Bug 42512 - [BUG] D state process after unplug and umount usb disk
Summary: [BUG] D state process after unplug and umount usb disk
Alias: None
Product: File System
Classification: Unclassified
Component: ext3 (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: fs_ext3@kernel-bugs.osdl.org
Depends on:
Blocks: 40982
  Show dependency tree
Reported: 2011-09-07 18:55 UTC by Maciej Rutecki
Modified: 2012-08-30 09:51 UTC (History)
5 users (show)

See Also:
Kernel Version:
Regression: Yes
Bisected commit-id:


Description Maciej Rutecki 2011-09-07 18:55:38 UTC
Subject    : [BUG] D state process after unplug and umount usb disk
Submitter  : Dave Young <hidave.darkstar@gmail.com>
Date       : 2011-09-03 10:31
Message-ID : CABqxG0dM27pmAiajtwAFeBVgc=U+2KaaLCYH9wxOdcW=vbku_A@mail.gmail.com
References : http://marc.info/?l=linux-kernel&m=131504588401397&w=2

This entry is being used for tracking a regression from 3.0. Please don't
close it until the problem is fixed in the mainline.
Comment 1 Greg Kroah-Hartman 2012-02-22 21:09:15 UTC
All USB bugs should be sent to the linux-usb@vger.kernel.org mailing 
list, and not entered into bugzilla.  Please bring this issue up there,
if it is still a problem in the latest kernel release.
Comment 2 Greg Kroah-Hartman 2012-02-23 21:15:49 UTC
reopening and reassigning to the correct developers.
Comment 3 Jan Kara 2012-02-27 12:04:01 UTC
Hmm, this doesn't look like an ext3 problem. The hanging command is waiting for page to be unlocked which, given it is 'cat' reading a file, is likely because read command interrupted by device unplug was not properly completed... So I'd blame either USB or SCSI layer. Or Greg, what made you think it's an ext3 bug?

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