in ksym_mod.c we have
ksyms = fopen(KSYMS, "r");
if ( ksyms == NULL )
{
if ( errno == ENOENT )
Syslog(LOG_INFO, "No module symbols loaded - "
"kernel modules not enabled.\n");
else
Syslog(LOG_ERR, "Error loading kernel symbols " \
"- %s\n", strerror(errno));
fclose(ksyms);
return(0);
}
We fclose a NULL file descriptor?
On OpenVZ, /proc/kallsyms (=KSYMS) does not exist. So it segfaults here.
** Attachment added: "Do no fclose null file descriptor"
http://launchpadlibrarian.net/37613199/dont-fclose-null.patch
** Summary changed:
- Hangs at "Starting kernel log daemon..." in OpenVZ container
+ klogd segfaults on startup in OpenVZ container, makes boot+upgrade hang at
"Starting kernel log daemon..."
--
klogd segfaults on startup in OpenVZ container, makes boot+upgrade hang at
"Starting kernel log daemon..."
https://bugs.launchpad.net/bugs/218320
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