Re: [Announce] 2.6.29.1-rt8

Re: [Announce] 2.6.29.1-rt8

[Stephane Couture]

With  PREEMPT_RT and HIGHMEM on ppc32  (8572ds eval board), there is a
lot of coredumps (data access, 0x300)  very early in the boot
process.  There is no problem when using only one of PREEMPT_RT or
HIGHMEM.

I also tried rt1 and rt7 and it's the same behavior.

Ccing linuxppc-dev  in case someone already  tried this configuration.

backtrace and registers dump:

(no debugging symbols found)
(no debugging symbols found)
Core was generated by `sed s/\/.*//'.
Program terminated with signal 11, Segmentation fault.
[New process 2189]
#0  0x10089fa8 in ?? ()
(gdb) bt
#0  0x10089fa8 in ?? ()
#1  0x10089f90 in ?? ()
#2  0x1006975c in ?? ()
#3  0x1005ceec in ?? ()
#4  0x1005d190 in ?? ()
#5  0x1005dd64 in ?? ()
#6  0x10000560 in ?? ()
#7  0x10000590 in ?? ()
#8  0x10000888 in ?? ()
#9  0x1009894c in ?? ()
#10 0x00000000 in ?? ()
(gdb) info register
r0             0x1      1
r1             0xbfc609e0       3217426912
r2             0x0      0
r3             0xd      13
r4             0x1009a0bc       269066428
r5             0x20082044       537403460
r6             0xd      13
r7             0x1007ccd4       268946644
r8             0x2d000  184320
r9             0x0      0
r10            0x0      0
r11            0xeee1df40       4007780160
r12            0xeee1c000       4007772160
r13            0x100cf11c       269283612
r14            0xbfd9cdb0       3218722224
r15            0xbfd9cda0       3218722208
r16            0x0      0
r17            0x0      0
r18            0x100aa854       269133908
r19            0x100a3aed       269105901
r20            0x0      0
r21            0x100d61ac       269312428
r22            0xbfd9c1c8       3218719176
r23            0x10000824       268437540
r24            0x0      0
r25            0xbfc60a38       3217427000
r26            0x0      0
r27            0x0      0
r28            0x0      0
r29            0x100c69a8       269248936
r30            0x100c7110       269250832
r31            0x100c69a8       269248936
pc             0x10089fa8       0x10089fa8
msr            0x2d900  186624
cr             0x40082044       1074274372
lr             0x10089f90       0x10089f90
ctr            0xc00feff0       3222269936
xer            0x20000000       536870912
orig_r3        0x0      0
trap           0x300    768

Thanks.

Re: [Announce] 2.6.29.1-rt8

[Stephane Couture]

With  PREEMPT_RT and HIGHMEM on ppc32  (8572ds eval board), there is a
lot of coredumps (data access, 0x300)  very early in the boot
process.  There is no problem when using only one of PREEMPT_RT or
HIGHMEM.

I also tried rt1 and rt7 and it's the same behavior.

Ccing linuxppc-dev  in case someone already  tried this configuration.

backtrace and registers dump:

(no debugging symbols found)
(no debugging symbols found)
Core was generated by `sed s/\/.*//'.
Program terminated with signal 11, Segmentation fault.
[New process 2189]
#0  0x10089fa8 in ?? ()
(gdb) bt
#0  0x10089fa8 in ?? ()
#1  0x10089f90 in ?? ()
#2  0x1006975c in ?? ()
#3  0x1005ceec in ?? ()
#4  0x1005d190 in ?? ()
#5  0x1005dd64 in ?? ()
#6  0x10000560 in ?? ()
#7  0x10000590 in ?? ()
#8  0x10000888 in ?? ()
#9  0x1009894c in ?? ()
#10 0x00000000 in ?? ()
(gdb) info register
r0             0x1      1
r1             0xbfc609e0       3217426912
r2             0x0      0
r3             0xd      13
r4             0x1009a0bc       269066428
r5             0x20082044       537403460
r6             0xd      13
r7             0x1007ccd4       268946644
r8             0x2d000  184320
r9             0x0      0
r10            0x0      0
r11            0xeee1df40       4007780160
r12            0xeee1c000       4007772160
r13            0x100cf11c       269283612
r14            0xbfd9cdb0       3218722224
r15            0xbfd9cda0       3218722208
r16            0x0      0
r17            0x0      0
r18            0x100aa854       269133908
r19            0x100a3aed       269105901
r20            0x0      0
r21            0x100d61ac       269312428
r22            0xbfd9c1c8       3218719176
r23            0x10000824       268437540
r24            0x0      0
r25            0xbfc60a38       3217427000
r26            0x0      0
r27            0x0      0
r28            0x0      0
r29            0x100c69a8       269248936
r30            0x100c7110       269250832
r31            0x100c69a8       269248936
pc             0x10089fa8       0x10089fa8
msr            0x2d900  186624
cr             0x40082044       1074274372
lr             0x10089f90       0x10089f90
ctr            0xc00feff0       3222269936
xer            0x20000000       536870912
orig_r3        0x0      0
trap           0x300    768

Thanks.

Re: [Announce] 2.6.29.1-rt8

[Robin Gareus]

Thomas Gleixner wrote:
> We are pleased to announce the next update to our new preempt-rt
> series.
>   
>    	- 32bit PAE SMP alternatives crash fixed (mainline fix)
>  	- hrtimer UP deadlock fix (tglx)
> 	- missing fixlets picked from -24/26 (clarkw, acme)
> 
> Download locations:
> 
>      http://rt.et.redhat.com/download/
>      http://www.kernel.org/pub/linux/kernel/projects/rt/
> 
> Information on the RT patch can be found at:
> 
>      http://rt.wiki.kernel.org/index.php/Main_Page
> 
> to build the 2.6.29.1-rt8 tree, the following patches should be
> applied:
> 
>      http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.29.1.tar.bz2
>      http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.29.1-rt8.bz2
> 
> The broken out patches are also available at the same download
> locations.
> 
> Enjoy !

I really do enjoy this new realtime kernel!
Many many thanks to you and the whole team for your great work
from the linuxaudio.org dept.
robin

[Announce] 2.6.29.1-rt8

[Thomas Gleixner]

We are pleased to announce the next update to our new preempt-rt
series.
  
   	- 32bit PAE SMP alternatives crash fixed (mainline fix)
 	- hrtimer UP deadlock fix (tglx)
	- missing fixlets picked from -24/26 (clarkw, acme)

Download locations:

     http://rt.et.redhat.com/download/
     http://www.kernel.org/pub/linux/kernel/projects/rt/

Information on the RT patch can be found at:

     http://rt.wiki.kernel.org/index.php/Main_Page

to build the 2.6.29.1-rt8 tree, the following patches should be
applied:

     http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.29.1.tar.bz2
     http://www.kernel.org/pub/linux/kernel/projects/rt/patch-2.6.29.1-rt8.bz2

The broken out patches are also available at the same download
locations.

Enjoy !

       tglx