http://bugzilla.kernel.org/show_bug.cgi?id=6450
Summary: soft lockup on suspend to mem if cpufreq loaded
Kernel Version: 2.6.16.11
Status: NEW
Severity: normal
Owner: [EMAIL PROTECTED]
Submitter: [EMAIL PROTECTED]
Most recent kernel where this bug did not occur: From testing with liveCDs,
around 2.6.12.
Distribution: Debian
Hardware Environment: Dell Latitude D510
Software Environment: reproduced in KDE/Xorg7 and from console
Problem Description: When the speedstep_centrino module is loaded, suspend will
produce a lockup.
Steps to reproduce:
1) modprobe speedstep_centrino
2) echo mem > /sys/power/state
3) press power key to resume and lockup
I've tried this with and without the cpufreq_userspace module loaded. Since
suspend seems to disable the serial console, I've copied all of this manually.
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0
BUG: soft lockup detected on CPU#0!
Pid: 4, comm: events/0
EIP: 0060:[<c01373c7>] CPU: 0
EIP is at handle_IRQ_event+0x18/0x69
EFLAGS: 00000246 Not tainted (2.6.16.11+z4 #1)
EAX: 0000000b EBX: f7bbfcc0 ECX: f7bbfcc0 EDX: c1907ee8
ESI: 00000000 EDI: c1907ee8 EBP: c1907ee8 DS: 007b ES: 007b
CR0: 8005003b CR2: 80050033 CR3: 37030000 CR4: 000006d0
[<c01df6de>] vgacon_switch+0x77/0xcc
[<c0102e14>] apic_timer_interrupt+0x1c/0x24
[<c01374e0>] __do_IRQ+0x58/0xa8
[<c01048ef>] do_IRQ+0x19/0x2a
[<c0102df2>] common_interrupt+0x1a/0x20
[<c033d019>] schedule+0x302/0x5b1
[<c01265ae>] worker_thread+0x14c/0x14e
[<c01265ae>] worker_thread+0x14c/0x14e
[<c0115394>] default_wake_function+0x0/0x15
[<c01291eb>] kthread+0xd2/0xd6
[<c0126462>] worker_thread+0x0/0x14e
[<c0129119>] kthread+0x0/0xd6
[<c0101005>] kernel_thread_helper+0x5/0xb
Kernel config is at http://daniel.6dns.org/misc/config-2.6.16+z4 if needed
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