https://bugzilla.kernel.org/show_bug.cgi?id=64641
Bug ID: 64641
Summary: MacBookPro11,1 SSD access causes kernel panic in
skip_spaces
Product: ACPI
Version: 2.5
Kernel Version: 3.11.6 and 3.12 tested
Hardware: All
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Interrupts
Assignee: acpi_config-interru...@kernel-bugs.osdl.org
Reporter: eyolf...@gmail.com
Regression: No
Note: I have a MacBookPro11,1, I don't know if it affects the 15" inch models
as well.
I discovered an issue with kernel panics caused by what seems like power
management controlling the SSD (both kernel 3.11.6 and 3.12). If I have
powertop open and attempt to access any file system on the SSD (such as using
ls) it'll panic with a null pointer dereference in skip_spaces saying "kernel
panic not syncing: Fatal exception in interrupt".
Booting from a live USB drive I can mount the filesystem and keep powertop open
as long as I want, it's only when I try to "ls" it immediately panics. It
doesn't matter what the filesystem type is (I tried btrfs and fat, not like it
should matter). If I add "acpi=off" to the kernel parameters it won't panic,
but of course modules like i915 will refuse to load without acpi. So, it
appears to be something with the power management of the SSD. Hopefully this is
the correct place for this bug report.
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