10-27T14:14:41] DEBUG: active sides: 6 [2015-10-27T14:14:41] NOTE: client "xpmoore" has connected [2015-10-27T14:14:48] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,785 [2015-10-27T14:14:48] INFO: leaving screen [2015-10-27T14:14:48] DEBUG: open clipboard [2015-10-27T14:14:48] DEBUG: close clipboard [2015-10-27T14:14:48] INFO: screen "PMOORE-620" updated clipboard 0 [2015-10-27T14:14:48] DEBUG: open clipboard [2015-10-27T14:14:48] DEBUG: close clipboard [2015-10-27T14:14:48] INFO: screen "PMOORE-620" updated clipboard 1 [2015-10-27T14:14:48] DEBUG: sending clipboard 0 to "xpmoore.xxxxxx.com" [2015-10-27T14:14:48] DEBUG: sent clipboard size=23 [2015-10-27T14:14:48] DEBUG: sending clipboard 1 to "xpmoore.xxxxxx.com" [2015-10-27T14:14:48] DEBUG: sent clipboard size=23 [2015-10-27T14:14:48] INFO: switch from "xpmoore" to "PMOORE-620" at 1,785 [2015-10-27T14:14:48] INFO: entering screen [2015-10-27T14:14:49] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,827 [2015-10-27T14:14:49] INFO: leaving screen [2015-10-27T14:14:49] DEBUG: open clipboard [2015-10-27T14:14:49] DEBUG: close clipboard [2015-10-27T14:14:49] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:14:49] DEBUG: open clipboard [2015-10-27T14:14:49] DEBUG: close clipboard [2015-10-27T14:14:49] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:14:50] INFO: switch from "xpmoore" to "PMOORE-620" at 8,856 [2015-10-27T14:14:50] INFO: entering screen [2015-10-27T14:16:49] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,641 [2015-10-27T14:16:49] INFO: leaving screen [2015-10-27T14:16:49] DEBUG: open clipboard [2015-10-27T14:16:49] DEBUG: close clipboard [2015-10-27T14:16:49] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:16:49] DEBUG: open clipboard [2015-10-27T14:16:49] DEBUG: close clipboard [2015-10-27T14:16:49] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:16:57] INFO: switch from "xpmoore" to "PMOORE-620" at 4,724 [2015-10-27T14:16:57] INFO: entering screen [2015-10-27T14:18:34] INFO: switch from "PMOORE-620" to "nbma-pmoore" at 0,352 [2015-10-27T14:18:34] INFO: leaving screen [2015-10-27T14:18:34] DEBUG: open clipboard [2015-10-27T14:18:34] DEBUG: close clipboard [2015-10-27T14:18:34] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:18:34] DEBUG: open clipboard [2015-10-27T14:18:34] DEBUG: close clipboard [2015-10-27T14:18:34] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:18:34] DEBUG: sending clipboard 0 to "NBMA-PMOORE" [2015-10-27T14:18:34] DEBUG: sent clipboard size=23 [2015-10-27T14:18:34] DEBUG: sending clipboard 1 to "NBMA-PMOORE" [2015-10-27T14:18:34] DEBUG: sent clipboard size=23 [2015-10-27T14:18:35] INFO: switch from "nbma-pmoore" to "PMOORE-620" at 1569,888 [2015-10-27T14:18:35] INFO: entering screen [2015-10-27T14:18:36] INFO: switch from "PMOORE-620" to "nbma-pmoore" at 0,697 [2015-10-27T14:18:36] INFO: leaving screen [2015-10-27T14:18:36] DEBUG: open clipboard [2015-10-27T14:18:36] DEBUG: close clipboard [2015-10-27T14:18:36] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:18:36] DEBUG: open clipboard [2015-10-27T14:18:36] DEBUG: close clipboard [2015-10-27T14:18:36] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:18:40] INFO: switch from "nbma-pmoore" to "PMOORE-620" at 1592,757 [2015-10-27T14:18:40] INFO: entering screen [2015-10-27T14:18:41] INFO: switch from "PMOORE-620" to "nbma-pmoore" at 0,613 [2015-10-27T14:18:41] INFO: leaving screen [2015-10-27T14:18:41] DEBUG: open clipboard [2015-10-27T14:18:41] DEBUG: close clipboard [2015-10-27T14:18:41] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:18:41] DEBUG: open clipboard [2015-10-27T14:18:41] DEBUG: close clipboard [2015-10-27T14:18:41] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:18:41] DEBUG: dropped bogus delta motion: +830,+160 [2015-10-27T14:18:53] INFO: switch from "nbma-pmoore" to "PMOORE-620" at 1578,331 [2015-10-27T14:18:53] INFO: entering screen [2015-10-27T14:20:09] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,532 [2015-10-27T14:20:09] INFO: leaving screen [2015-10-27T14:20:09] DEBUG: open clipboard [2015-10-27T14:20:09] DEBUG: close clipboard [2015-10-27T14:20:09] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:20:09] DEBUG: open clipboard [2015-10-27T14:20:09] DEBUG: close clipboard [2015-10-27T14:20:09] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:20:09] INFO: switch from "xpmoore" to "PMOORE-620" at 37,542 [2015-10-27T14:20:09] INFO: entering screen [2015-10-27T14:20:09] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,541 [2015-10-27T14:20:09] INFO: leaving screen [2015-10-27T14:20:09] DEBUG: open clipboard [2015-10-27T14:20:09] DEBUG: close clipboard [2015-10-27T14:20:09] DEBUG: ignored screen "PMOORE-620" update of clipboard 0 (unchanged) [2015-10-27T14:20:09] DEBUG: open clipboard [2015-10-27T14:20:09] DEBUG: close clipboard [2015-10-27T14:20:09] DEBUG: ignored screen "PMOORE-620" update of clipboard 1 (unchanged) [2015-10-27T14:20:09] DEBUG: dropped bogus delta motion: -809,-230 [2015-10-27T14:20:14] DEBUG: received client "xpmoore.xxxxxx.com" grabbed clipboard 1 seqnum=19 [2015-10-27T14:20:14] INFO: screen "xpmoore" grabbed clipboard 1 from "PMOORE-620" [2015-10-27T14:20:14] DEBUG: open clipboard [2015-10-27T14:20:14] DEBUG: empty clipboard [2015-10-27T14:20:14] DEBUG: close clipboard [2015-10-27T14:20:14] DEBUG: clipboard changed: synergy owned [2015-10-27T14:20:14] DEBUG: send grab clipboard 1 to "NBMA-PMOORE" [2015-10-27T14:20:17] INFO: switch from "xpmoore" to "PMOORE-620" at 20,442 [2015-10-27T14:20:17] INFO: entering screen [2015-10-27T14:20:17] DEBUG: open clipboard [2015-10-27T14:20:17] DEBUG: empty clipboard [2015-10-27T14:20:17] DEBUG: close clipboard [2015-10-27T14:20:24] INFO: switch from "PMOORE-620" to "xpmoore" at 1599,488 [2015-10-27T14:20:24] INFO: leaving screen [2015-10-27T14:20:24] DEBUG: open clipboard [2015-10-27T14:20:24] DEBUG: close clipboard [2015-10-27T14:20:24] INFO: screen "PMOORE-620" updated clipboard 0 [2015-10-27T14:20:24] DEBUG: sending clipboard 0 to "xpmoore.xxxxxx.com" [2015-10-27T14:20:24] DEBUG: sent clipboard size=4 [2015-10-27T14:20:25] INFO: switch from "xpmoore" to "PMOORE-620" at 6,542 [2015-10-27T14:20:25] INFO: entering screen [b][2015-10-27T14:20:33] NOTE: client "xpmoore.xxxxxx.com" is dead [/b][2015-10-27T14:20:33] DEBUG: active sides: 6 [2015-10-27T14:20:41] DEBUG: clipboard changed: lost ownership [2015-10-27T14:20:41] INFO: screen "PMOORE-620" grabbed clipboard 0 from "PMOORE-620" [2015-10-27T14:20:41] DEBUG: send grab clipboard 0 to "NBMA-PMOORE" [2015-10-27T14:20:41] INFO: screen "PMOORE-620" grabbed clipboard 1 from "xpmoore" [2015-10-27T14:20:41] DEBUG: send grab clipboard 1 to "NBMA-PMOORE"
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  • 3 weeks later...
Sidney Harrell
I'm wondering almost the same thing. How can I get more debugging information to send back to you about why the client is seizing up. I've tried attaching gdb to the running synergyc process, but I get this: Reading symbols from /usr/bin/synergyc...(no debugging symbols found)...done. Is there another build that I can use with the dbg symbols in it, like most Ubuntu (and Centos) packages have a separate -dbg or -debuginfo package that you can install to give you the debugging symbols neccessary to get a backtrace. Do you have such a synergy-dbg package, or do we need to build from source with the debuggging flage enabled, or something?
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