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)
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

Robbie Williamson (robbiew) wrote :
visibility: private → public

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

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
shawnlandden (shawnlandden) wrote :

Here is a fix for this bug

shawnlandden (shawnlandden) wrote :

corrected fix

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

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: added: patch
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