Hi Ondrej,
Regarding #15, I'm not sure this is correct. As you say, when the job
process terminates, job_process_terminated() gets called. This calls
log_handle_unflushed() and that function calls log_read_watch(), which
ultimately calls write(2). However, even if the write is successful
before 'initctl notify-disk-writeable' gets called, if you look at
log_handle_unflushed()...
743 log_handle_unflushed (void *parent, Log *log)
744 {
745 NihListEntry *elem;
746
747 nih_assert (log);
748 nih_assert (log->detached == 0);
749
750 log_read_watch (log);
751
752 if (! log->unflushed->len)
753 return 1;
So, if the write is successful and log->unflushed->len becomes zero, the
function returns 1 (meaning "log does not need to be added to the
unflushed list") and crucially the log is not added to the unflushed
list.
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to upstart in Ubuntu.
https://bugs.launchpad.net/bugs/1447756
Title:
segfault in log.c code causes phone reboot loops
Status in the base for Ubuntu mobile products:
Fix Committed
Status in Upstart:
New
Status in upstart package in Ubuntu:
Confirmed
Bug description:
We recently started getting reprots from phone users that their
devices go into a reboot loop after changing the language or getting
an OTA upgrade (either of both end with a reboot of the phone)
after a bit of research we collected the log at
http://pastebin.ubuntu.com/10872934/
this shows a segfault of upstarts init binary in the log.c code:
[ 6.999083]init: log.c:819: Assertion failed in log_clear_unflushed:
log->unflushed->len
[ 7.000279]init: Caught abort, core dumped
[ 7.467176]Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00000600
To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1447756/+subscriptions
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