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[Bug tapsets/19905] preadv2/pwritev2 missing from syscall tapset
- From: "dsmith at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Mon, 04 Apr 2016 14:11:51 +0000
- Subject: [Bug tapsets/19905] preadv2/pwritev2 missing from syscall tapset
- Auto-submitted: auto-generated
- References: <bug-19905-6586 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=19905
David Smith <dsmith at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|systemtap at sourceware dot org |dsmith at redhat dot com
--- Comment #1 from David Smith <dsmith at redhat dot com> ---
While working on this one, I've discovered a kernel bug - the syscalls were
wired up incorrectly in the x86_64 syscall table. In compat mode, the syscalls
are still wired up to sys_preadv2/sys_pwritev2 instead of
compat_sys_preadv2/compat_sys_pwritev2.
I've sent email to Christoph Hellwig, the author of the patch that added the
syscalls to the x86_64 syscall table. He's agreed that it doesn't look right,
and we're working through the problem.
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