* Debugging hung autofs /home? [not found] <43C29C28.5090407@deragon.biz> @ 2006-01-10 23:16 ` Jim Davis 2006-01-10 23:51 ` Jeff Moyer 0 siblings, 1 reply; 6+ messages in thread From: Jim Davis @ 2006-01-10 23:16 UTC (permalink / raw) To: autofs [root@lectura /]# ps ax | grep auto 2709 ? Ss 0:00 /usr/sbin/automount --timeout=3600 --verbose --debug /home file /etc/auto_home -rw,intr,nosuid 2763 ? Ss 0:00 /usr/sbin/automount --timeout=3600 --verbose --debug /cs file /etc/auto_cs -rw,intr,nosuid 3776 ? S 0:00 kalarmd --autostart 21284 pts/16 S+ 0:00 grep automount 21827 pts/28 S+ 0:00 grep auto [root@lectura /]# kill -HUP 2709 [root@lectura /]# strace -f -p 2709 Process 2709 attached - interrupt to quit futex(0x2aaaaaefd840, FUTEX_WAIT, 2, NULL That process doesn't respond to kill -HUP, USR1, USR2, or /sbin/service autofs reload. (The other automount process associated with /cs seems to be fine.) New mounts under /home just hang. Mounting the directories by hand from the NFS server works. This is on a 4-processor AMD system running FC4: Linux lectura.cs.arizona.edu 2.6.14-1.1656_FC4smp #1 SMP Thu Jan 5 22:26:33 EST 2006 x86_64 x86_64 x86_64 GNU/Linux ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Debugging hung autofs /home? 2006-01-10 23:16 ` Debugging hung autofs /home? Jim Davis @ 2006-01-10 23:51 ` Jeff Moyer 2006-01-10 23:53 ` Jim Davis 0 siblings, 1 reply; 6+ messages in thread From: Jeff Moyer @ 2006-01-10 23:51 UTC (permalink / raw) To: Jim Davis; +Cc: autofs ==> Regarding [autofs] Debugging hung autofs /home?; Jim Davis <jdavis@cs.arizona.edu> adds: jdavis> [root@lectura /]# ps ax | grep auto jdavis> 2709 ? Ss 0:00 /usr/sbin/automount --timeout=3600 --verbose jdavis> --debug /home file /etc/auto_home -rw,intr,nosuid jdavis> 2763 ? Ss 0:00 /usr/sbin/automount --timeout=3600 --verbose jdavis> --debug /cs file /etc/auto_cs -rw,intr,nosuid jdavis> 3776 ? S 0:00 kalarmd --autostart jdavis> 21284 pts/16 S+ 0:00 grep automount jdavis> 21827 pts/28 S+ 0:00 grep auto jdavis> [root@lectura /]# kill -HUP 2709 jdavis> [root@lectura /]# strace -f -p 2709 jdavis> Process 2709 attached - interrupt to quit jdavis> futex(0x2aaaaaefd840, FUTEX_WAIT, 2, NULL jdavis> That process doesn't respond to kill -HUP, USR1, USR2, or /sbin/service jdavis> autofs reload. (The other automount process associated with /cs seems jdavis> to be fine.) New mounts under /home just hang. Mounting the jdavis> directories by hand from the NFS server works. jdavis> This is on a 4-processor AMD system running FC4: jdavis> Linux lectura.cs.arizona.edu 2.6.14-1.1656_FC4smp #1 SMP Thu Jan 5 jdavis> 22:26:33 EST 2006 x86_64 x86_64 x86_64 GNU/Linux And you left off the version of autofs you're running. Most likely it's older, and does not have the reentrant syslog patches. I think an upgrade will fix your wagon. ;) -Jeff ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Debugging hung autofs /home? 2006-01-10 23:51 ` Jeff Moyer @ 2006-01-10 23:53 ` Jim Davis 2006-01-10 23:59 ` Jeff Moyer 0 siblings, 1 reply; 6+ messages in thread From: Jim Davis @ 2006-01-10 23:53 UTC (permalink / raw) To: jmoyer; +Cc: autofs Jeff Moyer wrote: >==> Regarding [autofs] Debugging hung autofs /home?; Jim Davis <jdavis@cs.arizona.edu> adds: > >And you left off the version of autofs you're running. > Ooops; autofs-4.1.4-5. 'yum update' doesn't seem to find a newer one. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Debugging hung autofs /home? 2006-01-10 23:53 ` Jim Davis @ 2006-01-10 23:59 ` Jeff Moyer 2006-01-11 17:17 ` Jim Davis 0 siblings, 1 reply; 6+ messages in thread From: Jeff Moyer @ 2006-01-10 23:59 UTC (permalink / raw) To: Jim Davis; +Cc: autofs ==> Regarding Re: [autofs] Debugging hung autofs /home?; Jim Davis <jdavis@CS.Arizona.EDU> adds: jdavis> Jeff Moyer wrote: >> ==> Regarding [autofs] Debugging hung autofs /home?; Jim Davis <jdavis@cs.arizona.edu> adds: >> >> And you left off the version of autofs you're running. >> jdavis> Ooops; autofs-4.1.4-5. 'yum update' doesn't seem to find a newer one. Interesting. Then I'd suggest you provide the information requested in the "Filing bug reports" section of my people page: http://people.redhat.com/jmoyer/ We previously saw automount processes hung in FUTEX_WAIT when making syslog calls from a signal handler (a definite no no). This has been fixed in the version of autofs that you are running. So, we'll need more information to debug this one. Thanks, Jeff ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Debugging hung autofs /home? 2006-01-10 23:59 ` Jeff Moyer @ 2006-01-11 17:17 ` Jim Davis 2006-01-11 17:20 ` Jeff Moyer 0 siblings, 1 reply; 6+ messages in thread From: Jim Davis @ 2006-01-11 17:17 UTC (permalink / raw) To: jmoyer; +Cc: autofs Jeff Moyer wrote: > >ewer one. > >Interesting. Then I'd suggest you provide the information requested in the >"Filing bug reports" section of my people page: > > http://people.redhat.com/jmoyer/ > The somewhat lengthy file from the latest hang is at http://www.cs.arizona.edu/people/jdavis/autofsbug. If there's anything else I can provide, let me know. I have installed the 4-1-4.8 rpms, and have strace running on the automount process controlling /home. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Debugging hung autofs /home? 2006-01-11 17:17 ` Jim Davis @ 2006-01-11 17:20 ` Jeff Moyer 0 siblings, 0 replies; 6+ messages in thread From: Jeff Moyer @ 2006-01-11 17:20 UTC (permalink / raw) To: Jim Davis; +Cc: autofs ==> Regarding Re: [autofs] Debugging hung autofs /home?; Jim Davis <jdavis@CS.Arizona.EDU> adds: jdavis> Jeff Moyer wrote: >> >> ewer one. >> >> Interesting. Then I'd suggest you provide the information requested in the >> "Filing bug reports" section of my people page: >> >> http://people.redhat.com/jmoyer/ >> jdavis> The somewhat lengthy file from the latest hang is at jdavis> http://www.cs.arizona.edu/people/jdavis/autofsbug. If there's anything jdavis> else I can provide, let me know. I have installed the 4-1-4.8 rpms, and jdavis> have strace running on the automount process controlling /home. Turns out Ian is right. The syslog fixes didn't go in until 4.1.4-8 (and those fixes were a different implementation that what was committed in 4.1.4-10). So, 4.1.4-10 is your best bet. I'll see about updating the Fedora packages soonish. -Jeff ^ permalink raw reply [flat|nested] 6+ messages in thread
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[not found] <43C29C28.5090407@deragon.biz>
2006-01-10 23:16 ` Debugging hung autofs /home? Jim Davis
2006-01-10 23:51 ` Jeff Moyer
2006-01-10 23:53 ` Jim Davis
2006-01-10 23:59 ` Jeff Moyer
2006-01-11 17:17 ` Jim Davis
2006-01-11 17:20 ` Jeff Moyer
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