Kernel panic and disconnection of all connections after modifying iscsi targets

[derkgort]

Hello

I'm having a problem with open-e DSS, an old one ( 1.32.DB00000000.2854 ) and a new one ( 5.0.DB46000000.3084 ). when removing or changing an iscsi target I can expect a kernelpanic. This is bad because after the panic I have to reboot my SAN and all virtual machines that are using targets from the san are broken with possible dataloss.

This is the dump from my logs:

2008-07-28 15:39:35 PGD 5ba1c067 PUD 5b531067... (1/1)
2008-07-28 15:39:35 CPU 0... (1/1)
2008-07-28 15:39:35 Pid: 20600, comm: ietd... (1/1)
2008-07-28 15:39:35 RIP: 0010:[<ffffffff8025a3f1>]... (1/1)
2008-07-28 15:39:35 RSP: 0018:ffff81005c1a9bd8 ... (1/1)
2008-07-28 15:39:35 RAX: ffff810118c20020 RBX:... (1/1)
2008-07-28 15:39:35 RDX: 0000000000000000 RSI:... (0/1)
2008-07-28 15:39:35 RBP: 0000000000000000 R08:... (1/1)
2008-07-28 15:39:35 R10: 0000000000000002 R11:... (1/1)
2008-07-28 15:39:35 R13: ffff810118c20000 R14:... (1/1)
2008-07-28 15:39:35 FS: 00002aea914284a0(0000)... (1/1)
2008-07-28 15:39:35 CS: 0010 DS: 0000... (1/1)
2008-07-28 15:39:35 CR2: 0000000000000000 CR3:... (1/1)
2008-07-28 15:39:35 Process ietd (pid: 20600,... (1/1)
2008-07-28 15:39:35 Stack: 000000d05c1a9f78 0000000000000021... (1/1)
2008-07-28 15:39:35 0000000000000021 ffff81005c1a9dd8 fffffffffffffff4... (1/1)
2008-07-28 15:39:35 ffff810118c25950 ffffffff8056d1b6... (1/1)
2008-07-28 15:39:35 Call Trace:... (1/1)
2008-07-28 15:39:35 <ffffffff8056d1b6>{dma_pin_iovec_pages+454}... (1/1)
2008-07-28 15:39:35 <ffffffff805758a4>{sock_common_recvmsg+52}... (1/1)
2008-07-28 15:39:35 <ffffffff805717f6>{sock_aio_read+86}... (1/1)
2008-07-28 15:39:35 <ffffffff80262f4c>{__handle_mm_fault+444}... (1/1)
2008-07-28 15:39:35 <ffffffff802427f0>{autoremove_wake_function+0}.. . (1/1)
2008-07-28 15:39:35 <ffffffff80274fe3>{sys_read+83}... (0/1)
2008-07-28 15:39:35 ... (1/1)
2008-07-28 15:39:35 Code: f0 0f ba 2f 00 19 c0 85 c0 74... (1/1)
2008-07-28 15:39:35 CR2:... (1/1)
2008-07-28 15:37:55 iscsi_volume_del(160) 1... (0/1)
2008-07-27 20:41:08 rip... (0/1)

Please help,

Derk Gortemaker

[To-L]

have you tried to disconnect and reconnect to your iSCSI targets?