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SubjectRe: Intel P6 vs P7 system call performance

On Wed, 18 Dec 2002, Stephen Rothwell wrote:
> It would help to know what "unhappy" means :-)

Andrew reported an oops in the BIOS. I ahev the full oops info somewhere,
but quite frankly it isn't that readable. It shows

EIP: 00b8:[<000044d7>] Not tainted
ds: 0000 es: 0000 ss: 0068
Call Trace:
[<c0112739>] apm_bios_call+0x75/0xf4
[<c0130000>] cache_init_objs+0x34/0xd8
[<c0112b72>] apm_get_power_status+0x42/0x84
[<c012d843>] __alloc_pages+0x77/0x244
[<c0113828>] apm_get_info+0x38/0xe4
[<c016982d>] proc_file_read+0xa9/0x1ac
[<c0141b53>] vfs_read+0xb7/0x138
[<c0141dee>] sys_read+0x2a/0x40
[<c0108e67>] syscall_call+0x7/0xb

and I suspect the problem is that 0 in ds/es..

> Does the following fix it for you? Untested, assumes cache lines are 32
> bytes.



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