Handle a common BIOS bug on recent ASUS BIOS updates gracefully
Status from this message: Applied.
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Patches in v1 Applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/3 | Fix a memory overflow bug when copying NULL internal package element object to external.drivers/ | +1 | 1 reply | |
| 2/3 | Warn if packages with invalid references are evaluateddrivers/ | +6 | 0 replies | |
| 3/3 | Warn user about a BIOS bug in recent asus boardsdrivers/ | +11 | 8 replies |
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Cover letter [PATCH 0/3] [2.6.25-rc5] Handle a common BIOS bug on recent ASUS BIOS updates gracefully
Hi Len,
the first patch fixes a memory corruption in ACPICA.
Memory corruption should legitimate this as 2.6.25-rc5 material (also because this looks rather safe to do and seem to pop up on a lot recent BIOS updates).
The second patch catches the NULL pointer which is passed on evaluate_reference now, instead of a corrupted pointer.
The third patch tells the user that his BIOS has an invalid reference as a passive cooling device (the invalid reference is the NULL handle now).
I have checked this working (ran into the corrupted memory and NULL pointer) by invalidating a passive trip point and simulate the broken ASUS BIOSes by overriding a DSDT on another system.
The first report which verifies the patches working with a 2.6.24 kernel patched on a real broken ASUS Bios can be found here:
https://bugzilla.novell.com/show_bug.cgi?id=350017
Comment #40:
"Works on the Asus M2N-E and M2A VM HDMI."
Thanks,
Thomas