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Old 12-13-2011, 08:33 AM
Jurij Smakov
 
Default Bug#649033: Backtrace

The hang is in the initialization code of tpm_tis module. Simply
running

sudo modprobe -b acpi:SMO1200:PNP0C31:
sudo modrpobe -r tpm_tis

a dozen times in a loop was sufficient to trigger it. Here's the
backtrace, courtesy of show-blocked-tasks magic SysRq key command:

[ 1801.675853] SysRq : Show Blocked State
[ 1801.675866] task PC stack pid father
[ 1801.675951] modprobe D ffff88021e252f40 0 3809 3808 0x00000000
[ 1801.675963] ffff880212080930 0000000000000086 0000000000000000 ffff8802155760c0
[ 1801.675973] 0000000000012f40 ffff88021375ffd8 ffff88021375ffd8 ffff880212080930
[ 1801.675983] 0000000000000286 0000000100000286 ffff88021d81ec80 000000010005bc31
[ 1801.675993] Call Trace:
[ 1801.676010] [<ffffffff8132c99d>] ? schedule_timeout+0xa3/0xdb
[ 1801.676021] [<ffffffff810510b3>] ? usleep_range+0x3e/0x3e
[ 1801.676029] [<ffffffff81051bf0>] ? msleep+0x14/0x1c
[ 1801.676041] [<ffffffffa01e3215>] ? tpm_transmit+0x102/0x177 [tpm]
[ 1801.676051] [<ffffffffa01e367b>] ? transmit_cmd.isra.3+0xc/0x24 [tpm]
[ 1801.676059] [<ffffffffa01e3b2a>] ? tpm_get_timeouts+0x5d/0x210 [tpm]
[ 1801.676072] [<ffffffffa026f171>] ? tpm_tis_status+0x1e/0x20 [tpm_tis]
[ 1801.676082] [<ffffffffa026f4e9>] ? wait_for_stat+0x1f/0x18b [tpm_tis]
[ 1801.676093] [<ffffffffa026f171>] ? tpm_tis_status+0x1e/0x20 [tpm_tis]
[ 1801.676102] [<ffffffffa026f825>] ? tpm_tis_send_data+0x131/0x16d [tpm_tis]
[ 1801.676112] [<ffffffffa026fc2d>] ? tpm_tis_init+0x233/0x583 [tpm_tis]
[ 1801.676122] [<ffffffffa026ff7d>] ? tpm_tis_init+0x583/0x583 [tpm_tis]
[ 1801.676133] [<ffffffff811fcc62>] ? pnp_device_probe+0x70/0x9c
[ 1801.676142] [<ffffffff8123dae2>] ? pm_runtime_barrier+0x6e/0x76
[ 1801.676151] [<ffffffff81236f09>] ? driver_probe_device+0xa8/0x138
[ 1801.676158] [<ffffffff81236fe8>] ? __driver_attach+0x4f/0x6f
[ 1801.676165] [<ffffffff81236f99>] ? driver_probe_device+0x138/0x138
[ 1801.676175] [<ffffffff81236239>] ? bus_for_each_dev+0x44/0x78
[ 1801.676184] [<ffffffff812368a1>] ? bus_add_driver+0xa2/0x1f2
[ 1801.676216] [<ffffffffa0345000>] ? 0xffffffffa0344fff
[ 1801.676223] [<ffffffff8123740d>] ? driver_register+0x8d/0xf5
[ 1801.676233] [<ffffffffa0345000>] ? 0xffffffffa0344fff
[ 1801.676241] [<ffffffff81002086>] ? do_one_initcall+0x76/0x12c
[ 1801.676250] [<ffffffffa0345000>] ? 0xffffffffa0344fff
[ 1801.676259] [<ffffffff81074921>] ? sys_init_module+0x10c/0x25b
[ 1801.676269] [<ffffffff81332792>] ? system_call_fastpath+0x16/0x1b

Best regards,
--
Jurij Smakov jurij@wooyd.org
Key: http://www.wooyd.org/pgpkey/ KeyID: C99E03CC



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