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| author | Andrew Morton <akpm@osdl.org> | 2006-12-06 20:39:59 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 08:39:44 -0800 |
| commit | f1a60dbf68061e5a5364cbc723786b355637ffd3 (patch) | |
| tree | aa7f94e27e7fe110e2729ef1202b486442d1caa8 /Documentation/rt-mutex.txt | |
| parent | a4ed06ad83acc3b7dafc018bc0b27469e787e27d (diff) | |
[PATCH] gcc-4.1.0 is bust
Keith says
Compiling 2.6.19-rc6 with gcc version 4.1.0 (SUSE Linux), wait_hpet_tick is
optimized away to a never ending loop and the kernel hangs on boot in timer
setup.
0000001a <wait_hpet_tick>:
1a: 55 push %ebp
1b: 89 e5 mov %esp,%ebp
1d: eb fe jmp 1d <wait_hpet_tick+0x3>
This is not a problem with gcc 3.3.5. Adding barrier() calls to
wait_hpet_tick does not help, making the variables volatile does.
And the consensus is that gcc-4.1.0 is busted. Suse went and shipped
gcc-4.1.0 so we cannot ban it. Add a warning.
Cc: Keith Owens <kaos@ocs.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/rt-mutex.txt')
0 files changed, 0 insertions, 0 deletions