Comment on attachment 139221
Attempted gdb diagnostics

>Program terminated with signal 11, Segmentation fault.
>#0 0x00000024 in ?? ()
>(gdb) info threads
>  Id   Target Id         Frame 
>  7    Thread 0x465562a0 (LWP 1582) 0x424c8a14 in nanosleep ()
>   from /lib/libc.so.6
>  6    Thread 0x458ff2a0 (LWP 1581) 0x424f7fa8 in __GI___poll (fds=0x45a02398, 
>    nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
>  5    Thread 0x46e562a0 (LWP 1583) 0x42419ee4 in __pthread_cond_wait (
>    cond=0x46564cf8, mutex=0x0) at pthread_cond_wait.c:156
>  4    Thread 0x476562a0 (LWP 1585) 0x4241a2b0 in __pthread_cond_timedwait (
>    cond=0x465bea30, mutex=0x0, abstime=0x47655bc0)
>    at pthread_cond_timedwait.c:168
>  3    Thread 0x48edf2a0 (LWP 1627) 0x4241a2b0 in __pthread_cond_timedwait (
>    cond=0x3a7438, mutex=0x0, abstime=0x48edeb88)
>    at pthread_cond_timedwait.c:168
>  2    Thread 0x44f812a0 (LWP 1580) 0x424f7fa8 in __GI___poll (fds=0x45000c78, 
>    nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
>* 1    Thread 0x442e0000 (LWP 1579) 0x00000024 in ?? ()
>(gdb) bt
>#0  0x00000024 in ?? ()
>#1  0x49f0eaf4 in ?? ()
>#2  0x49f0eaf4 in ?? ()
>Backtrace stopped: previous frame identical to this frame (corrupt stack?)
>(gdb) info registers
>r0             0x47657920      1197832480
>r1             0x476579f0      1197832688
>r2             0x4ecb6a20      1321953824
>r3             0x47657938      1197832504
>r4             0x47657920      1197832480
>r5             0x1ef   495
>r6             0x47657588      1197831560
>r7             0x4a0516e0      1241847520
>r8             0x41d5d15c      1104531804
>r9             0x47657570      1197831536
>r10            0x465bd400      1180423168
>r11            0x41f13060      1106325600
>r12            0x41f0fd40      1106312512
>sp             0xbe883040      0xbe883040
>lr             0x49f0eaf4      1240525556
>pc             0x24    0x24
>cpsr           0x200f0010      537853968
>(gdb) x/i 0x49f0eaf4
>   0x49f0eaf4: b       0x49f0b164
>(gdb) x/100i 0x49f0b164
>   0x49f0b164: mov     r8, #0
>   0x49f0b168: str     r8, [r4]
>   0x49f0b16c: mvn     r8, #3
>   0x49f0b170: str     r8, [r4, #3118288]
>   0x49f0b174: mov     r8, #0
>   0x49f0b178: str     r8, [r4, #3118288]
>   0x49f0b17c: mvn     r8, #3
>   0x49f0b180: str     r8, [r4, #3118288]
>   0x49f0b184: mov     r8, #0
>   0x49f0b188: str     r8, [r4, #3118288]
>   0x49f0b18c: mvn     r8, #3
>   0x49f0b190: str     r8, [r4, #3118288]
>   0x49f0b194: mov     r8, #0
>   0x49f0b198: str     r8, [r4, #3118288]
>   0x49f0b19c: mvn     r8, #3
>   0x49f0b1a0: str     r8, [r4, #3118288]
>   0x49f0b1a4: mov     r8, #0
>   0x49f0b1a8: str     r8, [r4, #3118288]
>   0x49f0b1ac: mvn     r8, #3
>   0x49f0b1b0: str     r8, [r4, #3118288]      ; 0x24
>   0x49f0b1b4: mov     r8, #0
>   0x49f0b1b8: str     r8, [r4, #3118288]      ; 0x28
>   0x49f0b1bc: mvn     r8, #3
>   0x49f0b1c0: str     r8, [r4, #3118288]      ; 0x2c
>   0x49f0b1c4: mov     r8, #0
>   0x49f0b1c8: str     r8, [r4, #3118288]      ; 0x30
>   0x49f0b1cc: mvn     r8, #3
>   0x49f0b1d0: str     r8, [r4, #3118288]      ; 0x34
>   0x49f0b1d4: mov     r8, #0
>   0x49f0b1d8: str     r8, [r4, #3118288]      ; 0x38
>   0x49f0b1dc: mvn     r8, #3
>   0x49f0b1e0: str     r8, [r4, #3118288]      ; 0x3c
>   0x49f0b1e4: mov     r8, #0
>   0x49f0b1e8: str     r8, [r4, #3118288]      ; 0x40
>   0x49f0b1ec: mvn     r8, #3
>   0x49f0b1f0: str     r8, [r4, #3118288]      ; 0x44
>   0x49f0b1f4: mov     r8, #0
>   0x49f0b1f8: str     r8, [r4, #3118288]      ; 0x48
>   0x49f0b1fc: mvn     r8, #3
>   0x49f0b200: str     r8, [r4, #3118288]      ; 0x4c
>   0x49f0b204: mov     r8, #0
>   0x49f0b208: str     r8, [r4]
>   0x49f0b20c: mvn     r8, #5
>   0x49f0b210: str     r8, [r4, #3118288]
>   0x49f0b214: mov     r8, #0
>   0x49f0b218: str     r8, [r4, #3118288]
>   0x49f0b21c: mvn     r8, #5
>   0x49f0b220: str     r8, [r4, #3118288]
>   0x49f0b224: mov     r8, #0
>   0x49f0b228: str     r8, [r4, #3118288]
>   0x49f0b22c: mvn     r8, #5
>   0x49f0b230: str     r8, [r4, #3118288]
>   0x49f0b234: ldr     r8, [r4, #3118288]
>   0x49f0b238: cmn     r8, #6
>   0x49f0b23c: bne     0x49f0b26c
>   0x49f0b240: mov     r0, sp
>   0x49f0b244: str     r4, [sp, #3118288]      ; 0x60
>   0x49f0b248: mov     r8, #8
>   0x49f0b24c: str     r8, [r4, #-3118288]     ; 0x2c
>   0x49f0b250: ldr     r3, [pc, #32828736]     ; 0x49f0b940
>   0x49f0b254: str     r4, [r3]
>   0x49f0b258: ldr     r8, [pc, #32828736]     ; 0x49f0b944
>   0x49f0b25c: blx     r8
>   0x49f0b260: str     r0, [r4]
>   0x49f0b264: mvn     r8, #4
>   0x49f0b268: str     r8, [r4, #3118288]
>   0x49f0b26c: ldr     r0, [r4, #-3118288]     ; 0x40
>   0x49f0b270: ldr     r1, [r4, #-3118288]     ; 0x3c
>   0x49f0b274: cmn     r1, #5
>   0x49f0b278: bne     0x49f0d140
>   0x49f0b27c: ldr     r8, [r0, #3118288]
>   0x49f0b280: ldr     r3, [pc, #32828736]     ; 0x49f0b94c
>   0x49f0b284: cmp     r3, r8
>   0x49f0b288: ldrne   pc, [pc, #32828736]     ; 0x49f0b950
>   0x49f0b28c: ldr     r2, [r0, #3118288]
>   0x49f0b290: ldr     r3, [pc, #32828736]     ; 0x49f0b954
>   0x49f0b294: ldr     r0, [r2, r3]
>   0x49f0b298: ldr     r3, [pc, #32828736]     ; 0x49f0b958
>   0x49f0b29c: ldr     r1, [r2, r3]
>   0x49f0b2a0: str     r0, [r4, #3118288]      ; 0x50
>   0x49f0b2a4: str     r1, [r4, #3118288]      ; 0x54
>   0x49f0b2a8: nop                     ; (mov r0, r0)
>   0x49f0b2ac: mov     r1, r1
>   0x49f0b2b0: cmn     r1, #2
>   0x49f0b2b4: bcc     0x49f0d17c
>   0x49f0b2b8: bics    r3, r0, #0
>   0x49f0b2bc: beq     0x49f0b3a4
>   0x49f0b2c0: ldr     r0, [r4, #-3118288]     ; 0x40
>   0x49f0b2c4: ldr     r1, [r4, #-3118288]     ; 0x3c
>   0x49f0b2c8: cmn     r1, #5
>   0x49f0b2cc: bne     0x49f0d1e4
>   0x49f0b2d0: ldr     r8, [r0, #3118288]
>   0x49f0b2d4: ldr     r3, [pc, #32828736]     ; 0x49f0b968
>   0x49f0b2d8: cmp     r3, r8
>   0x49f0b2dc: ldrne   pc, [pc, #32828736]     ; 0x49f0b96c
>   0x49f0b2e0: ldr     r2, [r0, #3118288]
>   0x49f0b2e4: ldr     r3, [pc, #32828736]     ; 0x49f0b970
>   0x49f0b2e8: ldr     r0, [r2, r3]
>   0x49f0b2ec: ldr     r3, [pc, #32828736]     ; 0x49f0b974
>   0x49f0b2f0: ldr     r1, [r2, r3]
>

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https://bugs.launchpad.net/bugs/1066046

Title:
  pvr driver crashes when ubiquity-slideshow starts

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