On Fri, 21 Dec 2007 22:51:45 +0100 Mariusz Kozlowski <[EMAIL PROTECTED]> wrote:
> > Here's a test patch:
>
> Tested on 2.6.23 and 2.6.24-rc5-mm1. The patch fixes the bug.
>
> Thanks a lot to both of you.
Thank you for testing -mm (especially on sparc64) and for reporting
the bug and for testing
Hello,
> > > [ 145.128915] TSTATE: 004411009603 TPC: 005119ac TNPC:
> > > 005119b0 Y: Not tainted
> > > [ 145.128940] TPC:
> >
> > My suspicion at this point is that with certain RAM layouts, simply
> > iterating over PFN's is simply not working out.
>
> That
From: Matt Mackall <[EMAIL PROTECTED]>
Date: Thu, 20 Dec 2007 19:06:55 -0600
> @@ -707,7 +707,10 @@ static ssize_t kpagecount_read(struct fi
> return -EIO;
>
> while (count > 0) {
> - ppage = pfn_to_page(pfn++);
> + ppage = 0;
> + if (pfn_v
On Thu, Dec 20, 2007 at 04:17:26PM -0800, David Miller wrote:
> From: Mariusz Kozlowski <[EMAIL PROTECTED]>
> Date: Thu, 20 Dec 2007 20:47:55 +0100
>
> > [ 145.128915] TSTATE: 004411009603 TPC: 005119ac TNPC:
> > 005119b0 Y: Not tainted
> > [ 145.128940] TPC:
>
From: Mariusz Kozlowski <[EMAIL PROTECTED]>
Date: Thu, 20 Dec 2007 20:47:55 +0100
> [ 145.128915] TSTATE: 004411009603 TPC: 005119ac TNPC:
> 005119b0 Y: Not tainted
> [ 145.128940] TPC:
My suspicion at this point is that with certain RAM layouts, simply
iterati
Hello,
> > > Actually, you may only need these two:
> > >
> > > > maps4-add-proc-kpagecount-interface.patch
> > > > maps4-add-proc-kpageflags-interface.patch
> >
> > Yes these two were enough, and exporting fs/proc/base.c's
> > mem_lseek().
> >
> > As hard as I try, I can't reproduce this at a
On Thu, Dec 20, 2007 at 04:53:59AM -0800, David Miller wrote:
> From: Matt Mackall <[EMAIL PROTECTED]>
> Date: Mon, 17 Dec 2007 08:55:54 -0600
>
> > On Sun, Dec 16, 2007 at 10:39:17PM -0800, Andrew Morton wrote:
> > Actually, you may only need these two:
> >
> > > maps4-add-proc-kpagecount-interf
From: Matt Mackall <[EMAIL PROTECTED]>
Date: Mon, 17 Dec 2007 08:55:54 -0600
> On Sun, Dec 16, 2007 at 10:39:17PM -0800, Andrew Morton wrote:
> Actually, you may only need these two:
>
> > maps4-add-proc-kpagecount-interface.patch
> > maps4-add-proc-kpageflags-interface.patch
Yes these two were
Hello,
> > cat /proc/kpagecount on the other hand - with the change in line 710
> > - locks the box. Sysrq works, changing consoles works, but there is
> > no "BUG: soft lockup ..." message. After a while the box becomes
> > totaly unresponsive - even caps lock doesn't work, no responses to
> > pi
On Sun, Dec 16, 2007 at 10:39:17PM -0800, Andrew Morton wrote:
> On Sun, 16 Dec 2007 20:26:11 -0800 (PST) David Miller <[EMAIL PROTECTED]>
> wrote:
>
> > From: Matt Mackall <[EMAIL PROTECTED]>
> > Date: Sun, 16 Dec 2007 20:11:49 -0600
> >
> > > But as the function doesn't actually show up in you
On Sun, 16 Dec 2007 20:26:11 -0800 (PST) David Miller <[EMAIL PROTECTED]> wrote:
> From: Matt Mackall <[EMAIL PROTECTED]>
> Date: Sun, 16 Dec 2007 20:11:49 -0600
>
> > But as the function doesn't actually show up in your stack trace,
> > something else is probably wrong. So I'd also try commentin
From: Matt Mackall <[EMAIL PROTECTED]>
Date: Sun, 16 Dec 2007 20:11:49 -0600
> But as the function doesn't actually show up in your stack trace,
> something else is probably wrong. So I'd also try commenting out
> pieces of that function until it started working.
Some piece of state is being indi
On Sun, Dec 16, 2007 at 08:10:10PM +0100, Mariusz Kozlowski wrote:
> > > Can you change line 710 of fs/proc/proc_misc.c to:
> > >
> > > ppage = NULL;
> >
> > Sure.
> >
> > > ..and see if it still breaks?
> >
> > Yes it does - the same way as eariler. Box is locked, processes stuck in D
> > s
Witam,
> > > > cat /proc/kpageflags on sparc64 causes the box to lock.
> > > > I can not write on any terminal - but I can issue sysrqs and switch
> > > > between consoles.
> > > >
> > > > cat process hangs in read(3, ...
> > >
> > > cat /proc/kpagecount produces similar symptoms. box i
> > > cat /proc/kpageflags on sparc64 causes the box to lock.
> > > I can not write on any terminal - but I can issue sysrqs and switch
> > > between consoles.
> > >
> > > cat process hangs in read(3, ...
> >
> > cat /proc/kpagecount produces similar symptoms. box is locked - sysrq-w
> >
On Sun, Dec 16, 2007 at 12:40:53PM +0100, Mariusz Kozlowski wrote:
> > cat /proc/kpageflags on sparc64 causes the box to lock.
> > I can not write on any terminal - but I can issue sysrqs and switch
> > between consoles.
> >
> > cat process hangs in read(3, ...
>
> cat /proc/kpagecount pr
> cat /proc/kpageflags on sparc64 causes the box to lock.
> I can not write on any terminal - but I can issue sysrqs and switch
> between consoles.
>
> cat process hangs in read(3, ...
cat /proc/kpagecount produces similar symptoms. box is locked - sysrq-w sshd
trace:
__down
__down_inte
Hello
> Will reply soon with correct data.
Ok here it goes:
cat /proc/kpageflags on sparc64 causes the box to lock.
I can not write on any terminal - but I can issue sysrqs and switch
between consoles.
cat process hangs in read(3, ...
sysrq-w shows:
syslogd D 0069240c
> cat /proc/kpageflags on sparc64 causes the box to lock.
> I can not write on any terminal - but I can issue sysrqs and switch
> between consoles.
>
> cat process hangs in read(3, ...
>
> sysrq-w shows:
>
> syslogd D 0069240c 0 2470 1
> Call Trace:
> [0069
Hello,
cat /proc/kpageflags on sparc64 causes the box to lock.
I can not write on any terminal - but I can issue sysrqs and switch
between consoles.
cat process hangs in read(3, ...
sysrq-w shows:
syslogd D 0069240c 0 2470 1
Call Trace:
[00692224]
[000
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