quad g5 powermac: soft lockup when starting gparted

quad g5 powermac: soft lockup when starting gparted

[Johannes Berg]

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Hi,

There's a weird problem here. When I start gparted as a normal user, and
my swap partition is not in use, it locks up and I get the following
after a while:

BUG: soft lockup detected on CPU#0!
NIP: C000000000351218 LR: C0000000002076AC CTR: C000000000207620
REGS: c00000000595b9b0 TRAP: 0901   Not tainted  (2.6.16-rc3-johill)
MSR: 9000000000009032 <EE,ME,IR,DR>  CR: 88000484  XER: 20000000
TASK = c00000000290f040[8812] 'gksu' THREAD: c000000005958000 CPU: 0
GPR00: 0000000080000001 C00000000595BC30 C000000000562B60 C000000004BC7818 
GPR04: 9000000000009032 C0000000003901D8 C0000000003901D8 0000000000000020 
GPR08: C000000000419880 C000000000419880 C000000000419880 0000000000000000 
GPR12: 100000000000D032 C00000000041E980 
NIP [C000000000351218] .lock_kernel+0x58/0x88
LR [C0000000002076AC] .tty_read+0x8c/0x13c
Call Trace:
[C00000000595BC30] [C0000000002076A4] .tty_read+0x84/0x13c (unreliable)
[C00000000595BCF0] [C000000000094C48] .vfs_read+0xd0/0x1b0
[C00000000595BD90] [C000000000095910] .sys_read+0x4c/0x8c
[C00000000595BE30] [C0000000000086F8] syscall_exit+0x0/0x40
Instruction dump:
e91e8000 7d0a4378 800d0008 7d205028 2c090000 40820010 7c00512d 40a2fff0 
4c00012c 2fa90000 41be0020 7d094378 <7c210b78> 80090000 2fa00000 40befff4 


The strange thing is that it does not happen when the swap partition is
in use (though empty) or when I start gparted as root.

johannes

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