On Tue, 12 May 2009 23:28:59 +0200 Ferenc Wagner <[email protected]> wrote:
> 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 > ... > > [ 867.996243] 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 > Well there have only been a handful of changes to ipmi since 2.6.29. Could you try a mini-bisection? Apply revert-1.patch, test Apply revert-2.patch, test Apply revert-3.patch, test Apply revert-4.patch, test Attached. Thanks.
revert-1.patch
Description: Binary data
revert-2.patch
Description: Binary data
revert-3.patch
Description: Binary data
revert-4.patch
Description: Binary data
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