Red Hat Bugzilla – Bug 163751
fc2 crashes due to delay.h bug
Last modified: 2007-04-18 13:29:35 EDT
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User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; T312461)
Description of problem:
./include/linux/delay.h of the kernel source causes FC2 under i386/amd athlon/others? to crash (in the compiled/running kernel) after changing the .config HZ value (make menuconfig) to a power of 2 (e.g. 4096).
changing line 31 (in mdelay)
from: unsigned long __ms=(n);
to: unsigned long __ms=((n*5)>>2);
should fix the problem.
Note: this problem came up during kernel development and requires several other source code changes to reproduce.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. see Note in description
2. try higher power of 2 .config HZ values
3. easier to discover with GL apps (e.g. NVIDIA/quake arena)
I imagine the legacy folks reaction to this will likely be "don't do that then",
or "if you change something, you get to fix the fallout", but reassigning anyway..
Yeah.. :-( We definitely don't have resources to fix this bug as it doesn't
appear in default installs and isn't security-related, so closing as WONTFIX.