Bug 950007

Summary:	fsck.vfat 100% CPU, no read()
Product:	[Fedora] Fedora	Reporter:	Harald Hoyer <harald>
Component:	dosfstools	Assignee:	Jaroslav Škarvada <jskarvad>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	19	CC:	jskarvad
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-05-06 04:28:10 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Harald Hoyer 2013-04-09 13:04:44 UTC

Description of problem:
Trying to fsck my /dev/sda1 lets fsck.vfat consume 100% CPU without any disk reads.

strace does not show any syscalls after some read().

Version-Release number of selected component (if applicable):
dosfstools-3.0.16-2.fc19.x86_64

I dd'ed and xz'ed the partition image. Maybe you can debug fsck.vfat with that.

Dropbox link sent to jskarvad in private chat. Please only share with debuggers.

Comment 1 Jaroslav Škarvada 2013-05-03 13:34:04 UTC

It does seem as ABI mismatch and it seems it was resolved by the latest rebuild. I am unable to reproduce it with the dosfstools-3.0.16-3.fc19.

I rechecked with the valgrind, there are some memory leaks due to poor coding (I am going to resolve them later), but none of them should be fatal.

Comment 2 Jaroslav Škarvada 2013-05-03 13:36:13 UTC

*** Bug 950012 has been marked as a duplicate of this bug. ***

Comment 3 Fedora Update System 2013-05-03 13:40:29 UTC

dosfstools-3.0.16-3.fc19 has been submitted as an update for Fedora 19.
https://admin.fedoraproject.org/updates/FEDORA-2013-7251/dosfstools-3.0.16-3.fc19

Comment 4 Jaroslav Škarvada 2013-05-03 13:42:54 UTC

I added this BZ to dosfstools-3.0.16-3.fc19 errata, feel free to reopen if the problem persists.

Comment 5 Fedora Update System 2013-05-06 04:28:11 UTC

dosfstools-3.0.16-3.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.