[Bug 13886] Suspend to disk no longer works in 2.6.30.2 with an EIDE drive

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http://bugzilla.kernel.org/show_bug.cgi?id=13886


akwatts@ymail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #6 from akwatts@ymail.com  2009-08-04 07:58:37 ---
By way of an update:

(1) You were right, git zeroed in on a false positive. Compiling with
2ea5521022ac8f4f528dcbae02668e02a3501a5a as HEAD fixed s2disk. I apologize for
not having understood what was meant the first time around.

(2) Bisecting between that and 2.6.30 narrowed down the "problem" commit to:
2f0d0fd2a605666d38e290c5c0d2907484352dc4. This is not really a problem (see
below).

(3) Between 2.6.26 and 2.6.28 things broke for me (CPU ran about 17 degrees
hotter while idle). The fix was noapic, nolapic, and pci=noacpi. This issue was
resolved between 2.6.28 and 2.6.30.2 but pci=noacpi was needed to prevent IRQ
problems (because IOAPIC support had been removed from my kernel). It turns out
pci=noacpi, 2f0d0fd2a605666d38e290c5c0d2907484352dc4, and s2disk don't get
along.

(4) I am happy to confirm that 2.6.30.4 works great with the re-insertion of
IOAPIC uniprocessor support in the kernel and removing all APIC and ACPI boot
parameters.

Sorry for the false alarm.

~Andy

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