glibc 2.12's pthread_cond_signal() is broken on UML because it does not
have FUTEX_WAKE_OP.
The issue got fixed in 2.12.2:
http://sourceware.org/ml/libc-alpha/2010-08/msg00019.html
Sadly, some distros (like CentOS 6.0) still ship glibc 2.12.1.
So you have to expect problems when them on top of
when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang yong.zha...@gmail.com
Acked-by: Richard Weinberger rich...@nod.at
signature.asc
Description: OpenPGP digital signature
Am 30.08.2011 04:48, schrieb Al Viro:
On Tue, Aug 30, 2011 at 01:23:31AM +0100, Al Viro wrote:
On Tue, Aug 30, 2011 at 12:25:25AM +0200, Richard Weinberger wrote:
I'm building most of the time static.
Using defconfig and
CONFIG_STATIC_LINK=y
it builds fine here (x86_64 and i386)
32bit
implementation.
This workaround comes originally from Jeff Dike:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494995#35
]
CC: jd...@addtoit.com
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Makefile |2 +-
1 files changed, 1
j.neuschae...@gmx.net
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/xterm.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index 8ac7146..2e1de57 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers
[PATCH 1/9] um: disable CMPXCHG_DOUBLE as it breaks UML build
[PATCH 2/9] um: drivers/xterm.c: fix a file descriptor leak
[PATCH 3/9] um: Save FPU registers between task switches
[PATCH 4/9] um: fix oopsable race in line_close()
[PATCH 5/9] um: winch_interrupt() can happen inside of free_winch()
is disabled for UML.
Signed-off-by: Thadeu Lima de Souza Cascardo casca...@holoscopio.com
Cc: Christoph Lameter c...@linux.com
Cc: Jeff Dike jd...@addtoit.com
Cc: Richard Weinberger rich...@nod.at
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Kconfig.x86 |4
1 files changed
will blow up trying to dereference
pointers from kfree'd struct tty.
Fix is obvious: we need to use a counter of our own.
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/line.c| 25 -
arch/um/include
From: Al Viro v...@ftp.linux.org.uk
It's 32bit-only, not 64bit-only... And while we are at it, it's
set_fpxregs(), not set_fpregs()...
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-i386/ptrace.c | 14 +-
arch/um
From: Al Viro v...@ftp.linux.org.uk
... so set winch-fd to -1 before doing free_irq(), to avoid having
winch_interrupt() come from/during the latter and attempt to do
reactivate_fd() on something that's already gone.
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard
...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/line.c | 38 --
1 files changed, 24 insertions(+), 14 deletions(-)
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 91bf1894..364c8a1 100644
--- a/arch
process.
The patch below reintroduces the saving and restoring of the FP context
between task switches.
Signed-off-by: Ingo van Lil ing...@gmx.de
Signed-off-by: Richard Weinberger rich...@nod.at
Reported-by: gunnarlindr...@hotmail.com
Tested-by: gunnarlindr...@hotmail.com
CC: Stanislav Meduna st
j.neuschae...@gmx.net
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/xterm.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c
index 8ac7146..2e1de57 100644
--- a/arch/um/drivers/xterm.c
+++ b/arch/um/drivers
...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/line.c | 38 --
1 files changed, 24 insertions(+), 14 deletions(-)
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index 91bf1894..364c8a1 100644
--- a/arch
Sorry for sending this patch series again.
My mail server thought I'm a spammer. :-\
[PATCH 1/9] um: disable CMPXCHG_DOUBLE as it breaks UML build
[PATCH 2/9] um: drivers/xterm.c: fix a file descriptor leak
[PATCH 3/9] um: Save FPU registers between task switches
[PATCH 4/9] um: fix oopsable race
is disabled for UML.
Signed-off-by: Thadeu Lima de Souza Cascardo casca...@holoscopio.com
Cc: Christoph Lameter c...@linux.com
Cc: Jeff Dike jd...@addtoit.com
Cc: Richard Weinberger rich...@nod.at
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Kconfig.x86 |4
1 files changed
process.
The patch below reintroduces the saving and restoring of the FP context
between task switches.
Signed-off-by: Ingo van Lil ing...@gmx.de
Signed-off-by: Richard Weinberger rich...@nod.at
Reported-by: gunnarlindr...@hotmail.com
Tested-by: gunnarlindr...@hotmail.com
CC: Stanislav Meduna st
From: Al Viro v...@ftp.linux.org.uk
1) take subarch-specific stuff to subarch_ptrace()
2) PTRACE_{PEEK,POKE}{TEXT,DATA} is handled by ptrace_request() just fine...
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/ptrace
will blow up trying to dereference
pointers from kfree'd struct tty.
Fix is obvious: we need to use a counter of our own.
Signed-off-by: Al Viro v...@zeniv.linux.org.uk
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/line.c| 25 -
arch/um/include
Am 29.08.2011 23:27, schrieb Andrew Morton:
Subject: [PATCH 8/9] um: fix strrchr problems
What are the problems?
On Mon, 29 Aug 2011 18:13:38 +0200
Richard Weinbergerrich...@nod.at wrote:
From: Al Virov...@ftp.linux.org.uk
Several years old patch, originally by jdike, I think...
Am 30.08.2011 00:12, schrieb Al Viro:
On Mon, Aug 29, 2011 at 11:38:39PM +0200, Richard Weinberger wrote:
ok, I give up. How does this work?
*grrr*, you can drop this patch.
To my excuse, I've dropped it already from my queue but after
pulling a second time from Al's git branch it made
Am 30.08.2011 00:19, schrieb Al Viro:
On Tue, Aug 30, 2011 at 12:15:59AM +0200, Richard Weinberger wrote:
Am 30.08.2011 00:12, schrieb Al Viro:
On Mon, Aug 29, 2011 at 11:38:39PM +0200, Richard Weinberger wrote:
ok, I give up. How does this work?
*grrr*, you can drop this patch.
To my
Am 23.08.2011 19:07, schrieb Al Viro:
On Tue, Aug 23, 2011 at 06:58:18PM +0200, Richard Weinberger wrote:
What about this hack/solution?
While booting UML can check whether the host's vDSO contains
a SYSCALL instruction.
If so, UML will not make the host's vDSO available to it's
processes
Am 23.08.2011 18:53, schrieb Al Viro:
On Tue, Aug 23, 2011 at 09:29:29AM -0700, Linus Torvalds wrote:
Oh yes.
System call performance is *important*. And x86 is *important*.
UML? In comparison, not that important.
So quite frankly, if this is purely an UML issue (and unless we're
missing
Am 23.08.2011 19:07, schrieb Al Viro:
On Tue, Aug 23, 2011 at 06:58:18PM +0200, Richard Weinberger wrote:
What about this hack/solution?
While booting UML can check whether the host's vDSO contains
a SYSCALL instruction.
If so, UML will not make the host's vDSO available to it's
processes
Hi!
UserModeLinux is using the arch specific module functions from
arch/x86/kernel/module.c.
On i386 this works perfectly fine but on x86_64 it causes problems.
apply_relocate_add() assumes modules compiled with -mcmodel=kernel
because the kernel lives in the negative 2GiB of the address
Am 20.08.2011 03:18, schrieb Al Viro:
3) with the previous two issues dealt with, we get the following magical
mistery shite when running 32bit uml kernel + userland on 64bit host:
* the system boots all the way to getty/login and sshd (i.e. gets
through the debian /etc/init.d
Am 20.08.2011 22:14, schrieb Al Viro:
On Sat, Aug 20, 2011 at 05:22:23PM +0200, Richard Weinberger wrote:
Hmmm, very strange.
Sadly I cannot reproduce the issue. :(
Everything works fine within UML.
(Of course I've applied your vDSO/i386 patches)
My test setup:
Host kernel: 2.6.37
Am 20.08.2011 23:26, schrieb Andrew Lutomirski:
On Sat, Aug 20, 2011 at 4:55 PM, Richard Weinbergerrich...@nod.at wrote:
Am 20.08.2011 22:14, schrieb Al Viro:
On Sat, Aug 20, 2011 at 05:22:23PM +0200, Richard Weinberger wrote:
Hmmm, very strange.
Sadly I cannot reproduce the issue
Am 19.08.2011 06:31, schrieb Al Viro:
On Thu, Aug 18, 2011 at 08:19:46PM +0100, Al Viro wrote:
On Thu, Aug 18, 2011 at 09:12:47PM +0200, Richard Weinberger wrote:
Have you touched your patches since yesterday?
I've already pulled and uploaded them to my shiny new git repo at:
git
Am 18.08.2011 08:29, schrieb Stanislav Meduna:
On 17.08.2011 22:58, Richard Weinberger wrote:
It looks like FPU registers get sometimes lost after switching between
two or more threads.
This is probably a bug in UML I reported nearly three years ago.
For me mode=skas0 worked aruond
Al,
Am 18.08.2011 20:58, schrieb Al Viro:
My apologies for mailbomb from hell. *All* this stuff is available in
git://git.kernel.org/pub/scm/linux/kernel/git/viro/um-header.git/ #master,
but since uml folks had been stuck with mail and patch for a long time...
Have you touched your patches
call_usermodehelper,
arg=0x9c6bce0,
jmp_ptr=0x9c73d94)
at arch/um/os-Linux/process.c:268
#24 0x080588cb in new_thread_handler () at arch/um/kernel/process.c:153
#25 0x in ?? ()
---cut---
Not-Signed-off-by: Richard Weinberger rich...@nod.at
---
diff --git a/ipc/shm.c b/ipc/shm.c
index
Hi Vasiliy,
On Montag 01 August 2011 15:49:11 Vasiliy Kulikov wrote:
Hi Richard,
On Mon, Aug 01, 2011 at 15:41 +0200, Richard Weinberger wrote:
5774ed01 (shm: handle separate PID namespaces case)
b34a6b1d (ipc: introduce shm_rmid_forced sysctl)
4c677e2e (shm: optimize locking
On Montag 01 August 2011 19:10:42 Vasiliy Kulikov wrote:
On Mon, Aug 01, 2011 at 18:01 +0200, Marc Zyngier wrote:
It also breaks ARM (at least 11MPCore and Cortex A9).
The same workaround gets the kernel booting again.
Can you please apply this patch and show the output?
I suppose all
Am Samstag 23 Juli 2011, 01:01:27 schrieb Andrew Morton:
On Thu, 21 Jul 2011 11:18:31 +0200
Richard Weinberger rich...@nod.at wrote:
Implement arch_vma_name() and make get_gate_vma(),
in_gate_area() and in_gate_area_no_mm() a nop.
We need arch_vma_name() to support vDSO.
Well
From: Vitaliy Ivanov vitaliva...@gmail.com
Do not free memory when you failed to allocate it.
Signed-off-by: Vitaliy Ivanov vitaliva...@gmail.com
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/slip_user.c |3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff
GCC 4.6's -Wunused-but-set-variable found some dead code.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/chan_kern.c |3 +--
arch/um/drivers/line.c |3 +--
arch/um/kernel/reboot.c |3 +--
3 files changed, 3 insertions(+), 6 deletions(-)
diff --git
Implement arch_vma_name() and make get_gate_vma(),
in_gate_area() and in_gate_area_no_mm() a nop.
We need arch_vma_name() to support vDSO.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-x86_64/asm/elf.h |1 +
arch/um/sys-x86_64/mem.c | 22 ++
2
still uses the vsyscall page for static binaries this
patch improves the situation only for dynamic binaries.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-x86_64/Makefile |2 +
arch/um/sys-x86_64/asm/elf.h |9 +++
arch/um/sys-x86_64/vdso/Makefile
When UML is unable to reuse the host's vDSO FIXADDR_USER_START
is zero.
To handle this special case correclty we have to implement custom
gate area helper methods.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-i386/Makefile |2 +-
arch/um/sys-i386/asm/elf.h |2 +
arch
From: Davidlohr Bueso d...@gnu.org
When creating the temp file there's a memory and file descriptor leak upon
error.
Signed-off-by: Davidlohr Bueso d...@gnu.org
Signed-off-by: Richard Weinberger rich...@nod.at
Reviewed-by: Vitaliy Ivanov vitaliva...@gmail.com
---
arch/um/os-Linux/mem.c |6
Linux can have pids up to 4*1024*1024.
To handle such huge numbers pid_buf needs to be larger.
Reported-by: Geert Uytterhoeven ge...@linux-m68k.org
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/harddog_user.c |2 +-
1 files changed, 1 insertions(+), 1 deletions
Reusing the host's vDSO makes only sense on x86_32.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/Makefile |4 +++-
arch/um/os-Linux/elf_aux.c |7 +--
arch/um/os-Linux/main.c|4
3 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/arch
From: Vitaliy Ivanov vitaliva...@gmail.com
Perform memory cleanup on exit.
On receiving invalid 'pid' we still should clean 'output' variable.
Signed-off-by: Vitaliy Ivanov vitaliva...@gmail.com
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/net_user.c |5 -
1
Am Mittwoch 20 Juli 2011, 19:54:02 schrieb Andy Lutomirski:
On 07/18/2011 09:07 AM, Richard Weinberger wrote:
Until now UML had no x86_64 vDSO.
So glibc always used the vsyscall page for gettimeday()
and friends.
Calls to gettimeday() returned falsely the host time and
confused some
still uses the vsyscall page for static binaries this
patch improves the situation only for dynamic binaries.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-x86_64/Makefile |2 +
arch/um/sys-x86_64/asm/elf.h |9 +++
arch/um/sys-x86_64/vdso/Makefile
Reusing the host's vsyscall area makes only sense on x86_32.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/Makefile |4 +++-
arch/um/os-Linux/elf_aux.c |7 +--
arch/um/os-Linux/main.c|4
3 files changed, 8 insertions(+), 7 deletions(-)
diff
Implement arch_vma_name() and make get_gate_vma(),
in_gate_area() and in_gate_area_no_mm() a nop.
We need arch_vma_name() to support vDSO.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/sys-x86_64/asm/elf.h |1 +
arch/um/sys-x86_64/mem.c | 22 ++
2
Am Freitag 08 Juli 2011, 12:16:20 schrieb Vitaliy Ivanov:
On Thu, Jul 7, 2011 at 7:48 PM, Richard Weinberger rich...@nod.at wrote:
Am Donnerstag 07 Juli 2011, 18:37:48 schrieb Vitaliy Ivanov:
From 6db3c87f57e3e61d968da79f01fb21ba17fd5bc0 Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov
Am Freitag 08 Juli 2011, 12:30:56 schrieb Vitaliy Ivanov:
On Thu, Jul 7, 2011 at 8:27 PM, Richard Weinberger rich...@nod.at wrote:
Am Donnerstag 07 Juli 2011, 18:36:02 schrieb Vitaliy Ivanov:
From 9b9f36f46aa708c3245f5ded83f96421966b2edf Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov
vitaliva...@gmail.com
Signed-off-by: Richard Weinberger rich...@nod.at
Why are you adding my Signed-off-by?!
That's my job...
---
arch/um/drivers/net_user.c |5 -
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/arch/um/drivers/net_user.c b/arch/um/drivers/net_user.c
Am Donnerstag 07 Juli 2011, 15:08:22 schrieb Vitaliy Ivanov:
On Thu, Jul 7, 2011 at 7:02 AM, Davidlohr Bueso d...@gnu.org wrote:
From: Davidlohr Bueso d...@gnu.org
When creating the temp file there's a memory and file descriptor leak
upon error.
Signed-off-by: Davidlohr Bueso
Am Donnerstag 07 Juli 2011, 18:37:48 schrieb Vitaliy Ivanov:
From 6db3c87f57e3e61d968da79f01fb21ba17fd5bc0 Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov vitaliva...@gmail.com
Date: Thu, 7 Jul 2011 19:29:06 +0300
Subject: [PATCH 3/3] uml: os-Linux/main.c memory leak fix
We should cleanup
Am Donnerstag 07 Juli 2011, 18:36:02 schrieb Vitaliy Ivanov:
From 9b9f36f46aa708c3245f5ded83f96421966b2edf Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov vitaliva...@gmail.com
Date: Thu, 7 Jul 2011 19:23:13 +0300
Subject: [PATCH 1/3] uml: drivers/net_user.c memory leak fix
Perform memory
Am Dienstag 05 Juli 2011, 01:15:41 schrieb Vitaliy Ivanov:
From 6201d3e862fca8670b206338dc90303ea0acc77d Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov vitaliva...@gmail.com
Date: Tue, 5 Jul 2011 01:57:51 +0300
Subject: [PATCH 1/4] uml: cow_user.c warning corrections
MIME-Version: 1.0
Am Dienstag 05 Juli 2011, 01:15:47 schrieb Vitaliy Ivanov:
From 7296c5b9770e95cd6ad4e9e71d2d14c972abdfe1 Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov vitaliva...@gmail.com
Date: Tue, 5 Jul 2011 02:03:06 +0300
Subject: [PATCH 2/4] uml: helper.c warning corrections
MIME-Version: 1.0
Am Dienstag 05 Juli 2011, 13:10:34 schrieb Vitaliy Ivanov:
On Tue, Jul 5, 2011 at 12:28 PM, Richard Weinberger rich...@nod.at wrote:
Am Dienstag 05 Juli 2011, 01:15:41 schrieb Vitaliy Ivanov:
From 6201d3e862fca8670b206338dc90303ea0acc77d Mon Sep 17 00:00:00 2001
From: Vitaliy Ivanov
Am Mittwoch 29 Juni 2011, 17:37:54 schrieb Vitaliy Ivanov:
On Tue, Jun 28, 2011 at 1:15 AM, Richard Weinberger rich...@nod.at wrote:
When UML is compiled with _FORTIFY_SOURCE we have to
export all _chk() functions which are used in modules.
For now it's only the case for __sprintf_chk
Am Mittwoch 29 Juni 2011, 18:42:43 schrieb Geert Uytterhoeven:
On Wed, Jun 29, 2011 at 17:42, Richard Weinberger rich...@nod.at wrote:
Am Mittwoch 29 Juni 2011, 17:37:54 schrieb Vitaliy Ivanov:
On Tue, Jun 28, 2011 at 1:15 AM, Richard Weinberger rich...@nod.at wrote:
When UML is compiled
Am Montag 27 Juni 2011, 17:27:33 schrieb Randy Dunlap:
On Mon, 27 Jun 2011 16:16:56 +1000 Stephen Rothwell wrote:
Hi all,
Changes since 20110624:
uml defconfig builds on x86 (32-bit and 64-bit) fail with:
fs/hostfs/hostfs_kern.c:756: error: 'mask' undeclared (first use in this
When UML is compiled with _FORTIFY_SOURCE we have to
export all _chk() functions which are used in modules.
For now it's only the case for __sprintf_chk().
Tested-by: Florian Fainelli flor...@openwrt.org
Reported-by: Florian Fainelli flor...@openwrt.org
Signed-off-by: Richard Weinberger rich
To make netconsole usable on UML, it's ethernet driver
needs netpoll support.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/net_kern.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers
From: Mathias Krause mini...@googlemail.com
The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.
Signed-off-by: Mathias Krause mini...@googlemail.com
Cc: Richard Weinberger rich...@nod.at
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/kernel
, kconfig falls back to the
default string Linux Kernel Configuration.
Add a suitable mainmenu to the main UML Kconfig file to fix this.
Signed-off-by: Geert Uytterhoeven ge...@linux-m68k.org
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Kconfig.x86 |2 ++
1 files changed, 2
Both sys-i386 and sys-x86_64 support now ndelay().
The delay functions are based on arch/x86/lib/delay.c.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/delay.h | 10 +++
arch/um/sys-i386/delay.c| 59 --
arch/um/sys
Am Samstag 18 Juni 2011, 23:34:25 schrieb Geert Uytterhoeven:
commit 0954828fcbf3bd13d593499b16b901a4e801b0b9 (kconfig: replace
KERNELVERSION usage by the mainmenu's prompt) made the kernel version
disappear from the generated .config file when configuring for UML.
As UML's Kconfig doesn't
There is no need to define VM_{STACK,DATA}_DEFAULT_FLAGS as
variable.
It's also useless to test for TIF_IA32 as 64bit UML has no
IA32 emulation.
Signed-off-by: Richard Weinberger rich...@nod.at
CC: randy.dun...@oracle.com
CC: mho...@suse.cz
CC: torva...@linux-foundation.org
---
arch/um/sys
-by: Richard Weinberger rich...@nod.at
---
fs/exec.c |5 -
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index 97e0d52..7271b22 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1411,7 +1411,10 @@ int search_binary_handler(struct linux_binprm
*bprm,struct
Am Sonntag 12 Juni 2011, 13:14:41 schrieb Florian Fainelli:
From: Nicolas Thill n...@openwrt.org
Ubuntu 8.10 and newer enable compile-time buffer checks by default,
which can sometime cause build failures like this:
LD vmlinux
SYSMAP System.map
SYSMAP .tmp_System.map
LINK
Am Sonntag 12 Juni 2011, 13:14:39 schrieb Florian Fainelli:
From: Nicolas Thill n...@openwrt.org
Building UML with gcc 4.3 with -funit-at-a-time for i386 causes startup
crashes, disabling funit-at-a-time works around it.
Can you show me such a crash?
How can I reproduce the issue?
UML
Am Sonntag 12 Juni 2011, 23:52:35 schrieb Florian Fainelli:
Le dimanche 12 juin 2011 13:56:14, Richard Weinberger a écrit :
Am Sonntag 12 Juni 2011, 13:14:41 schrieb Florian Fainelli:
From: Nicolas Thill n...@openwrt.org
Ubuntu 8.10 and newer enable compile-time buffer checks
Am Freitag 10 Juni 2011, 15:10:57 schrieb Mathias Krause:
The address limit is already set in flush_old_exec() so this
set_fs(USER_DS) is redundant.
Signed-off-by: Mathias Krause mini...@googlemail.com
Cc: Richard Weinberger rich...@nod.at
Applied.
Thanks,
//richard
Both sys-i386 and sys-x86_64 support now ndelay().
The delay functions are based on arch/x86/lib/delay.c.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/delay.h |8 +
arch/um/sys-i386/delay.c| 63 ---
arch/um/sys
To make SLUB work on UML we need this_cpu_cmpxchg from
asm-generic/percpu.h.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/percpu.h |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
create mode 100644 arch/um/include/asm/percpu.h
diff --git a/arch/um
[for x86 portion]
The UML part is now fine for me. :-)
Acked-by: Richard Weinberger rich...@nod.at
Thanks,
//richard
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Am Donnerstag 02 Juni 2011, 23:04:58 schrieb Eric Paris:
b/arch/um/sys-i386/shared/sysdep/ptrace.h index d50e62e..ef5c310 100644
--- a/arch/um/sys-i386/shared/sysdep/ptrace.h
+++ b/arch/um/sys-i386/shared/sysdep/ptrace.h
@@ -162,6 +162,7 @@ struct syscall_args {
#define UPT_ORIG_SYSCALL(r)
Am Freitag 03 Juni 2011, 01:00:51 schrieb Tony Luck:
But there seems to be another problem.
Why is pt_regs of type void *?
gcc complains:
In file included from include/linux/fsnotify.h:15:0,
from include/linux/security.h:26,
from init/main.c:32:
To make SLUB work on UML we need this_cpu_cmpxchg from
asm-generic/percpu.h.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/percpu.h |6 ++
1 files changed, 6 insertions(+), 0 deletions(-)
create mode 100644 arch/um/include/asm/percpu.h
diff --git a/arch/um
Both sys-i386 and sys-x86_64 support now ndelay().
The delay functions are based on arch/x86/lib/delay.c.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/delay.h |8 +
arch/um/sys-i386/delay.c| 63 ---
arch/um/sys
Am Dienstag 24 Mai 2011, 21:34:33 schrieb Andrew Morton:
Please see the nice comment in printk.h
/*
* Please don't use printk_ratelimit(), because it shares ratelimiting
state * with all other unrelated printk_ratelimit() callsites. Instead
use * printk_ratelimited() or plain old
toralf.foers...@gmx.de
Tested-by: Toralf Förster toralf.foers...@gmx.de
Cc: Thomas Gleixner t...@linutronix.de
Cc: sta...@kernel.org # .39.x
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Kconfig.x86 |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/um
The UML kernel ignores SIGHUP anyway.
This handler is in vain.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/main.c |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 39613ea..fb2a97a 100644
Print a short info about fatal segfaults like other archs do.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/kernel/trap.c | 24
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 637c650
UML_LIB_PATH is hardcoded to /usr/lib/uml/,
on 64bit systems UML_LIB_PATH needs to be /usr/lib64/uml/.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/xterm.c |2 +-
arch/um/include/shared/os.h |6 ++
arch/um/os-Linux/main.c |2 +-
3 files changed, 8
Fix build failures on UML.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/asm/processor-generic.h |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/um/include/asm/processor-generic.h
b/arch/um/include/asm/processor-generic.h
index d1d1b0d
os_dump_core() emits SIGTERM to terminate all UML processes.
Kernel threads have to exit on SIGTERM instead of calling
last_ditch_exit().
Multiple calls to last_ditch_exit() can cause a crash.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/process.c |1 +
1 files
no...@cumulusnetworks.com
Signed-off-by: Richard Weinberger rich...@nod.at
---
Documentation/virtual/uml/UserModeLinux-HOWTO.txt | 10 +
arch/um/drivers/Makefile |4 +-
arch/um/drivers/mcast.h | 24 ---
arch/um/drivers/mcast_kern.c
. Therefore UML gets killed by SIGSEGV and
leaves a ugly log entry in the host's kernel ring buffer.
To get rid of this we use our own abort routine.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/util.c | 23 ++-
1 files changed, 22 insertions(+), 1
exit call in this
context (remove_umid_dir()) by hand.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/shared/os.h |1 +
arch/um/os-Linux/umid.c |2 +-
arch/um/os-Linux/util.c | 22 +++---
3 files changed, 9 insertions(+), 16 deletions(-)
diff
The UML kernel ignores SIGHUP anyway.
This handler is in vain.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/main.c |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 39613ea..fb2a97a 100644
UML_LIB_PATH is hardcoded to /usr/lib/uml/,
on 64bit systems UML_LIB_PATH needs to be /usr/lib64/uml/.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/xterm.c |2 +-
arch/um/include/shared/os.h |6 ++
arch/um/os-Linux/main.c |2 +-
3 files changed, 8
no...@cumulusnetworks.com
Signed-off-by: Richard Weinberger rich...@nod.at
---
Documentation/uml/UserModeLinux-HOWTO.txt | 10 ++
arch/um/drivers/Makefile |4 +-
arch/um/drivers/mcast.h | 24
arch/um/drivers/mcast_kern.c | 120
Print a short info about fatal segfaults like other archs do.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/kernel/trap.c | 24
1 files changed, 24 insertions(+), 0 deletions(-)
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 637c650
User Mode Linux can also benefit from earlyprintk.
UML's earlyprintk writes kernel messages directly to stdout.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/Kconfig.debug | 10 ++
arch/um/include/shared/os.h |1 +
arch/um/kernel/Makefile |1
exit call in this
context (remove_umid_dir()) by hand.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/include/shared/os.h |1 +
arch/um/os-Linux/umid.c |2 +-
arch/um/os-Linux/util.c | 22 +++---
3 files changed, 9 insertions(+), 16 deletions(-)
diff
The UML kernel ignores SIGHUP anyway.
This handler is in vain.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/os-Linux/main.c |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff --git a/arch/um/os-Linux/main.c b/arch/um/os-Linux/main.c
index 39613ea..fb2a97a 100644
UML_LIB_PATH is hardcoded to /usr/lib/uml/,
on 64bit systems UML_LIB_PATH needs to be /usr/lib64/uml/.
Signed-off-by: Richard Weinberger rich...@nod.at
---
arch/um/drivers/xterm.c |2 +-
arch/um/include/shared/os.h |7 +++
arch/um/os-Linux/main.c |2 +-
3 files changed, 9
Am Montag 09 Mai 2011, 00:19:53 schrieb Mattia Dongili:
On Sun, May 08, 2011 at 11:59:42PM +0200, Richard Weinberger wrote:
UML_LIB_PATH is hardcoded to /usr/lib/uml/,
on 64bit systems UML_LIB_PATH needs to be /usr/lib64/uml/.
Signed-off-by: Richard Weinberger rich...@nod.at
Am Freitag 22 April 2011, 02:10:50 schrieb Kirill A. Shutemov:
Also reproducible with gcc version 4.5.2 (Ubuntu/Linaro 4.5.2-8ubuntu4).
Interesting.
Using gcc 4.5.1 it's not reproducible.
So I've to rewrite the commit message.
Thanks,
//richard
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