Bug 4969

Summary:	2_b2: WARNING: at block/genhd.c:1465 __disk_unblock_events+0x10e/0x120 Call Trace:
Product:	Mageia	Reporter:	Bit Twister <bittwister2>
Component:	RPM Packages	Assignee:	Thomas Backlund <tmb>
Status:	RESOLVED FIXED	QA Contact:
Severity:	normal
Priority:	Normal	CC:	davidwhodgins, zen25000
Version:	Cauldron	Keywords:	UPSTREAM
Target Milestone:	---
Hardware:	x86_64
OS:	Linux
See Also:	https://bugzilla.kernel.org/show_bug.cgi?id=42823
Whiteboard:
Source RPM:	kernel	CVE:
Status comment:

Description Bit Twister 2012-03-16 02:43:05 CET

Description of problem:

getting a 
WARNING: at block/genhd.c:1465 __disk_unblock_events+0x10e/0x120 
Call Trace:

$ uname -r
3.3.0-desktop-0.rc7.1.mga2

Version-Release number of selected component (if applicable):


How reproducible: Always


Steps to Reproduce:
1. Clean Mageia-2-beta2-x86_64-DVD.iso install + updates 
   + radeon-firmware + kernel-firmware-nonfree-20120219-1 and reboot
2. default runlevel is 3
3. click up a terminal (I am using xterm)
4. su - root
5. dmesg > dmesg.log
6. search for cut here

Snippet from my dmesg.log

 USB Mass Storage support registered.
 ide-cd: hdd: ATAPI 40X DVD-ROM drive, 2048kB Cache
  sdb: sdb1 sdb2 sdb3 < sdb5 sdb6 sdb7 sdb8 >
 sd 1:0:0:0: [sdb] Attached SCSI disk
 ------------[ cut here ]------------
 WARNING: at block/genhd.c:1465 __disk_unblock_events+0x10e/0x120()
 Hardware name: ER888AA-ABA A1267C
 Modules linked in: usb_storage sd_mod crc_t10dif ide_cd_mod pata_acpi ata_generic ide_pci_generic pata_atiixp sata_sil libata ehci_hcd scsi_mod ohci_hcd usbcore firewire_ohci atiixp ide_core firewire_core crc_itu_t usb_common radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core

 Pid: 207, comm: udevd Not tainted 3.3.0-desktop-0.rc7.1.mga2 #1
 Call Trace:
  [<ffffffff8104e05f>] warn_slowpath_common+0x7f/0xc0
  [<ffffffff8104e0ba>] warn_slowpath_null+0x1a/0x20
  [<ffffffff81225fee>] __disk_unblock_events+0x10e/0x120
  [<ffffffff81227cea>] disk_unblock_events+0x1a/0x20
  [<ffffffff8119befa>] __blkdev_get+0x27a/0x440
  [<ffffffff8119c113>] blkdev_get+0x53/0x300
  [<ffffffff8117e2b4>] ? unlock_new_inode+0x44/0x70
  [<ffffffff8119acda>] ? bdget+0x11a/0x140
  [<ffffffff8119c41d>] blkdev_open+0x5d/0x80
  [<ffffffff81163450>] __dentry_open+0x290/0x360
  [<ffffffff8119c3c0>] ? blkdev_get+0x300/0x300
  [<ffffffff811720c0>] ? do_lookup+0x50/0x3d0
  [<ffffffff811648e1>] nameidata_to_filp+0x71/0x80
  [<ffffffff8117469c>] do_last+0x26c/0x920
  [<ffffffff81174e23>] path_openat+0xd3/0x3c0
  [<ffffffff8112c688>] ? handle_mm_fault+0x1f8/0x350
  [<ffffffff81175232>] do_filp_open+0x42/0xa0
  [<ffffffff8118157f>] ? alloc_fd+0x4f/0x150
  [<ffffffff811649e8>] do_sys_open+0xf8/0x1d0
  [<ffffffff81164ae1>] sys_open+0x21/0x30
  [<ffffffff814616f9>] system_call_fastpath+0x16/0x1b
 ---[ end trace 989fbe84fd0a2ee7 ]---
  sda: sda1 sda2 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 sda13 > sda3
 sd 0:0:0:0: [sda] Attached SCSI disk

Did not have the problem with all updates of beta1 as of last night.

Comment 1 Dave Hodgins 2012-03-16 04:26:21 CET

Found an upstream report at
https://bugzilla.kernel.org/show_bug.cgi?id=42823
which points to a patch available at
http://marc.info/?l=linux-kernel&m=132993002617591&w=2

CC: (none) => davidwhodgins
See Also: (none) => https://bugzilla.kernel.org/show_bug.cgi?id=42823
Source RPM: (none) => kernel

Manuel Hiebel 2012-03-16 19:27:16 CET

Keywords: (none) => UPSTREAM
Assignee: bugsquad => tmb

Comment 2 Manuel Hiebel 2012-03-17 00:28:04 CET

*** Bug 4991 has been marked as a duplicate of this bug. ***

CC: (none) => zen25000

Comment 3 Bit Twister 2012-03-20 11:44:38 CET

3.3.0-desktop-1.mga2 resolved the problem.

Status: NEW => RESOLVED
Resolution: (none) => FIXED