On 7/22/07, Ingo Molnar <[email protected]> wrote:
enabling CONFIG_PCWATCHDOG=y crashes bzImage bootup, see below. Tested
on latest -git.
Ingo
------------------->
Calling initcall 0xc1e81f8c: pcwd_init_module+0x0/0x14()
WARNING: at lib/kref.c:33 kref_get()
[<c0105f6e>] show_trace_log_lvl+0x19/0x2e
[<c0106067>] show_trace+0x12/0x14
[<c010607d>] dump_stack+0x14/0x16
[<c051aa54>] kref_get+0x37/0x40
[<c0519dfe>] kobject_get+0x12/0x17
[<c06fd12a>] get_bus+0x11/0x21
[<c06fd729>] bus_add_driver+0x18/0x16b
[<c06fe45a>] driver_register+0x66/0x6b
[<c0702575>] isa_register_driver+0x27/0x126
[<c1e81f9e>] pcwd_init_module+0x12/0x14
[<c1e50838>] kernel_init+0x15a/0x2df
[<c0105d87>] kernel_thread_helper+0x7/0x10
=======================
Trying to kref_get() isa_driver.device_driver.bus->subsys.kobj.kref
but it hasn't even been kref_init()'ed yet/already.
WARNING: at lib/kref.c:33 kref_get()
[<c0105f6e>] show_trace_log_lvl+0x19/0x2e
[<c0106067>] show_trace+0x12/0x14
[<c010607d>] dump_stack+0x14/0x16
[<c051aa54>] kref_get+0x37/0x40
[<c0519dfe>] kobject_get+0x12/0x17
[<c051a429>] kobject_init+0x32/0x43
[<c051a4c3>] kobject_register+0x15/0x31
[<c06fd76d>] bus_add_driver+0x5c/0x16b
[<c06fe45a>] driver_register+0x66/0x6b
[<c0702575>] isa_register_driver+0x27/0x126
[<c1e81f9e>] pcwd_init_module+0x12/0x14
[<c1e50838>] kernel_init+0x15a/0x2df
[<c0105d87>] kernel_thread_helper+0x7/0x10
=======================
Trying to kref_get() isa_driver.device_driver.kobj.kset->kobj.kref
but it hasn't even been kref_init()'ed yet/already.
BUG: spinlock bad magic on CPU#0, swapper/1
lock: c1b6a888, .magic: 00000000, .owner: <none>/-1, .owner_cpu: 0
[<c0105f6e>] show_trace_log_lvl+0x19/0x2e
[<c0106067>] show_trace+0x12/0x14
[<c010607d>] dump_stack+0x14/0x16
[<c052b0be>] spin_bug+0xa1/0xa9
[<c052b289>] _raw_spin_lock+0x1e/0x104
[<c1385f7e>] _spin_lock+0x54/0x62
[<c051a026>] kobject_shadow_add+0x84/0x171
[<c051a11d>] kobject_add+0xa/0xc
[<c051a4ca>] kobject_register+0x1c/0x31
[<c06fd76d>] bus_add_driver+0x5c/0x16b
[<c06fe45a>] driver_register+0x66/0x6b
[<c0702575>] isa_register_driver+0x27/0x126
[<c1e81f9e>] pcwd_init_module+0x12/0x14
[<c1e50838>] kernel_init+0x15a/0x2df
[<c0105d87>] kernel_thread_helper+0x7/0x10
=======================
Trying to spin_lock() isa_driver.device_driver.kobj.kset->list_lock
but it hasn't even been spin_lock_init()'ed already.
Greg/Cornelia, any idea when/why would such errors normally occur?
Thanks,
Satyam
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
