Bug 628956 - augeas crashes when trying to run libvirtd
augeas crashes when trying to run libvirtd
Product: Fedora
Classification: Fedora
Component: augeas (Show other bugs)
All Linux
low Severity medium
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Assigned To: David Lutterkort
Fedora Extras Quality Assurance
: 636595 (view as bug list)
Depends On:
  Show dependency treegraph
Reported: 2010-08-31 10:07 EDT by Richard Hughes
Modified: 2013-04-30 19:42 EDT (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2012-08-16 18:06:17 EDT
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Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Richard Hughes 2010-08-31 10:07:19 EDT
Description of problem:

augeas crashes when trying to run libvirtd with the following backtrace:

Program received signal SIGSEGV, Segmentation fault.
dict_pos (key=0x82556e0 "custom-rules", dict=<value optimized out>) at ast.c:132
132	        int cmp = strcmp(dict->nodes[m]->key, key);
Missing separate debuginfos, use: debuginfo-install db4-4.8.30-2.fc14.i686 libidn-1.18-1.fc14.i686 libsepol-2.0.41-3.fc14.i686
(gdb) bt
#0  dict_pos (key=0x82556e0 "custom-rules", dict=<value optimized out>) at ast.c:132
#1  0x00339bcc in dict_lookup (key=0x82556e0 "custom-rules", dict=0x8342590, skel=0xbfffd3ac, subdict=0xbfffd3a8) at ast.c:204
#2  0x0033d6cf in put_subtree (state=0xbfffd398, lens=<value optimized out>) at put.c:449
#3  0x0033d238 in put_lens (lens=<value optimized out>, state=<value optimized out>) at put.c:624
#4  0x0033d2a0 in put_quant_star (lens=<value optimized out>, state=<value optimized out>) at put.c:544
#5  put_lens (lens=<value optimized out>, state=<value optimized out>) at put.c:627
#6  0x0033dc8d in lns_put (out=0x82625e8, lens=0x8353018, tree=0x8340c98, text=0x83ae170 "\n", err=0xbfffd43c) at put.c:787
#7  0x00338ef9 in transform_save (aug=0x8239f50, xfm=0x8251840, path=0x82659e8 "/files/etc/sysconfig/system-config-firewall", tree=0x830d258) at transform.c:940
#8  0x0031d136 in tree_save (aug=0x8239f50, tree=<value optimized out>, path=0x825f1f0 "/files/etc/sysconfig") at augeas.c:1117
#9  0x0031d231 in tree_save (aug=0x8239f50, tree=<value optimized out>, path=0x8267418 "/files/etc") at augeas.c:1121
#10 0x0031d231 in tree_save (aug=0x8239f50, tree=<value optimized out>, path=0x349fdd "/files") at augeas.c:1121
#11 0x0031e850 in aug_save (aug=0x8239f50) at augeas.c:1216
#12 0x003c19a1 in bridge_physdevs (ncf=0x815a978) at drv_initscripts.c:421
#13 drv_init (ncf=0x815a978) at drv_initscripts.c:502
#14 0x003becd2 in ncf_init (ncf=0x8173c88, root=<value optimized out>) at netcf.c:104
#15 0x080f4880 in interfaceOpenInterface (conn=0x81d17f0, auth=0x0, flags=0) at interface/netcf_driver.c:135
#16 0x020bbc5e in do_open (name=0x8110813 "qemu:///system", auth=0x0, flags=0) at libvirt.c:1283
#17 0x020bd4e0 in virConnectOpen (name=0x8110813 "qemu:///system") at libvirt.c:1427
#18 0x08083199 in qemudAutostartConfigs (driver=0x8156fc0) at qemu/qemu_driver.c:845
#19 0x080863c5 in qemudStartup (privileged=1) at qemu/qemu_driver.c:1931
#20 0x020bd064 in virStateInitialize (privileged=1) at libvirt.c:978
#21 0x0805f6a6 in main (argc=1, argv=0xbffff7a4) at libvirtd.c:3241

Version-Release number of selected component (if applicable):

$ rpm -q augeas-libs

How reproducible:


Steps to Reproduce:
1. Run /usr/sbin/libvirtd as root.
2. Boom.

Additional info:

Fully updated F14.
Comment 1 David Lutterkort 2010-08-31 15:48:33 EDT
I can't reproduce this on my F13 machine. I'll set up a F14 VM and see if I can reproduce it there.

There's two things I don't quite understand from the stacktrace:

(1) /proc/sys/net/bridge/bridge-nf-call-iptables must be set to 1, otherwise the code would never get there

(2) in the stacktrace, the arguments for dict_pos are in the wrong order, though seem to have the right values - might be some gdb hickup
Comment 2 Laine Stump 2010-09-02 12:13:37 EDT
This is just aside-issue, but I just updated my F14 box and noted that after a reboot, although /etc/sysctl.conf has:

    net.bridge.bridge-nf-call-iptables = 0

/proc/sys/net/bridge/bridge-nf-call-iptables contains "1". It appears some process is modifying this setting without updating /etc/sysctl.conf.

(ncftool started successfully for me, at least on this first run).
Comment 3 Dave Allan 2010-10-21 14:04:15 EDT
*** Bug 636595 has been marked as a duplicate of this bug. ***
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