Automount Segfault Error 6
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This Bug -Last Comment First Last Prev Next This bug is not in your last search results. Bug1089576 - segfault in automount Summary: segfault in automount Status: CLOSED ERRATA
Linux Segfault Error 6
Aliases: None Product: Red Hat Enterprise Linux 6 Classification: Red Hat Component: autofs (Show kernel segfault error 6 other bugs) Sub Component: --- Version: 6.3 Hardware: i686 Linux Priority unspecified Severity low TargetMilestone: rc TargetRelease: --- Assigned To: Ian java segfault error 6 Kent QA Contact: Yin.JianHong Docs Contact: URL: Whiteboard: Keywords: Depends On: Blocks: Show dependency tree /graph Reported: 2014-04-20 22:32 EDT by Greg Earle Modified: 2014-10-14 04:18 EDT (History) CC List: 4 users (show) eguan
Segfault Error 4
ikent rcritten rmainz See Also: Fixed In Version: autofs-5.0.5-94.el6 Doc Type: Bug Fix Doc Text: Story Points: --- Clone Of: 783303 Environment: Last Closed: 2014-10-14 04:18:21 EDT Type: --- Regression: --- Mount Type: --- Documentation: --- CRM: Verified Versions: Category: --- oVirt Team: --- RHEL 7.3 requirements from Atomic Host: Cloudforms Team: --- Attachments (Terms of Use) Patch - fix reset flex scan buffer on init (1.13 KB, patch) 2014-04-22 00:13 EDT, Ian Kent no flags Details | Diff Add an attachment (proposed patch, testcase, etc.) Groups: None (edit) Description Greg Earle 2014-04-20 22:32:38 EDT I think I'm hitting something very similar to now-closed bug #783303 on RHEL 6.3. I first saw this happen with autofs-5.0.5-54.el6.i686 as shipped with RHEL 6.3. I just updated autofs to autofs-5.0.5-88.el6.i686 and the bug is still there. On a RHEL 6.3 system that uses LDAP for authentication, I can reliably crash "automount" with a SIGSEGV just by SIGHUP'ing it. And here I thought that was just going to make it re-read its maps ;-) I started up the automounter and it spits out this error to the "messages" file: automount[5622]: syntax error in map near [ master \ ldap:ldap.fltops.jpl.nasa.gov:nisMapName=auto.home,ou=Services,ou=MER,ou=Projects,dc=dir,dc=jpl,dc=nasa,dc=gov ] but it comes up. Then I send it a HUP and it results in automount[5913]: segfault at 0 ip 0023cd2f sp b5dfafbc error 4 in libc-2.12.so[110000+190000] Core was generated by `automount --pid-file /var/run/autofs.pid'. Program terminated with signal 11, Segmentation fault. #0 0x0023cd2f in __strcmp_sse4_2 () from /lib/libc.so.6 Missing separate debuginfos, use: debuginfo-install autofs-5.0.5-88.el6.i686 (gdb) where #0 0x0023cd2f in __strcmp_sse4_2 () from /lib/libc.so.6 #1 0x00cf796c in master_find_mapent () #2 0x00cf38df in master_parse_entry () #3 0x002abf6f in lookup_read_master () from /usr/lib/autofs/lookup_file.so #4 0x00ce6af1 in ?? ()
to Milestone autofs5 (Ubuntu) Edit Confirmed Low Unassigned Edit You need to log in to change this bug's status. Affecting: autofs5 (Ubuntu) Filed here by: Hugh Warrington When: 2010-06-14 Confirmed: 2010-09-13 Target Distribution Baltix BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Ubuntu Linaro Evaluation Build Ubuntu RTM Package (Find…) Project (Find…) Status Importance Confirmed Low Assigned to Nobody Me Comment https://bugzilla.redhat.com/show_bug.cgi?id=1089576 on this change (optional) Email me about changes to this bug report Also affects project (?) Also affects distribution/package Nominate for series Bug Description Binary package hint: autofs5 # lsb_release -rd Description: Ubuntu 10.04 LTS Release: 10.04 # apt-cache policy autofs5 autofs5: Installed: 5.0.4-3.1ubuntu5 Candidate: 5.0.4-3.1ubuntu5 Version table: *** 5.0.4-3.1ubuntu5 0 500 http://gb.archive.ubuntu.com/ubuntu/ https://bugs.launchpad.net/bugs/593603 lucid/main Packages 100 /var/lib/dpkg/status Possibly related to https://bugs.launchpad.net/ubuntu/+source/autofs5/+bug/512595. After upgrading 9.04 -> 10.04, my automounts from LDAP no longer appear. Instead, I get the following in dmesg at the rate of one per second: [ 62.189700] automount[5011]: segfault at 0 ip 00007f956cb1c022 sp 00007fff3cd1a978 error 4 in libc-2.11.1.so[7f956ca99000+178000] [ 63.301490] automount[5023]: segfault at 0 ip 00007f2de5007022 sp 00007fff33695618 error 4 in libc-2.11.1.so[7f2de4f84000+178000] [ 64.328963] automount[5038]: segfault at 0 ip 00007fdc5f4b4022 sp 00007fffb09a47a8 error 4 in libc-2.11.1.so[7fdc5f431000+178000] ... I guess something is trying to repeatedly respawn automount. Here's a couple of pointers for anyone trying to debug (sensitive info turned to *****): # automount -dvf Starting automounter version 5.0.4, master map /etc/auto.master using kernel protocol version 5.01 lookup_nss_read_master: reading master file /etc/auto.master parse_init: parse(sun): init gathered global options: (null) lookup_read_master: lookup(file): read entry +auto.master lookup_nss_read_master: reading master ldap auto.master parse_server_string: lookup(ldap): Attempting to parse LDAP information from string "auto.master". parse_server_string: lookup(ldap): mapname auto.master parse_ldap_config: lookup(ldap):
Updated Likes 2 Comments 0 IBM Tririga – Updati... Blog: Real Estate a... jslong 270005B0Q4 Updated Likes 0 Comments 0 New Versions of Clea... Blog: https://www.ibm.com/developerworks/community/blogs/ClearCaseonOurDays/entry/clearcase_fails_to_start_on_red_hat_6_3_with_automount_segmentation_fault Notes from Ra... naomimg 060001F9C7 Updated Likes 1 Comments 0 Why should http://serverfault.com/questions/243579/how-to-diagnose-frequent-segfaults I upgrade... Blog: Real Estate a... doboski 310000SJR4 Updated Likes 0 Comments 0 Tips to upgrade an I... Blog: Application P... NoelLewis 060001F069 Updated Likes 4 Comments 1 ▼ Archive July 2015May 2014December 2013August 2013July 2013June 2013May 2013April 2013March 2013 ▼ Blog Authors ClearCase on our Days! segfault error View All Entries Clicking the button causes a full page refresh. The user could go to the "Entry list" region to view the new content.) Entry list ClearCase fails to start on Red Hat 6.3 with automount segmentation fault PedroMoura 270003G74Q | | Tags: automount hat rpc_get_exports_proto red ookup_hosts.so 6.3 autofs upgrade failure mvfs clearcase | 3,704 Views segfault error 6 Hi, If you just upgraded a Red Hat to version 6.3 (or if you are using old RHN medias/repositories) and ClearCase is not getting started, failing with errors like that: arc automount[ Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How to diagnose frequent segfaults up vote 4 down vote favorite 2 My server is logging frequent segmentation faults to /var/log/kern.log in different tools. So far I've seen them in Perl, PHP and rsync. All installed software is up-to-date Debian packages. Here's an exerpt from the log file: Mar 2 01:07:54 gaz kernel: [ 5316.246303] imapsync[4533]: segfault at 8b ip 00007fb448c98fe6 sp 00007ffff571dd68 error 4 in libperl.so.5.10.1[7fb448bd7000+164000] Mar 2 01:17:42 gaz kernel: [ 5904.354307] php5-cgi[4441]: segfault at 2bb3dc8 ip 0000000002bb3dc8 sp 00007fffbeeaae48 error 15 Mar 2 02:54:05 gaz kernel: [11687.922316] php5-cgi[4495]: segfault at 2d7acf9 ip 0000000002d7acf9 sp 00007fff60c6eb18 error 15 Mar 2 10:50:08 gaz kernel: [40250.390322] BUG: unable to handle kernel paging request at 00000000024b03f0 Mar 2 10:50:08 gaz kernel: [40250.390341] IP: [<00000000024b03f0>] 0x24b03f0 Mar 2 10:50:08 gaz kernel: [40250.390353] PGD 208c71067 PUD 21c811067 PMD 209329067 PTE 8000000211c88067 Mar 2 10:50:08 gaz kernel: [40250.390365] Oops: 0011 [#1] SMP Mar 2 10:50:08 gaz kernel: [40250.390373] last sysfs file: /sys/devices/pci0000:00/0000:00:12.0/host4/target4:0:0/4:0:0:0/block/sdb/stat Mar 2 10:50:08 gaz kernel: [40250.390386] CPU 1 Mar 2 10:50:08 gaz kernel: [40250.390392] Modules linked in: cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative xt_recent xt_tcpudp iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ ipv4 ip6table_filter ip6_tables xt_DSCP xt_TCPMSS ipt_LOG ipt_REJECT iptable_mangle iptable_filter xt_multiport xt_state xt_limit xt_conntrack nf_conntrack_ftp nf_conntrack ip_tables x_tables loop snd _hda_codec_atihdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm radeon snd_timer ttm snd drm_kms_helper soundcore drm snd_page_alloc i2c_algo_bit shpchp i2c_piix4 edac_core pcspkr k8temp evdev edac_m ce_amd pci_hotplug i2c_core button ext3 jbd mbcache dm_mod powernow_k8 aacraid 3w_9xxx 3w_xxxx raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async