https://bugzilla.kernel.org/show_bug.cgi?id=16145
Summary: Unable to boot after "ACPI: Don't let acpi_pad
needlessly mark TSC unstable"
Product: ACPI
Version: 2.5
Kernel Version: 2.6.35-rc[1,2]
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Other
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: Yes
It looks like commit 0dc698b93f3eecdda43b22232131324eb41e510c
causes init to segfault at boot time on one of my computers.
Reverting 0dc698b9 on top of 2.6.35-rc2 solves the problem.
FWIW, the problem does not occur on my laptop (ThinkPad X60) with (mostly) the
same software and the same kernel.
The output on failed boot (2.6.35-rc2) is:
INIT: version 2.86 booting
init[1]: segfult at ffffffff8100896d ip ffffffff8100896d sp 00007fff734b04c8
error 15
init[1]: segfult at ffffffff8100896d ip ffffffff8100896d sp 00007fff734b04c8
error 15
Kernel panic - not syncing: Attempted to kill init!
Pid: 1, comm: init Not tainted 2.6.35-rc2-TEG #93
Call Trace:
[ffffffff814d1a74] panic+0x86/0xf4
[ffffffff8108d5b4] ? perf_event_exit_task+0x27/0x112
[ffffffff8103d118] do_exit+0x6d/0x687
[ffffffff8103d9a5] do_group_exit+0x70/0x98
[ffffffff8104a1e4] get_signal_to_deliver+0x330/0x34e
[ffffffff810014da] do_signal+0x6d/0x65b
[ffffffff814d1b1e] ? printk+0x3c/0x3e
[ffffffff8100896d] ? rdtsc_barrier+0x0/0xc
[ffffffff814d1b1e] ? printk+0x3c/0x3e
[ffffffff81020811] ? __bad_area_nosemaphore+0x179/0x1a3
[ffffffff8100896d] ? rdtsc_barrier+0x0/0xc
[ffffffff81001b03] do_notify_resume+0x27/0x47
[ffffffff814d3a9a] retint_signal+0x3d/0x83
[ffffffff8100896d] ? rdtsc_barrier+0x0/0xc
[drm:drm_fb_helper_panic] *ERROR* panic occurred, switching back to text
console
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