Andrew Morton a écrit :
On Mon, 14 May 2007 21:17:47 -0700 [email protected] wrote:
http://bugzilla.kernel.org/show_bug.cgi?id=8479
Summary: gettimeofday returning 1000000 in tv_usec on core2duo
Kernel Version: 2.6.21
Status: NEW
Severity: normal
Owner: [email protected]
Submitter: [email protected]
Most recent kernel where this bug did *NOT* occur: 2.6.20
Distribution: Gentoo
Hardware Environment: core2duo T7200 (all reporters had this same CPU)
Software Environment: Linux 2.6.21, glibc 2.5
Problem Description:
gettimeofday returns 1 - 1000000 in tv_usec, not 0 - 999999
This does not happen on any of my AMD-based 32 or 64 bit boxes, only on my
core2duo; I have 2 other reports of this problem, all on T7200's
Steps to reproduce:
call gettimeofday a lot. Eventually, you'll get 1000000 returned in tv_usec. My
average is ~1 in 1000000 calls. I've attached my test program, with output from
various boxes. One of the other reporters tried the test program too, and got
similar output. .config will be attached too.
err, whoops.
I remember I already hit this and corrected it
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blobdiff;f=arch/x86_64/kernel/vsyscall.c;h=dc32cef961950915fbaa185e36ab802d5f7cea3b;hp=ba330f87067996a17495f7d03466d646c718b52c;hb=c8118c6c07f2edfd697aaa0b93e08c3b65a5a675;hpb=272a3713bb9e302e0455c894c41180a482d2c8a3
Maybe a stable push is necessary ?
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