[Bug 1447756] Re: segfault in log.c code causes phone reboot loops

[Ondrej Kubik]

hi James
So one way is to disable upstart logging all together with "--no-log" kern command option. We are going with this option for next OTA, till we can crack actual root cause of this issue.
As for restore, best bet is with MTK flash_tool

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Title:
  segfault in log.c code causes phone reboot loops

Status in the base for Ubuntu mobile products:
  Confirmed
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

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