Ubuntu
btrfs-tools package

btrfstune crashed with SIGSEGV in main()

Bug #926186 reported by Robbie Williamson on 2012-02-03

66

This bug affects 18 people

Affects		Status	Importance	Assigned to	Milestone
	btrfs-tools (Ubuntu)	Triaged	Medium	Unassigned

Bug Description

Occurred when I attempted to run 'sudo btrfstune' on the umounted btrfs filesystem device. I can mount and access the filesystem just fine.

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: btrfs-tools 0.19+20100601-3ubuntu3
ProcVersionSignature: Ubuntu 3.2.0-12.20-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
Date: Fri Feb 3 10:40:33 2012
ExecutablePath: /sbin/btrfstune
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110705.1)
ProcCmdline: btrfstune /dev/sda3
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_US.UTF-8
SegvAnalysis:
Segfault happened at: 0x40141d: mov 0x110(%r12),%rax
PC (0x0040141d) ok
source "0x110(%r12)" (0x00000110) not located in a known VMA region (needed readable region)!
destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: btrfs-tools
StacktraceTop:
?? ()
__libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
?? ()
?? ()
?? ()
Title: btrfstune crashed with SIGSEGV in __libc_start_main()
UpgradeStatus: Upgraded to precise on 2011-12-23 (41 days ago)
UserGroups: adm admin cdrom dialout libvirtd lpadmin plugdev sambashare vboxusers

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Revision history for this message

Robbie Williamson (robbiew) wrote on 2012-02-03:

#1

Dependencies.txt Edit (735 bytes, text/plain; charset="utf-8")
Disassembly.txt Edit (431 bytes, text/plain; charset="utf-8")
ProcMaps.txt Edit (1.9 KiB, text/plain; charset="utf-8")
ProcStatus.txt Edit (822 bytes, text/plain; charset="utf-8")
Registers.txt Edit (735 bytes, text/plain; charset="utf-8")
Stacktrace.txt Edit (627 bytes, text/plain; charset="utf-8")
ThreadStacktrace.txt Edit (651 bytes, text/plain; charset="utf-8")

visibility:

private → public

Revision history for this message

Apport retracing service (apport) wrote on 2012-02-03:

#2

Stacktrace:
#0 main (argc=<optimized out>, argv=0x7fffedbc2cb8) at btrfstune.c:120
         root = 0x0
         seeding_flag = 0
         seeding_value = <optimized out>
         ret = <optimized out>
StacktraceTop: main (argc=<optimized out>, argv=0x7fffedbc2cb8) at btrfstune.c:120

Revision history for this message

Apport retracing service (apport) wrote on 2012-02-03: ThreadStacktrace.txt

#3

ThreadStacktrace.txt Edit (209 bytes, text/plain)

Changed in btrfs-tools (Ubuntu):
importance:	Undecided → Medium
summary:	- btrfstune crashed with SIGSEGV in __libc_start_main() + btrfstune crashed with SIGSEGV in main()
tags:	removed: need-amd64-retrace

Revision history for this message

shawnlandden (shawnlandden) wrote on 2012-06-23:

#4

Here is a fix for this bug

Revision history for this message

shawnlandden (shawnlandden) wrote on 2012-06-23:

#5

corrected fix

Revision history for this message

shawnlandden (shawnlandden) wrote on 2012-06-23:

#6

0001-Check-for-failure-in-open_ctree-call.-LP-926186.patch Edit (662 bytes, text/plain)

Dimitri John Ledkov (xnox) on 2012-06-23

Changed in btrfs-tools (Ubuntu):
status:	New → Triaged

Revision history for this message

Ubuntu Foundations Team Bug Bot (crichton) wrote on 2012-06-23:

#7

The attachment "0001-Check-for-failure-in-open_ctree-call.-LP-926186.patch" of this bug report has been identified as being a patch. The ubuntu-reviewers team has been subscribed to the bug report so that they can review the patch. In the event that this is in fact not a patch you can resolve this situation by removing the tag 'patch' from the bug report and editing the attachment so that it is not flagged as a patch. Additionally, if you are member of the ubuntu-reviewers team please also unsubscribe the team from this bug report.

[This is an automated message performed by a Launchpad user owned by Brian Murray. Please contact him regarding any issues with the action taken in this bug report.]

tags:

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