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Date: Tue, 12 May 2009 23:28:59 +0200 From: Ferenc Wagner <wferi@...f.hu> To: linux-kernel@...r.kernel.org, openipmi-developer@...ts.sourceforge.net Subject: modprobe ipmi_si hangs under 2.6.30-rc5 Hi, On a Dell PowerEdge 2650 2.6.30-rc5 can't load the ipmi_si module. 2.6.29 has no such problems: [ 46.292160] IPMI System Interface driver. [ 46.300321] ipmi_si: Trying SMBIOS-specified smic state machine at i/o address 0xecf4, slave address 0x20, irq 0 [ 46.408212] ipmi: Found new BMC (man_id: 0x0002a2, prod_id: 0x0000, dev_id: 0x00) [ 46.423454] IPMI smic interface initialized But under 2.6.30-rc5: # modprobe ipmi_si bt_debug=7 smic_debug=7 kcs_debug=7 [ 867.851694] IPMI System Interface driver. [ 867.859771] ipmi_si: Trying SMBIOS-specified smic state machine at i/o address 0xecf4, slave address 0x20, irq 0 [ 867.880250] start_smic_transaction - 18 01 [ 867.880263] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.880271] smic_event - state = 1, flags = 0x4c, status = 0xc0 [ 867.880278] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.884133] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.884142] smic_event - state = 2, flags = 0x4c, status = 0xc0 [ 867.884150] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.888117] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.888125] smic_event - state = 3, flags = 0x4c, status = 0xc1 [ 867.888133] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.892229] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.892245] smic_event - state = 5, flags = 0x0c, status = 0xc3 [ 867.892256] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.892270] smic_event - state = 6, flags = 0x0c, status = 0xc3 [ 867.896996] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.897008] smic_event - state = 6, flags = 0xcc, status = 0xc3 [ 867.897020] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.904022] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.904031] smic_event - state = 7, flags = 0xcc, status = 0xc4 [ 867.904038] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.908101] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.908109] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.908117] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.912129] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.912137] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.912145] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.916104] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.916112] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.916120] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.920106] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.920114] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.920121] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.924100] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.924108] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.924115] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.928115] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.928123] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.928130] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.932102] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.932110] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.932118] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.936111] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.936119] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.936127] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.940110] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.940118] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.940127] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.944123] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.944131] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.944139] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.948194] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.948205] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.948215] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.952111] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.952119] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.952127] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.956114] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.956121] smic_event - state = 8, flags = 0xcc, status = 0xc6 [ 867.956129] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.960112] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.960120] smic_event - state = 9, flags = 0x4c, status = 0xc0 [ 867.960126] smic_get result - 1c 01 00 00 00 03 38 01 3f a2 02 00 00 00 [ 867.960155] start_smic_transaction - 18 2f [ 867.960164] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.960172] smic_event - state = 1, flags = 0x4c, status = 0xc0 [ 867.960179] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.964196] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.964204] smic_event - state = 2, flags = 0x4c, status = 0xc0 [ 867.964211] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.968106] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.968114] smic_event - state = 3, flags = 0x4c, status = 0xc1 [ 867.968122] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.972110] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.972118] smic_event - state = 5, flags = 0xcc, status = 0xc3 [ 867.972124] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.972130] smic_event - state = 6, flags = 0xcc, status = 0xc3 [ 867.972137] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.976133] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.976144] smic_event - state = 7, flags = 0xcc, status = 0xc4 [ 867.976155] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.981016] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.981024] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.981032] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.985138] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.985145] smic_event - state = 8, flags = 0xcc, status = 0xc5 [ 867.985153] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.989106] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.989114] smic_event - state = 8, flags = 0xcc, status = 0xc6 [ 867.989121] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.993115] smic_event - smic->smic_timeout = 2000000, time = 100 [ 867.993123] smic_event - state = 9, flags = 0x4c, status = 0xc0 [ 867.993129] smic_get result - 1c 2f 00 2c [ 867.993141] start_smic_transaction - 18 30 08 [ 867.993351] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.993360] smic_event - state = 1, flags = 0x4c, status = 0xc0 [ 867.993367] smic_event - smic->smic_timeout = 2000000, time = 0 [...] [ 867.996183] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.996190] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.996197] smic_event - state = 9, flags = 0x4c, status = 0xc0 [ 867.996203] smic_get result - 1c 30 00 [ 867.996215] smic_event - state = 0, flags = 0x4c, status = 0xc0 [ 867.996220] start_smic_transaction - 18 31 [ 867.996229] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.996236] smic_event - state = 1, flags = 0x4c, status = 0xc0 [ 867.996243] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.996250] smic_event - smic->smic_timeout = 2000000, time = 0 [ 867.996256] smic_event - smic->smic_timeout = 2000000, time = 0 [...] This goes on through megabytes. The modprobe process didn't terminate for 10 minutes, and there was some output like this (cleaned from smic_events all around the place by hand): INFO: task modprobe:6414 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. modprobe D f6805780 0 6414 4077 f48dfe68 00000082 00000000 f6805780 f48dfe48 f90271cf c046acc0 f64f6a0c 2002132c f6da1300 f6da14b4 c182acc0 00000002 f64f6a0c 186f5ef2 000000ca f48dfe30 c0123c40 00000000 f64f69e0 f48dfe30 00000282 00000001 c032456c Call Trace: [<f90271cf>] ? i_ipmi_request+0x8f5/0x916 [ipmi_msghandler] [<c0123c40>] ? check_preempt_wakeup+0x146/0x180 [<c01292c3>] ? try_to_wake_up+0x1f3/0x1fd [<c011c70a>] ? default_spin_lock_flags+0x8/0xe [<c031b81a>] schedule+0x8/0x17 [<f9028745>] ipmi_register_smi+0x3ca/0xba1 [ipmi_msghandler] [<c028681c>] ? put_device+0xf/0x11 [<c028782a>] ? device_add+0x497/0x516 [<c013f2e7>] ? autoremove_wake_function+0x0/0x33 [<fc2d939c>] try_smi_init+0x58f/0x726 [ipmi_si] [<fc2dc3e5>] init_ipmi_si+0x3e2/0x748 [ipmi_si] [<c010304f>] do_one_initcall+0x4a/0x115 [<fc2dc003>] ? init_ipmi_si+0x0/0x748 [ipmi_si] [<c0142c0b>] ? __blocking_notifier_call_chain+0x40/0x4c [<c014ff97>] sys_init_module+0x87/0x18b [<c0107c94>] sysenter_do_call+0x12/0x28 lspci -x of Class ff00: 00:04.0 Class ff00: Dell Embedded Remote Access or ERA/O 00: 28 10 0c 00 17 01 90 02 00 00 00 ff 10 20 80 00 10: 08 00 b8 fe f9 ec 00 00 e9 ec 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 0c 00 30: 00 00 00 fe 48 00 00 00 00 00 00 00 0b 01 00 00 00:04.1 Class ff00: Dell Remote Access Card III 00: 28 10 08 00 03 01 90 02 00 00 00 ff 10 20 80 00 10: 00 20 10 fe 81 ec 00 00 08 00 b0 fe 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 08 00 30: 00 00 00 00 48 00 00 00 00 00 00 00 0a 02 00 00 00:04.2 Class ff00: Dell Embedded Remote Access: BMC/SMIC device 00: 28 10 0d 00 03 01 90 02 00 00 00 ff 10 20 80 00 10: f5 ec 00 00 00 00 00 00 00 00 00 00 00 00 00 00 20: 00 00 00 00 00 00 00 00 00 00 00 00 28 10 0d 00 30: 00 00 00 00 48 00 00 00 00 00 00 00 07 03 00 00 lspci -nv of the same: 00:04.0 ff00: 1028:000c Subsystem: 1028:000c Flags: bus master, medium devsel, latency 32, IRQ 11 Memory at feb80000 (32-bit, prefetchable) [size=4K] I/O ports at ecf8 [size=8] I/O ports at ece8 [size=8] Expansion ROM at fe000000 [disabled] [size=64K] Capabilities: [48] Power Management version 2 00:04.1 ff00: 1028:0008 Subsystem: 1028:0008 Flags: medium devsel, IRQ 23 Memory at fe102000 (32-bit, non-prefetchable) [size=4K] I/O ports at ec80 [size=64] Memory at feb00000 (32-bit, prefetchable) [size=512K] Capabilities: [48] Power Management version 2 Kernel driver in use: serial 00:04.2 ff00: 1028:000d Subsystem: 1028:000d Flags: medium devsel, IRQ 7 I/O ports at ecf4 [size=4] Capabilities: [48] Power Management version 2 -- Regards, Feri. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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