sreadahead crashed with SIGSEGV in __pause_nocancel()

[Mark A. Hershberger]

Binary package hint: sreadahead

looks like #421480 but reporting again to hopefully get a useful stacktrace.

ProblemType: Crash
Architecture: amd64
CrashCounter: 1
Date: Mon Aug 31 20:12:44 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /sbin/sreadahead
Package: sreadahead 1.0-2
ProcCmdline: /sbin/sreadahead -t 0
ProcEnviron: PATH=(custom, no user)
ProcVersionSignature: Ubuntu 2.6.31-8.28-generic
SegvAnalysis:
 Segfault happened at: 0x401ed5 <mmap@plt+2661>: mov (%r15,%rdi,1),%dil
 PC (0x00401ed5) ok
 source "(%r15,%rdi,1)" (0x100007f2700f99010) not located in a known VMA region (needed readable region)!
 destination "%dil" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: sreadahead
StacktraceTop:
 __pause_nocancel () from /lib/libpthread.so.0
 ?? ()
 __libc_start_main () from /lib/libc.so.6
 ?? ()
 ?? ()
Title: sreadahead crashed with SIGSEGV in __pause_nocancel()
Uname: Linux 2.6.31-8-generic x86_64
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:__pause_nocancel () from /lib/libpthread.so.0
?? ()
__libc_start_main (main=<value optimized out>,
?? ()
?? ()

[Mark A. Hershberger (hexmode)]

gotten this crash more than once... installing dbg packages to hopefully help

[Mark A. Hershberger (hexmode)]

This morning I walked into my laptop after leaving it on all night. The machine was un-responsive and the screen was blanked/powered off.

I ssh-ed into the box and tried various things (restarting gdm, killing processes, etc) but nothing seemed to work until I killed off the screensaver that was running: lorenz. At that point, the LCD panel on my laptop displayed a (non-responsive) terminal screen, but the widescreen LCD I have attached was still blank.

Nothing else I could do seemed to bring it back, so, from my ssh session, I rebooted the machine. When it came back up, this error was waiting.

I did an update yesterday.