Your message dated Tue, 18 Oct 2016 22:56:54 +0200
with message-id <20161018205654.j3t722x5wyup7...@aurel32.net>
and subject line Re: Bug#841240: linux: x32 preadv/pwritev syscalls broken in
kernel 4.7
has caused the Debian Bug report #841240,
regarding linux: x32 preadv/pwritev syscalls broken in kernel 4.7
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
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--
841240: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=841240
Debian Bug Tracking System
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--- Begin Message ---
Source: linux
Version: 4.7.6-1
Severity: normal
The x32 preadv/pwritev syscalls have been broken in kernel 4.7-rc1 by
this commit:
| commit 482dd2ef124484601adea82e5e806e81e2bc5521
| Author: Christoph Hellwig <h...@lst.de>
| Date: Thu Apr 7 22:43:59 2016 +0200
|
| x86/syscalls: Wire up compat readv2/writev2 syscalls
|
| Reported-by: David Smith <dsm...@redhat.com>
| Tested-by: David Smith <dsm...@redhat.com>
| Signed-off-by: Christoph Hellwig <h...@lst.de>
| Cc: Andy Lutomirski <l...@amacapital.net>
| Cc: Borislav Petkov <b...@alien8.de>
| Cc: Brian Gerst <brge...@gmail.com>
| Cc: Denys Vlasenko <dvlas...@redhat.com>
| Cc: H. Peter Anvin <h...@zytor.com>
| Cc: Linus Torvalds <torva...@linux-foundation.org>
| Cc: Peter Zijlstra <pet...@infradead.org>
| Cc: Thomas Gleixner <t...@linutronix.de>
| Link: http://lkml.kernel.org/r/20160407204359.ga3...@lst.de
| Signed-off-by: Ingo Molnar <mi...@kernel.org>
It causes the glibc testsuite to fail on x32 when running a 4.7 kernel,
and more precisely the misc/tst-preadvwritev and misc/tst-preadvwritev64
tests.
The syscalls have been fixed in kernel 4.8-rc1 by this commit, even if
neither the commit nor the mail it refers too talk about a breakage:
| commit 3ebfd81f7fb3e81a754e37283b7f38c62244641a
| Author: H.J. Lu <hjl.to...@gmail.com>
| Date: Thu Jul 14 12:31:53 2016 -0700
|
| x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
|
| Don't use the same syscall numbers for 2 different syscalls:
|
| 534 x32 preadv compat_sys_preadv64
| 535 x32 pwritev compat_sys_pwritev64
| 534 x32 preadv2 compat_sys_preadv2
| 535 x32 pwritev2 compat_sys_pwritev2
|
| Add compat_sys_preadv64v2() and compat_sys_pwritev64v2() so that 64-bit
offset
| is passed in one 64-bit register on x32, similar to compat_sys_preadv64()
| and compat_sys_pwritev64().
|
| Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
|
| x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
|
| Don't use the same syscall numbers for 2 different syscalls:
|
| 534 x32 preadv compat_sys_preadv64
| 535 x32 pwritev compat_sys_pwritev64
| 534 x32 preadv2 compat_sys_preadv2
| 535 x32 pwritev2 compat_sys_pwritev2
|
| Add compat_sys_preadv64v2() and compat_sys_pwritev64v2() so that 64-bit
offset
| is passed in one 64-bit register on x32, similar to compat_sys_preadv64()
| and compat_sys_pwritev64().
|
| Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
| Cc: Andy Lutomirski <l...@kernel.org>
| Cc: Borislav Petkov <b...@alien8.de>
| Cc: Brian Gerst <brge...@gmail.com>
| Cc: Christoph Hellwig <h...@lst.de>
| Cc: Denys Vlasenko <dvlas...@redhat.com>
| Cc: H. Peter Anvin <h...@zytor.com>
| Cc: Josh Poimboeuf <jpoim...@redhat.com>
| Cc: Linus Torvalds <torva...@linux-foundation.org>
| Cc: Peter Zijlstra <pet...@infradead.org>
| Cc: Thomas Gleixner <t...@linutronix.de>
| Link:
http://lkml.kernel.org/r/came9roovcmf-rqfx_n1u_tu_dx1bykjtfr%3dq4-_pfvsj9bc...@mail.gmail.com
| Signed-off-by: Ingo Molnar <mi...@kernel.org>
Unfortunately this commit is not easily backportable as it completely
breaks the ABI. Nevertheless it should not be a big deal as we'll go to
kernel 4.8 soon. Given it is already available in experimental, I am
just going to close this bug in a few minutes. I just wanted to make
sure the issue is documented somewhere so that someone else do not spend
hours before finding the issue.
-- System Information:
Debian Release: stretch/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.7.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
--- End Message ---
--- Begin Message ---
Version: 4.8~rc5-1~exp1
On 2016-10-18 22:47, Aurelien Jarno wrote:
> Source: linux
> Version: 4.7.6-1
> Severity: normal
>
> The x32 preadv/pwritev syscalls have been broken in kernel 4.7-rc1 by
> this commit:
>
> | commit 482dd2ef124484601adea82e5e806e81e2bc5521
> | Author: Christoph Hellwig <h...@lst.de>
> | Date: Thu Apr 7 22:43:59 2016 +0200
> |
> | x86/syscalls: Wire up compat readv2/writev2 syscalls
> |
> | Reported-by: David Smith <dsm...@redhat.com>
> | Tested-by: David Smith <dsm...@redhat.com>
> | Signed-off-by: Christoph Hellwig <h...@lst.de>
> | Cc: Andy Lutomirski <l...@amacapital.net>
> | Cc: Borislav Petkov <b...@alien8.de>
> | Cc: Brian Gerst <brge...@gmail.com>
> | Cc: Denys Vlasenko <dvlas...@redhat.com>
> | Cc: H. Peter Anvin <h...@zytor.com>
> | Cc: Linus Torvalds <torva...@linux-foundation.org>
> | Cc: Peter Zijlstra <pet...@infradead.org>
> | Cc: Thomas Gleixner <t...@linutronix.de>
> | Link: http://lkml.kernel.org/r/20160407204359.ga3...@lst.de
> | Signed-off-by: Ingo Molnar <mi...@kernel.org>
>
> It causes the glibc testsuite to fail on x32 when running a 4.7 kernel,
> and more precisely the misc/tst-preadvwritev and misc/tst-preadvwritev64
> tests.
>
> The syscalls have been fixed in kernel 4.8-rc1 by this commit, even if
> neither the commit nor the mail it refers too talk about a breakage:
>
> | commit 3ebfd81f7fb3e81a754e37283b7f38c62244641a
> | Author: H.J. Lu <hjl.to...@gmail.com>
> | Date: Thu Jul 14 12:31:53 2016 -0700
> |
> | x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
> |
> | Don't use the same syscall numbers for 2 different syscalls:
> |
> | 534 x32 preadv compat_sys_preadv64
> | 535 x32 pwritev compat_sys_pwritev64
> | 534 x32 preadv2 compat_sys_preadv2
> | 535 x32 pwritev2 compat_sys_pwritev2
> |
> | Add compat_sys_preadv64v2() and compat_sys_pwritev64v2() so that 64-bit
> offset
> | is passed in one 64-bit register on x32, similar to
> compat_sys_preadv64()
> | and compat_sys_pwritev64().
> |
> | Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
> |
> | x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
> |
> | Don't use the same syscall numbers for 2 different syscalls:
> |
> | 534 x32 preadv compat_sys_preadv64
> | 535 x32 pwritev compat_sys_pwritev64
> | 534 x32 preadv2 compat_sys_preadv2
> | 535 x32 pwritev2 compat_sys_pwritev2
> |
> | Add compat_sys_preadv64v2() and compat_sys_pwritev64v2() so that 64-bit
> offset
> | is passed in one 64-bit register on x32, similar to
> compat_sys_preadv64()
> | and compat_sys_pwritev64().
> |
> | Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
> | Cc: Andy Lutomirski <l...@kernel.org>
> | Cc: Borislav Petkov <b...@alien8.de>
> | Cc: Brian Gerst <brge...@gmail.com>
> | Cc: Christoph Hellwig <h...@lst.de>
> | Cc: Denys Vlasenko <dvlas...@redhat.com>
> | Cc: H. Peter Anvin <h...@zytor.com>
> | Cc: Josh Poimboeuf <jpoim...@redhat.com>
> | Cc: Linus Torvalds <torva...@linux-foundation.org>
> | Cc: Peter Zijlstra <pet...@infradead.org>
> | Cc: Thomas Gleixner <t...@linutronix.de>
> | Link:
> http://lkml.kernel.org/r/came9roovcmf-rqfx_n1u_tu_dx1bykjtfr%3dq4-_pfvsj9bc...@mail.gmail.com
> | Signed-off-by: Ingo Molnar <mi...@kernel.org>
>
> Unfortunately this commit is not easily backportable as it completely
> breaks the ABI. Nevertheless it should not be a big deal as we'll go to
> kernel 4.8 soon. Given it is already available in experimental, I am
> just going to close this bug in a few minutes. I just wanted to make
> sure the issue is documented somewhere so that someone else do not spend
> hours before finding the issue.
As said above, it's not worthwhile spending time on that. Marking the
bug as fixed in 4.8.
--
Aurelien Jarno GPG: 4096R/1DDD8C9B
aurel...@aurel32.net http://www.aurel32.net
--- End Message ---
