Bug 200540 – rebooting with an iSCSI volume mounted causes the shutdown to hang.

Bug 200540 - rebooting with an iSCSI volume mounted causes the shutdown to hang.

Summary:	rebooting with an iSCSI volume mounted causes the shutdown to hang.

Status:	CLOSED UPSTREAM

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	kernel (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	All Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Mike Christie
QA Contact:	Brian Brock
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Reported:	2006-07-28 11:16 EDT by Barry Donahue
Modified:	2007-11-30 17:11 EST (History)
CC List:	2 users (show)

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Doc Type:	Bug Fix
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Last Closed:	2007-06-20 13:46:50 EDT
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Description Barry Donahue 2006-07-28 11:16:17 EDT

Description of problem: Mount and iSCSI volume and then try shutdown -r now. The
system will hang forever waiting to dismount the filesystems.


Version-Release number of selected component (if applicable): 2.6.17-1.2431.fc6.


How reproducible: Always


Steps to Reproduce:
1.Mount iSCSI volume.
2.shutdown -r now.
3.
  
Actual results: First we get an error shutting down the iSCSI initiator.
 Stopping iSCSI initiator service: KERNEL: assertion
(!atomic_read(&sk->sk_rmem_alloc) failed at net/netlink/af_netlink.c (145)

  Later when trying to unmount the file systems, we get this error.

  Unmounting file systems: iscsi cannot broadcast skb (-3)
                           connection1:0: iscsi detected comm error (1011)


Expected results: The system should shut down cleanly.


Additional info: The iSCSI target is a celerra.

Comment 1 Mike Christie 2006-08-29 23:38:54 EDT

For iscsi the mount must be in fstab with the _netdev option. This prevents
iscsi from stopping before the network and umount scripts are called. Do a man
mount for more info on _netdev. It is something like this:

/dev/sdb               /mnt                    ext3    _netdev         0 0

Comment 2 Mike Christie 2007-06-20 13:46:50 EDT

The netlink error is fixed upstream and the fstab should work for the mount
problem. Closing.

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