* 2.6.6-rc3 ia64 smp_call_function() called with interrupts disabled
@ 2004-05-03 2:39 Keith Owens
0 siblings, 0 replies; only message in thread
From: Keith Owens @ 2004-05-03 2:39 UTC (permalink / raw)
To: linux-kernel
2.6.6-rc3, modprobe sg calls vfree() with interrupts disabled. On
ia64, vfree calls smp_flush_tlb_all() which calls smp_call_function().
Calling smp_call_function() with interrupts disabled can deadlock.
Badness in smp_call_function at arch/ia64/kernel/smp.c:312
Call Trace:
[<a0000001000190a0>] show_stack+0x80/0xa0
sp=e00001307811fc40 bsp=e0000130781191c0
[<a000000100058a50>] smp_call_function+0x3d0/0x3e0
sp=e00001307811fe10 bsp=e000013078119160
[<a000000100057e60>] smp_flush_tlb_all+0x40/0x80
sp=e00001307811fe30 bsp=e000013078119140
[<a000000100142850>] unmap_vm_area+0xf0/0x120
sp=e00001307811fe30 bsp=e000013078119108
[<a000000100142ed0>] remove_vm_area+0x150/0x1e0
sp=e00001307811fe30 bsp=e0000130781190e0
[<a000000100142fb0>] __vunmap+0x50/0x1e0
sp=e00001307811fe30 bsp=e0000130781190a0
[<a0000002002ae4d0>] sg_add+0x2d0/0xbe0 [sg]
sp=e00001307811fe30 bsp=e000013078119038
[<a00000010047da40>] class_interface_register+0x1e0/0x2a0
sp=e00001307811fe30 bsp=e000013078119000
[<a0000001005371b0>] scsi_register_interface+0x30/0x60
sp=e00001307811fe30 bsp=e000013078118fe0
[<a0000002002d0200>] init_sg+0x140/0x190 [sg]
sp=e00001307811fe30 bsp=e000013078118fb8
[<a000000100104b40>] sys_init_module+0x3c0/0x660
sp=e00001307811fe30 bsp=e000013078118f48
[<a000000100011be0>] ia64_ret_from_syscall+0x0/0x20
sp=e00001307811fe30 bsp=e000013078118f40
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2004-05-03 2:39 2.6.6-rc3 ia64 smp_call_function() called with interrupts disabled Keith Owens
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