Bug 198817

Summary:	Use of iscsi oopses the kernel
Product:	[Fedora] Fedora	Reporter:	Jeremy Katz <katzj>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED RAWHIDE	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	mchristi, wtogami
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-08-29 01:03:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	150224

Description Jeremy Katz 2006-07-13 20:38:05 UTC

With 2.6.17-1.2366.fc6
<1>BUG: unable to handle kernel paging request at virtual address 6b6b6b6b
<1> printing eip:
<4>f885fe8f
<1>*pde = 00000000
<0>Oops: 0000 [#1]
<1>last sysfs file: /class/iscsi_connection/connection0:0/exp_statsn
<4>Modules linked in: dm_snapshot dm_mirror dm_zero dm_mod xfs jfs reiserfs
lock_nolock gfs2 ext3 jbd msdos raid1 raid0 ata_piix libata mptspi
scsi_transport_spi mptscsih mptbase e1000 ohci1394 ieee1394 uhci_hcd ehci_hcd
iscsi_tcp libiscsi scsi_transport_iscsi sr_mod sd_mod scsi_mod ide_cd cdrom ipv6
squashfs pcspkr edd floppy loop nfs nfs_acl lockd sunrpc vfat fat cramfs
<0>CPU:    0
<4>EIP:    0060:[<f885fe8f>]    Not tainted VLI
<4>EFLAGS: 00010282   (2.6.17-1.2366.fc6 #1)
<0>EIP is at iscsi_session_teardown+0x61/0x88 [libiscsi]
<0>eax: 6b6b6b6b   ebx: f6bc8d10   ecx: dfada34c   edx: 00000001
<0>esi: f6bc8a54   edi: ef904494   ebp: f893b860   esp: efdfdcb4
<0>ds: 007b   es: 007b   ss: 0068
<0>Process iscsid (pid: 817, ti=efdfd000 task=f074c810 task.ti=efdfd000)
<0>Stack: ef904494 00000282 f07d60cc f892e3aa dfade680 dfade680 dfade680 f07d60b8
<0>       c0451dbc dfb9d86c ef8c7cac 00000048 f07d60bc f07d60cc dfade680 00000246
<0>       000000d0 dfb9d86c f893b860 ef8c7cac 7fffffff dfb9d86c 00000048 efdfdee4
<0>Call Trace:
<4> [<f892e3aa>] iscsi_if_rx+0x216/0x945 [scsi_transport_iscsi]
<4> [<c059e51a>] netlink_data_ready+0x12/0x4b
<4> [<c059d56e>] netlink_sendskb+0x19/0x2f
<4> [<c059e4fc>] netlink_sendmsg+0x260/0x26c
<4> [<c0582f44>] sock_sendmsg+0xd0/0xeb
<4> [<c05836ef>] sys_sendmsg+0x192/0x1f7
<4> [<c0584b94>] sys_socketcall+0x240/0x261
<4> [<c0402cc7>] syscall_call+0x7/0xb
<0>Code: 78 8d 86 38 03 00 00 e8 70 ee ff ff 8b 53 64 8d 86 24 03 00 00 e8 62 ee
ff ff 89 f8 e8 8d da 0c 00 89 f0 e8 dd 3e 14 00 8b 47 10 <8b> 00 85 c0 74 1d ff
88 80 01 00 00 83 38 02 75 12 8b 80 08 02
<0>EIP: [<f885fe8f>] iscsi_session_teardown+0x61/0x88 [libiscsi] SS:ESP
0068:efdfdcb4

Comment 1 Mike Christie 2006-07-13 20:43:42 UTC

I have this fixed with these patches

http://kernel.org/pub/linux/kernel/people/mnc/open-iscsi/patches/2.6.18-bugfixes-v2/

I am about to send them to the scsi maintainer in the hope they get picked up
for 2.6.18-rc2.

The patches also require a updated rpm.