Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Sun, Feb 24, 2013 at 04:23:44PM -0500, Peter Hurley wrote:
> On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote:
> > On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote:
> > > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote:
> > > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote:
> > > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote:
> > > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote:
> > > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote:
> > > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA
> > > > > > > > device/console):
> > > > > > > >
> > > > > > > > [0.666410] udevd[97]: starting version 175
> > > > > > > > [0.674043] udevd[97]: udevd:[97]: segfault at
> > > > > > > > ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d
> > > > > > > >
> > > > > > > > and boots to an initramfs prompt.
> > > > > > > >
> > > > > > > > git bisect (log attached) blames:
> > > > > > > >
> > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
> > > > > > > > Merge: 3596f5b 949db15
> > > > > > > > Author: H. Peter Anvin
> > > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800
> > > > > > > >
> > > > > > > > Merge tag 'v3.8-rc5' into x86/mm
> > > > > > > >
> > > > > > > > The __pa() fixup series that follows touches KVM code that
> > > > > > > > is not
> > > > > > > > present in the existing branch based on v3.7-rc5, so merge
> > > > > > > > in the
> > > > > > > > current upstream from Linus.
> > > > > > > >
> > > > > > > > Signed-off-by: H. Peter Anvin
> > > > > > > >
> > > > > > > >
> > > > > > > > This only happens with the VGA device/console but that is the
> > > > > > > > default
> > > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much
> > > > > > > > every fb
> > > > > > > > driver.
> > > > > > > >
> > > > > > >
> > > > > > > I am guessing this is another bad use of __pa()... need to look
> > > > > > > into that.
> > > >
> > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible
> > > > there?
> > >
> > > This is in the linux-next repo (any git tag after 'next-20130204' will
> > > reproduce this). It's a pretty large merge commit.
> > >
> > > This doesn't happen on 3.8-rc7.
> > >
> > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can
> > > wait for it to show up in 3.9.
> > >
> > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next
> > and reproduce?
>
> Ok, found and fixed. This will need to go to stable for 3.8 as well.
ACK, please send an email with the patch to k...@vger.kernel.org.
> Regards,
> Peter Hurley
>
> --- >% ---
> From: Peter Hurley
> Date: Sun, 24 Feb 2013 10:55:09 -0500
> Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap
>
> The physical memory fixmapped for the pvclock clock_gettime vsyscall
> was allocated, and thus is not a kernel symbol. __pa() is the proper
> method to use in this case.
>
> Fixes the crash below when booting a next-20130204+ smp guest on a
> 3.8-rc5+ KVM host.
>
> [0.666410] udevd[97]: starting version 175
> [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020
> ip 7fff069e277f sp 7fff068c9ef8 error d
>
> Signed-off-by: Peter Hurley
> ---
> arch/x86/kernel/pvclock.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
> index 85c3959..2cb9470 100644
> --- a/arch/x86/kernel/pvclock.c
> +++ b/arch/x86/kernel/pvclock.c
> @@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct
> pvclock_vsyscall_time_info *i,
>
> for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
> __set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
> - __pa_symbol(i) + (idx*PAGE_SIZE),
> + __pa(i) + (idx*PAGE_SIZE),
>PAGE_KERNEL_VVAR);
> }
>
> --
> 1.8.1.2
>
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majord...@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Sun, Feb 24, 2013 at 04:23:44PM -0500, Peter Hurley wrote:
On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote:
On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote:
On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote:
On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote:
On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote:
On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote:
On 02/12/2013 04:26 PM, Peter Hurley wrote:
With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA
device/console):
[0.666410] udevd[97]: starting version 175
[0.674043] udevd[97]: udevd:[97]: segfault at
ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d
and boots to an initramfs prompt.
git bisect (log attached) blames:
commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
Merge: 3596f5b 949db15
Author: H. Peter Anvin h...@linux.intel.com
Date: Fri Jan 25 16:31:21 2013 -0800
Merge tag 'v3.8-rc5' into x86/mm
The __pa() fixup series that follows touches KVM code that
is not
present in the existing branch based on v3.7-rc5, so merge
in the
current upstream from Linus.
Signed-off-by: H. Peter Anvin h...@linux.intel.com
This only happens with the VGA device/console but that is the
default
configuration for Ubuntu/KVM because it blacklists pretty much
every fb
driver.
I am guessing this is another bad use of __pa()... need to look
into that.
Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible
there?
This is in the linux-next repo (any git tag after 'next-20130204' will
reproduce this). It's a pretty large merge commit.
This doesn't happen on 3.8-rc7.
I'll try to repro this on kvm.git sometime this week. Otherwise, we can
wait for it to show up in 3.9.
Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next
and reproduce?
Ok, found and fixed. This will need to go to stable for 3.8 as well.
ACK, please send an email with the patch to k...@vger.kernel.org.
Regards,
Peter Hurley
--- % ---
From: Peter Hurley pe...@hurleysoftware.com
Date: Sun, 24 Feb 2013 10:55:09 -0500
Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap
The physical memory fixmapped for the pvclock clock_gettime vsyscall
was allocated, and thus is not a kernel symbol. __pa() is the proper
method to use in this case.
Fixes the crash below when booting a next-20130204+ smp guest on a
3.8-rc5+ KVM host.
[0.666410] udevd[97]: starting version 175
[0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020
ip 7fff069e277f sp 7fff068c9ef8 error d
Signed-off-by: Peter Hurley pe...@hurleysoftware.com
---
arch/x86/kernel/pvclock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 85c3959..2cb9470 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct
pvclock_vsyscall_time_info *i,
for (idx = 0; idx = (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
__set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
- __pa_symbol(i) + (idx*PAGE_SIZE),
+ __pa(i) + (idx*PAGE_SIZE),
PAGE_KERNEL_VVAR);
}
--
1.8.1.2
--
To unsubscribe from this list: send the line unsubscribe kvm in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote:
> On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote:
> > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote:
> > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote:
> > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote:
> > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote:
> > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote:
> > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA
> > > > > > > device/console):
> > > > > > >
> > > > > > > [0.666410] udevd[97]: starting version 175
> > > > > > > [0.674043] udevd[97]: udevd:[97]: segfault at
> > > > > > > ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d
> > > > > > >
> > > > > > > and boots to an initramfs prompt.
> > > > > > >
> > > > > > > git bisect (log attached) blames:
> > > > > > >
> > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
> > > > > > > Merge: 3596f5b 949db15
> > > > > > > Author: H. Peter Anvin
> > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800
> > > > > > >
> > > > > > > Merge tag 'v3.8-rc5' into x86/mm
> > > > > > >
> > > > > > > The __pa() fixup series that follows touches KVM code that is
> > > > > > > not
> > > > > > > present in the existing branch based on v3.7-rc5, so merge in
> > > > > > > the
> > > > > > > current upstream from Linus.
> > > > > > >
> > > > > > > Signed-off-by: H. Peter Anvin
> > > > > > >
> > > > > > >
> > > > > > > This only happens with the VGA device/console but that is the
> > > > > > > default
> > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much
> > > > > > > every fb
> > > > > > > driver.
> > > > > > >
> > > > > >
> > > > > > I am guessing this is another bad use of __pa()... need to look
> > > > > > into that.
> > >
> > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible
> > > there?
> >
> > This is in the linux-next repo (any git tag after 'next-20130204' will
> > reproduce this). It's a pretty large merge commit.
> >
> > This doesn't happen on 3.8-rc7.
> >
> > I'll try to repro this on kvm.git sometime this week. Otherwise, we can
> > wait for it to show up in 3.9.
> >
> Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next
> and reproduce?
Ok, found and fixed. This will need to go to stable for 3.8 as well.
Regards,
Peter Hurley
--- >% ---
From: Peter Hurley
Date: Sun, 24 Feb 2013 10:55:09 -0500
Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap
The physical memory fixmapped for the pvclock clock_gettime vsyscall
was allocated, and thus is not a kernel symbol. __pa() is the proper
method to use in this case.
Fixes the crash below when booting a next-20130204+ smp guest on a
3.8-rc5+ KVM host.
[0.666410] udevd[97]: starting version 175
[0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020
ip 7fff069e277f sp 7fff068c9ef8 error d
Signed-off-by: Peter Hurley
---
arch/x86/kernel/pvclock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 85c3959..2cb9470 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct
pvclock_vsyscall_time_info *i,
for (idx = 0; idx <= (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
__set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
-__pa_symbol(i) + (idx*PAGE_SIZE),
+__pa(i) + (idx*PAGE_SIZE),
PAGE_KERNEL_VVAR);
}
--
1.8.1.2
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote:
On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote:
On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote:
On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote:
On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote:
On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote:
On 02/12/2013 04:26 PM, Peter Hurley wrote:
With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA
device/console):
[0.666410] udevd[97]: starting version 175
[0.674043] udevd[97]: udevd:[97]: segfault at
ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d
and boots to an initramfs prompt.
git bisect (log attached) blames:
commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f
Merge: 3596f5b 949db15
Author: H. Peter Anvin h...@linux.intel.com
Date: Fri Jan 25 16:31:21 2013 -0800
Merge tag 'v3.8-rc5' into x86/mm
The __pa() fixup series that follows touches KVM code that is
not
present in the existing branch based on v3.7-rc5, so merge in
the
current upstream from Linus.
Signed-off-by: H. Peter Anvin h...@linux.intel.com
This only happens with the VGA device/console but that is the
default
configuration for Ubuntu/KVM because it blacklists pretty much
every fb
driver.
I am guessing this is another bad use of __pa()... need to look
into that.
Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible
there?
This is in the linux-next repo (any git tag after 'next-20130204' will
reproduce this). It's a pretty large merge commit.
This doesn't happen on 3.8-rc7.
I'll try to repro this on kvm.git sometime this week. Otherwise, we can
wait for it to show up in 3.9.
Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next
and reproduce?
Ok, found and fixed. This will need to go to stable for 3.8 as well.
Regards,
Peter Hurley
--- % ---
From: Peter Hurley pe...@hurleysoftware.com
Date: Sun, 24 Feb 2013 10:55:09 -0500
Subject: [PATCH] x86/kvm: Fix pvclock vsyscall fixmap
The physical memory fixmapped for the pvclock clock_gettime vsyscall
was allocated, and thus is not a kernel symbol. __pa() is the proper
method to use in this case.
Fixes the crash below when booting a next-20130204+ smp guest on a
3.8-rc5+ KVM host.
[0.666410] udevd[97]: starting version 175
[0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020
ip 7fff069e277f sp 7fff068c9ef8 error d
Signed-off-by: Peter Hurley pe...@hurleysoftware.com
---
arch/x86/kernel/pvclock.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 85c3959..2cb9470 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -185,7 +185,7 @@ int __init pvclock_init_vsyscall(struct
pvclock_vsyscall_time_info *i,
for (idx = 0; idx = (PVCLOCK_FIXMAP_END-PVCLOCK_FIXMAP_BEGIN); idx++) {
__set_fixmap(PVCLOCK_FIXMAP_BEGIN + idx,
-__pa_symbol(i) + (idx*PAGE_SIZE),
+__pa(i) + (idx*PAGE_SIZE),
PAGE_KERNEL_VVAR);
}
--
1.8.1.2
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote: > On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > > device/console): > > > > > > > > > > > > > > [0.666410] udevd[97]: starting version 175 > > > > > > > [0.674043] udevd[97]: udevd:[97]: segfault at > > > > > > > ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d > > > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > > Merge: 3596f5b 949db15 > > > > > > > Author: H. Peter Anvin > > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is > > > > > > > not > > > > > > > present in the existing branch based on v3.7-rc5, so merge in > > > > > > > the > > > > > > > current upstream from Linus. > > > > > > > > > > > > > > Signed-off-by: H. Peter Anvin > > > > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the > > > > > > > default > > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much > > > > > > > every fb > > > > > > > driver. > > > > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look > > > > > > into that. > > > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > > there? > > > > This is in the linux-next repo (any git tag after 'next-20130204' will > > reproduce this). It's a pretty large merge commit. > > > > This doesn't happen on 3.8-rc7. > > > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > > wait for it to show up in 3.9. > > > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next > and reproduce? Still reproduced on next-20130204 after reverting 5dfd486c. Haven't tested kvm.git and newest next. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, 2013-02-19 at 10:26 +0200, Gleb Natapov wrote: On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? Still reproduced on next-20130204 after reverting 5dfd486c. Haven't tested kvm.git and newest next. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: > On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > > device/console): > > > > > > > > > > > > [0.666410] udevd[97]: starting version 175 > > > > > > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 > > > > > > ip 7fff069e277f sp 7fff068c9ef8 error d > > > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > > Merge: 3596f5b 949db15 > > > > > > Author: H. Peter Anvin > > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is > > > > > > not > > > > > > present in the existing branch based on v3.7-rc5, so merge in > > > > > > the > > > > > > current upstream from Linus. > > > > > > > > > > > > Signed-off-by: H. Peter Anvin > > > > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the > > > > > > default > > > > > > configuration for Ubuntu/KVM because it blacklists pretty much > > > > > > every fb > > > > > > driver. > > > > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into > > > > > that. > > > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > > there? > > This is in the linux-next repo (any git tag after 'next-20130204' will > reproduce this). It's a pretty large merge commit. > > This doesn't happen on 3.8-rc7. > > I'll try to repro this on kvm.git sometime this week. Otherwise, we can > wait for it to show up in 3.9. > Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Mon, Feb 18, 2013 at 08:12:21PM -0500, Peter Hurley wrote: On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Can you also drop 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d from linux-next and reproduce? -- Gleb. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: > On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > > device/console): > > > > > > > > > > [0.666410] udevd[97]: starting version 175 > > > > > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip > > > > > 7fff069e277f sp 7fff068c9ef8 error d > > > > > > > > > > and boots to an initramfs prompt. > > > > > > > > > > git bisect (log attached) blames: > > > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > > Merge: 3596f5b 949db15 > > > > > Author: H. Peter Anvin > > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > > current upstream from Linus. > > > > > > > > > > Signed-off-by: H. Peter Anvin > > > > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > > configuration for Ubuntu/KVM because it blacklists pretty much every > > > > > fb > > > > > driver. > > > > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into > > > > that. > > Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible > there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Regards, Peter Hurley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: > On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > > device/console): > > > > > > > > [0.666410] udevd[97]: starting version 175 > > > > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip > > > > 7fff069e277f sp 7fff068c9ef8 error d > > > > > > > > and boots to an initramfs prompt. > > > > > > > > git bisect (log attached) blames: > > > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > > Merge: 3596f5b 949db15 > > > > Author: H. Peter Anvin > > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > > present in the existing branch based on v3.7-rc5, so merge in the > > > > current upstream from Linus. > > > > > > > > Signed-off-by: H. Peter Anvin > > > > > > > > > > > > This only happens with the VGA device/console but that is the default > > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > > driver. > > > > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? > > He is using 64bit guest and on those __pa() happens to be working. Is it > > possible that slow_virt_to_phys() does not work as expected? Peter (the > > bug reporter :)) can you run your guest kernel with loglevel=7 and > > attach send me console output? > > Attached. > > BTW, this message happens on 'good' boots too: > > [0.00] [ cut here ] > [0.00] WARNING: at > /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 > pvclock_init_vsyscall+0x22/0x60() > [0.00] Hardware name: Bochs > [0.00] Modules linked in: > [0.00] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon > #20130204 > [0.00] Call Trace: > [0.00] [] warn_slowpath_common+0x7f/0xc0 > [0.00] [] warn_slowpath_null+0x1a/0x20 > [0.00] [] pvclock_init_vsyscall+0x22/0x60 > [0.00] [] kvm_setup_vsyscall_timeinfo+0x74/0xd8 > [0.00] [] kvm_guest_init+0xd0/0xe9 > [0.00] [] setup_arch+0xbee/0xcaf > [0.00] [] ? printk+0x61/0x63 > [0.00] [] start_kernel+0xd3/0x3f0 > [0.00] [] x86_64_start_reservations+0x2a/0x2c > [0.00] [] x86_64_start_kernel+0xf1/0x100 > [0.00] ---[ end trace b47bb564b2d6ec76 ]--- > > Regards, > Peter Hurley Sending a patch for this, thanks for the report. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? He is using 64bit guest and on those __pa() happens to be working. Is it possible that slow_virt_to_phys() does not work as expected? Peter (the bug reporter :)) can you run your guest kernel with loglevel=7 and attach send me console output? Attached. BTW, this message happens on 'good' boots too: [0.00] [ cut here ] [0.00] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() [0.00] Hardware name: Bochs [0.00] Modules linked in: [0.00] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 [0.00] Call Trace: [0.00] [8105812f] warn_slowpath_common+0x7f/0xc0 [0.00] [8105818a] warn_slowpath_null+0x1a/0x20 [0.00] [81d20521] pvclock_init_vsyscall+0x22/0x60 [0.00] [81d20480] kvm_setup_vsyscall_timeinfo+0x74/0xd8 [0.00] [81d201d1] kvm_guest_init+0xd0/0xe9 [0.00] [81d13f7c] setup_arch+0xbee/0xcaf [0.00] [816cbceb] ? printk+0x61/0x63 [0.00] [81d0cbc3] start_kernel+0xd3/0x3f0 [0.00] [81d0c5e4] x86_64_start_reservations+0x2a/0x2c [0.00] [81d0c6d7] x86_64_start_kernel+0xf1/0x100 [0.00] ---[ end trace b47bb564b2d6ec76 ]--- Regards, Peter Hurley Sending a patch for this, thanks for the report. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Mon, 2013-02-18 at 19:59 -0300, Marcelo Tosatti wrote: On Wed, Feb 13, 2013 at 06:57:09AM -0500, Peter Hurley wrote: On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. Can't find this commit on kvm.git or linux-2.6.git. Is it reproducible there? This is in the linux-next repo (any git tag after 'next-20130204' will reproduce this). It's a pretty large merge commit. This doesn't happen on 3.8-rc7. I'll try to repro this on kvm.git sometime this week. Otherwise, we can wait for it to show up in 3.9. Regards, Peter Hurley -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: > On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > > device/console): > > > > > > [0.666410] udevd[97]: starting version 175 > > > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip > > > 7fff069e277f sp 7fff068c9ef8 error d > > > > > > and boots to an initramfs prompt. > > > > > > git bisect (log attached) blames: > > > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > > Merge: 3596f5b 949db15 > > > Author: H. Peter Anvin > > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > > > The __pa() fixup series that follows touches KVM code that is not > > > present in the existing branch based on v3.7-rc5, so merge in the > > > current upstream from Linus. > > > > > > Signed-off-by: H. Peter Anvin > > > > > > > > > This only happens with the VGA device/console but that is the default > > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > > driver. > > > > > > > I am guessing this is another bad use of __pa()... need to look into that. > > > He is using 64bit guest and on those __pa() happens to be working. Is it > possible that slow_virt_to_phys() does not work as expected? Peter (the > bug reporter :)) can you run your guest kernel with loglevel=7 and > attach send me console output? Attached. BTW, this message happens on 'good' boots too: [0.00] [ cut here ] [0.00] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() [0.00] Hardware name: Bochs [0.00] Modules linked in: [0.00] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 [0.00] Call Trace: [0.00] [] warn_slowpath_common+0x7f/0xc0 [0.00] [] warn_slowpath_null+0x1a/0x20 [0.00] [] pvclock_init_vsyscall+0x22/0x60 [0.00] [] kvm_setup_vsyscall_timeinfo+0x74/0xd8 [0.00] [] kvm_guest_init+0xd0/0xe9 [0.00] [] setup_arch+0xbee/0xcaf [0.00] [] ? printk+0x61/0x63 [0.00] [] start_kernel+0xd3/0x3f0 [0.00] [] x86_64_start_reservations+0x2a/0x2c [0.00] [] x86_64_start_kernel+0xf1/0x100 [0.00] ---[ end trace b47bb564b2d6ec76 ]--- Regards, Peter Hurley [0.00] Initializing cgroup subsys cpuset [0.00] Initializing cgroup subsys cpu [0.00] Linux version 3.8.0-next-20130204-xeon (root@thor) (gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) ) #20130204 SMP PREEMPT Mon Feb 11 06:49:31 EST 2013 [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-next-20130204-xeon root=UUID=cc4fa0a9-18f9-4d5a-b4ec-0243574558a2 ro text loglevel=7 [0.00] KERNEL supported cpus: [0.00] Intel GenuineIntel [0.00] e820: BIOS-provided physical RAM map: [0.00] BIOS-e820: [mem 0x-0x0009dbff] usable [0.00] BIOS-e820: [mem 0x0009dc00-0x0009] reserved [0.00] BIOS-e820: [mem 0x000f-0x000f] reserved [0.00] BIOS-e820: [mem 0x0010-0x7fffdfff] usable [0.00] BIOS-e820: [mem 0x7fffe000-0x7fff] reserved [0.00] BIOS-e820: [mem 0xfeffc000-0xfeff] reserved [0.00] BIOS-e820: [mem 0xfffc-0x] reserved [0.00] NX (Execute Disable) protection: active [0.00] SMBIOS 2.4 present. [0.00] DMI: Bochs Bochs, BIOS Bochs 01/01/2007 [0.00] Hypervisor detected: KVM [0.00] e820: update [mem 0x-0x] usable ==> reserved [0.00] e820: remove [mem 0x000a-0x000f] usable [0.00] e820: last_pfn = 0x7fffe max_arch_pfn = 0x4 [0.00] MTRR default type: write-back [0.00] MTRR fixed ranges enabled: [0.00] 0-9 write-back [0.00] A-B uncachable [0.00] C-F write-protect [0.00] MTRR variable ranges enabled: [0.00] 0 base 00E000 mask FFE000 uncachable [0.00] 1 disabled [0.00] 2 disabled [0.00] 3 disabled [0.00] 4 disabled [0.00] 5 disabled [0.00] 6 disabled [0.00] 7 disabled [0.00] PAT not supported by CPU. [0.00] found SMP MP-table at [mem 0x000fdaa0-0x000fdaaf] mapped at [880fdaa0] [0.00] Base memory trampoline at [88097000] 97000 size 24576 [0.00] init_memory_mapping: [mem 0x-0x000f] [0.00] [mem 0x-0x000f] page 4k [0.00] BRK [0x01f69000, 0x01f69fff] PGTABLE [0.00] BRK [0x01f6a000, 0x01f6afff] PGTABLE [0.00] BRK [0x01f6b000, 0x01f6bfff] PGTABLE [0.00]
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: > On 02/12/2013 04:26 PM, Peter Hurley wrote: > > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > > device/console): > > > > [0.666410] udevd[97]: starting version 175 > > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip > > 7fff069e277f sp 7fff068c9ef8 error d > > > > and boots to an initramfs prompt. > > > > git bisect (log attached) blames: > > > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > > Merge: 3596f5b 949db15 > > Author: H. Peter Anvin > > Date: Fri Jan 25 16:31:21 2013 -0800 > > > > Merge tag 'v3.8-rc5' into x86/mm > > > > The __pa() fixup series that follows touches KVM code that is not > > present in the existing branch based on v3.7-rc5, so merge in the > > current upstream from Linus. > > > > Signed-off-by: H. Peter Anvin > > > > > > This only happens with the VGA device/console but that is the default > > configuration for Ubuntu/KVM because it blacklists pretty much every fb > > driver. > > > > I am guessing this is another bad use of __pa()... need to look into that. > He is using 64bit guest and on those __pa() happens to be working. Is it possible that slow_virt_to_phys() does not work as expected? Peter (the bug reporter :)) can you run your guest kernel with loglevel=7 and attach send me console output? -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. He is using 64bit guest and on those __pa() happens to be working. Is it possible that slow_virt_to_phys() does not work as expected? Peter (the bug reporter :)) can you run your guest kernel with loglevel=7 and attach send me console output? -- Gleb. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On Wed, 2013-02-13 at 12:51 +0200, Gleb Natapov wrote: On Tue, Feb 12, 2013 at 04:39:03PM -0800, H. Peter Anvin wrote: On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. He is using 64bit guest and on those __pa() happens to be working. Is it possible that slow_virt_to_phys() does not work as expected? Peter (the bug reporter :)) can you run your guest kernel with loglevel=7 and attach send me console output? Attached. BTW, this message happens on 'good' boots too: [0.00] [ cut here ] [0.00] WARNING: at /home/peter/src/kernels/next/arch/x86/kernel/pvclock.c:182 pvclock_init_vsyscall+0x22/0x60() [0.00] Hardware name: Bochs [0.00] Modules linked in: [0.00] Pid: 0, comm: swapper Not tainted 3.8.0-next-20130204-xeon #20130204 [0.00] Call Trace: [0.00] [8105812f] warn_slowpath_common+0x7f/0xc0 [0.00] [8105818a] warn_slowpath_null+0x1a/0x20 [0.00] [81d20521] pvclock_init_vsyscall+0x22/0x60 [0.00] [81d20480] kvm_setup_vsyscall_timeinfo+0x74/0xd8 [0.00] [81d201d1] kvm_guest_init+0xd0/0xe9 [0.00] [81d13f7c] setup_arch+0xbee/0xcaf [0.00] [816cbceb] ? printk+0x61/0x63 [0.00] [81d0cbc3] start_kernel+0xd3/0x3f0 [0.00] [81d0c5e4] x86_64_start_reservations+0x2a/0x2c [0.00] [81d0c6d7] x86_64_start_kernel+0xf1/0x100 [0.00] ---[ end trace b47bb564b2d6ec76 ]--- Regards, Peter Hurley [0.00] Initializing cgroup subsys cpuset [0.00] Initializing cgroup subsys cpu [0.00] Linux version 3.8.0-next-20130204-xeon (root@thor) (gcc version 4.7.2 (Ubuntu/Linaro 4.7.2-2ubuntu1) ) #20130204 SMP PREEMPT Mon Feb 11 06:49:31 EST 2013 [0.00] Command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-next-20130204-xeon root=UUID=cc4fa0a9-18f9-4d5a-b4ec-0243574558a2 ro text loglevel=7 [0.00] KERNEL supported cpus: [0.00] Intel GenuineIntel [0.00] e820: BIOS-provided physical RAM map: [0.00] BIOS-e820: [mem 0x-0x0009dbff] usable [0.00] BIOS-e820: [mem 0x0009dc00-0x0009] reserved [0.00] BIOS-e820: [mem 0x000f-0x000f] reserved [0.00] BIOS-e820: [mem 0x0010-0x7fffdfff] usable [0.00] BIOS-e820: [mem 0x7fffe000-0x7fff] reserved [0.00] BIOS-e820: [mem 0xfeffc000-0xfeff] reserved [0.00] BIOS-e820: [mem 0xfffc-0x] reserved [0.00] NX (Execute Disable) protection: active [0.00] SMBIOS 2.4 present. [0.00] DMI: Bochs Bochs, BIOS Bochs 01/01/2007 [0.00] Hypervisor detected: KVM [0.00] e820: update [mem 0x-0x] usable == reserved [0.00] e820: remove [mem 0x000a-0x000f] usable [0.00] e820: last_pfn = 0x7fffe max_arch_pfn = 0x4 [0.00] MTRR default type: write-back [0.00] MTRR fixed ranges enabled: [0.00] 0-9 write-back [0.00] A-B uncachable [0.00] C-F write-protect [0.00] MTRR variable ranges enabled: [0.00] 0 base 00E000 mask FFE000 uncachable [0.00] 1 disabled [0.00] 2 disabled [0.00] 3 disabled [0.00] 4 disabled [0.00] 5 disabled [0.00] 6 disabled [0.00] 7 disabled [0.00] PAT not supported by CPU. [0.00] found SMP MP-table at [mem 0x000fdaa0-0x000fdaaf] mapped at [880fdaa0] [0.00] Base memory trampoline at [88097000] 97000 size 24576 [0.00] init_memory_mapping: [mem 0x-0x000f] [0.00] [mem 0x-0x000f] page 4k [0.00] BRK [0x01f69000, 0x01f69fff] PGTABLE [0.00] BRK
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On 02/12/2013 04:26 PM, Peter Hurley wrote: > With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA > device/console): > > [0.666410] udevd[97]: starting version 175 > [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip > 7fff069e277f sp 7fff068c9ef8 error d > > and boots to an initramfs prompt. > > git bisect (log attached) blames: > > commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f > Merge: 3596f5b 949db15 > Author: H. Peter Anvin > Date: Fri Jan 25 16:31:21 2013 -0800 > > Merge tag 'v3.8-rc5' into x86/mm > > The __pa() fixup series that follows touches KVM code that is not > present in the existing branch based on v3.7-rc5, so merge in the > current upstream from Linus. > > Signed-off-by: H. Peter Anvin > > > This only happens with the VGA device/console but that is the default > configuration for Ubuntu/KVM because it blacklists pretty much every fb > driver. > I am guessing this is another bad use of __pa()... need to look into that. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I can confirm this _does not_ happen with same config on mainline 3.8-rc7. Just confirmed that the same fault occurs with next-20130211. Regards, Peter Hurley git bisect start # good: [6bacaa9ddacb71c691d32c678d37bc59ffc71fac] Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound git bisect good 6bacaa9ddacb71c691d32c678d37bc59ffc71fac # bad: [164708bec016c6ceb76a2bb2e29b086bf0ad4e37] Add linux-next specific files for 20130204 git bisect bad 164708bec016c6ceb76a2bb2e29b086bf0ad4e37 # good: [0231bb5336758426b44ccd798ccd3c5419c95d58] perf: Fix event group context move git bisect good 0231bb5336758426b44ccd798ccd3c5419c95d58 # good: [0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991] USB: ftdi_sio: add Zolix FTDI PID git bisect good 0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991 # good: [8b31849a113a8868eb2de692be5c9ecadae93ac9] Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending git bisect good 8b31849a113a8868eb2de692be5c9ecadae93ac9 # good: [972f7c832229781f09f03284cde484ccdb44d3ee] x86, doc: Boot protocol 2.12 is in 3.8 git bisect good 972f7c832229781f09f03284cde484ccdb44d3ee # good: [da57b936ea7b328d1009b37a0a0ad1f14148e104] xtensa: Provide dummy dma_mmap_coherent() and dma_get_sgtable() git bisect good da57b936ea7b328d1009b37a0a0ad1f14148e104 # good: [1927661b1748480692f1fa2c390fe031c86d862a] ASoC: fsl: fix snd-soc-imx-pcm module build git bisect good 1927661b1748480692f1fa2c390fe031c86d862a # good: [cff3c124a7e82ca0ea1d6864b27ef18c403c0773] sched/debug: Fix format string for 32-bit platforms git bisect good cff3c124a7e82ca0ea1d6864b27ef18c403c0773 # good: [ce4a3d52888a95473914bd54bcf6c566014fc03e] [media] radio: set vfl_dir correctly to fix modulator regression git bisect good ce4a3d52888a95473914bd54bcf6c566014fc03e # good: [d36b7b9643faca8aab8cee8d824f75c800b337ac] Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent git bisect good d36b7b9643faca8aab8cee8d824f75c800b337ac # good: [0ce82b7f7b7373b16ecf7b5725e21e2975204500] mtd: nand: onfi don't WARN if we are in 16 bits mode git bisect good 0ce82b7f7b7373b16ecf7b5725e21e2975204500 # good: [58c49df378cde4ff64172483d593a1a5689c13a8] mtip32xx: fix for crash when the device surprise removed during rebuild git bisect good 58c49df378cde4ff64172483d593a1a5689c13a8 # good: [11f6d5d6564613befc240ebf9620c80fabe74c1a] Merge remote-tracking branch 'spi-mb/spi-next' git bisect good 11f6d5d6564613befc240ebf9620c80fabe74c1a # bad: [df3de4831a52f71e3f5ce3ca67de885f9bcf6fed] Merge remote-tracking branch 'driver-core/driver-core-next' git bisect bad df3de4831a52f71e3f5ce3ca67de885f9bcf6fed # good: [ce68648792ba859fe11075f507909970ae5e1ba4] kvm tools: remove unused field from virtio-blk git bisect good ce68648792ba859fe11075f507909970ae5e1ba4 # bad: [81f3c277544d5359e4bf3fdfd2c4495a288d67ff] Merge remote-tracking branch 'fw-nohz/nohz/next' git bisect bad 81f3c277544d5359e4bf3fdfd2c4495a288d67ff # good: [0e04f53a4310c2376a40a3eaf4cd74822534b7c2] Merge branch 'x86/microcode' git bisect good 0e04f53a4310c2376a40a3eaf4cd74822534b7c2 # bad: [e761e0bbb991c0a0eaf59b5d61feebf3185f58bd] Merge remote-tracking branch 'rcu/rcu/next' git bisect bad e761e0bbb991c0a0eaf59b5d61feebf3185f58bd # good: [38dbe0b137bfe6ea92be495017885c0785179a02] tracing: Remove second iterator initializer git bisect good 38dbe0b137bfe6ea92be495017885c0785179a02 # bad: [152aa0e8ad77111b82ebe655c559b58f5dec0981] Merge remote-tracking branch 'tip/auto-latest' git bisect bad 152aa0e8ad77111b82ebe655c559b58f5dec0981 # bad: [5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d] x86, kvm: Fix kvm's use of __pa() on percpu areas git bisect bad 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d # good: [6a3956bd242926f8956992f6ed7805b0811be003] x86/lguest: Use __pa_symbol instead of __pa on C visible symbols git bisect good 6a3956bd242926f8956992f6ed7805b0811be003 # bad: [7b5c4a65cc27f017c170b025f8d6d75dabb11c6f] Merge tag 'v3.8-rc5' into x86/mm git bisect bad 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f # good: [5e4bf1a55da976a5ed60901bb8801f1024ef9774] x86/mm: Don't flush the TLB on #WP pmd fixups git bisect
[Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I can confirm this _does not_ happen with same config on mainline 3.8-rc7. Just confirmed that the same fault occurs with next-20130211. Regards, Peter Hurley git bisect start # good: [6bacaa9ddacb71c691d32c678d37bc59ffc71fac] Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound git bisect good 6bacaa9ddacb71c691d32c678d37bc59ffc71fac # bad: [164708bec016c6ceb76a2bb2e29b086bf0ad4e37] Add linux-next specific files for 20130204 git bisect bad 164708bec016c6ceb76a2bb2e29b086bf0ad4e37 # good: [0231bb5336758426b44ccd798ccd3c5419c95d58] perf: Fix event group context move git bisect good 0231bb5336758426b44ccd798ccd3c5419c95d58 # good: [0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991] USB: ftdi_sio: add Zolix FTDI PID git bisect good 0ba3b2ccc72b3df5c305d61f59d93ab0f0e87991 # good: [8b31849a113a8868eb2de692be5c9ecadae93ac9] Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending git bisect good 8b31849a113a8868eb2de692be5c9ecadae93ac9 # good: [972f7c832229781f09f03284cde484ccdb44d3ee] x86, doc: Boot protocol 2.12 is in 3.8 git bisect good 972f7c832229781f09f03284cde484ccdb44d3ee # good: [da57b936ea7b328d1009b37a0a0ad1f14148e104] xtensa: Provide dummy dma_mmap_coherent() and dma_get_sgtable() git bisect good da57b936ea7b328d1009b37a0a0ad1f14148e104 # good: [1927661b1748480692f1fa2c390fe031c86d862a] ASoC: fsl: fix snd-soc-imx-pcm module build git bisect good 1927661b1748480692f1fa2c390fe031c86d862a # good: [cff3c124a7e82ca0ea1d6864b27ef18c403c0773] sched/debug: Fix format string for 32-bit platforms git bisect good cff3c124a7e82ca0ea1d6864b27ef18c403c0773 # good: [ce4a3d52888a95473914bd54bcf6c566014fc03e] [media] radio: set vfl_dir correctly to fix modulator regression git bisect good ce4a3d52888a95473914bd54bcf6c566014fc03e # good: [d36b7b9643faca8aab8cee8d824f75c800b337ac] Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/urgent git bisect good d36b7b9643faca8aab8cee8d824f75c800b337ac # good: [0ce82b7f7b7373b16ecf7b5725e21e2975204500] mtd: nand: onfi don't WARN if we are in 16 bits mode git bisect good 0ce82b7f7b7373b16ecf7b5725e21e2975204500 # good: [58c49df378cde4ff64172483d593a1a5689c13a8] mtip32xx: fix for crash when the device surprise removed during rebuild git bisect good 58c49df378cde4ff64172483d593a1a5689c13a8 # good: [11f6d5d6564613befc240ebf9620c80fabe74c1a] Merge remote-tracking branch 'spi-mb/spi-next' git bisect good 11f6d5d6564613befc240ebf9620c80fabe74c1a # bad: [df3de4831a52f71e3f5ce3ca67de885f9bcf6fed] Merge remote-tracking branch 'driver-core/driver-core-next' git bisect bad df3de4831a52f71e3f5ce3ca67de885f9bcf6fed # good: [ce68648792ba859fe11075f507909970ae5e1ba4] kvm tools: remove unused field from virtio-blk git bisect good ce68648792ba859fe11075f507909970ae5e1ba4 # bad: [81f3c277544d5359e4bf3fdfd2c4495a288d67ff] Merge remote-tracking branch 'fw-nohz/nohz/next' git bisect bad 81f3c277544d5359e4bf3fdfd2c4495a288d67ff # good: [0e04f53a4310c2376a40a3eaf4cd74822534b7c2] Merge branch 'x86/microcode' git bisect good 0e04f53a4310c2376a40a3eaf4cd74822534b7c2 # bad: [e761e0bbb991c0a0eaf59b5d61feebf3185f58bd] Merge remote-tracking branch 'rcu/rcu/next' git bisect bad e761e0bbb991c0a0eaf59b5d61feebf3185f58bd # good: [38dbe0b137bfe6ea92be495017885c0785179a02] tracing: Remove second iterator initializer git bisect good 38dbe0b137bfe6ea92be495017885c0785179a02 # bad: [152aa0e8ad77111b82ebe655c559b58f5dec0981] Merge remote-tracking branch 'tip/auto-latest' git bisect bad 152aa0e8ad77111b82ebe655c559b58f5dec0981 # bad: [5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d] x86, kvm: Fix kvm's use of __pa() on percpu areas git bisect bad 5dfd486c4750c9278c63fa96e6e85bdd2fb58e9d # good: [6a3956bd242926f8956992f6ed7805b0811be003] x86/lguest: Use __pa_symbol instead of __pa on C visible symbols git bisect good 6a3956bd242926f8956992f6ed7805b0811be003 # bad: [7b5c4a65cc27f017c170b025f8d6d75dabb11c6f] Merge tag 'v3.8-rc5' into x86/mm git bisect bad 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f # good: [5e4bf1a55da976a5ed60901bb8801f1024ef9774] x86/mm: Don't flush
Re: [Bisected][-next-20130204+] [x86/kvm] udevd:[97]: segfault at ffffffffff5fd020 ip 00007fff069e277f sp 00007fff068c9ef8 error d
On 02/12/2013 04:26 PM, Peter Hurley wrote: With -next-20130204+ in ubuntu 12.10 VM (so the 80x25 VGA device/console): [0.666410] udevd[97]: starting version 175 [0.674043] udevd[97]: udevd:[97]: segfault at ff5fd020 ip 7fff069e277f sp 7fff068c9ef8 error d and boots to an initramfs prompt. git bisect (log attached) blames: commit 7b5c4a65cc27f017c170b025f8d6d75dabb11c6f Merge: 3596f5b 949db15 Author: H. Peter Anvin h...@linux.intel.com Date: Fri Jan 25 16:31:21 2013 -0800 Merge tag 'v3.8-rc5' into x86/mm The __pa() fixup series that follows touches KVM code that is not present in the existing branch based on v3.7-rc5, so merge in the current upstream from Linus. Signed-off-by: H. Peter Anvin h...@linux.intel.com This only happens with the VGA device/console but that is the default configuration for Ubuntu/KVM because it blacklists pretty much every fb driver. I am guessing this is another bad use of __pa()... need to look into that. -hpa -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
