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SubjectRe: [Announce] 2.6.29.1-rt8
From
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.



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