Hi Russell, Thanks for the review, > -----Original Message----- > From: Russell King - ARM Linux [mailto:linux@xxxxxxxxxxxxxxxx] > Sent: Saturday, August 15, 2009 9:04 PM > To: Syed Mohammed, Khasim > Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx > Subject: Re: Exception while handling MEM Hole on OMAP3 / ARM Cortex A8 > > On Fri, Aug 14, 2009 at 04:43:21PM +0530, Syed Mohammed, Khasim wrote: > > Unable to handle kernel paging request at virtual address c5d00000 > > pgd = cf858000 <snip> > Can you rebuild your kernel yet again, this time with the unwinder > disabled (and therefore frame pointers enabled) please, and reproduce > yet again? Attached below, hope this is correct. ioremap_nocache(0x85800000, 16777216)=0xd1000000 mmap: vma->vm_start = 0x40149000 mmap: vma->vm_pgoff = 0x85800 mmap: vma->vm_end = 0x41149000 mmap: size = 0x1000000 Unable to handle kernel paging request at virtual address c5800000 pgd = cf874000 [c5800000] *pgd=00000000 Internal error: Oops: 805 [#1] Modules linked in: cmemk CPU: 0 Not tainted (2.6.31-rc5-omap1 #1) PC is at v7_flush_kern_dcache_page+0x14/0x2c LR is at __flush_dcache_page+0x30/0x3c pc : [<c002e388>] lr : [<c002c8b4>] psr: 00000113 sp : c1737e38 ip : c1737e48 fp : c1737e44 r10: cf874000 r9 : 00000200 r8 : 40149000 r7 : ce9b95a0 r6 : ce9b95a0 r5 : c0414000 r4 : 00005800 r3 : 00000002 r2 : 00000040 r1 : c5801000 r0 : c5800000 Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 8f874019 DAC: 00000015 Process a.out (pid: 889, stack limit = 0xc17362e8) Stack: (0xc1737e38 to 0xc1738000) 7e20: c1737e64 c1737e48 7e40: c002c7c0 c002c890 85800383 00000000 ce9b95a0 ce9b95a0 c1737ebc c1737e68 7e60: c008611c c002c740 c1737e8c c1737e78 c01a00e0 c01a0084 00000149 00000001 7e80: ce90a7e0 00000524 cf875000 c01a00d4 00000000 c031fd38 cf864040 ce9b95a0 7ea0: ce90a814 ce90a7e0 c1737fb0 40149000 c1737efc c1737ec0 c002c098 c0085bf4 7ec0: 00000000 c1737ed0 0000081f 00000800 c1737ef4 c031fd38 c031fe28 0000081f 7ee0: c1737fb0 40149000 00000000 40023000 c1737fac c1737f00 c0025210 c002bfb8 7f00: c018e4c8 00000000 00000000 cf8f1410 00000200 00000002 00000000 cf415538 7f20: cf8f1410 0000000f c1736000 00000000 c1737f6c c1737f40 c009866c c00c0d80 7f40: 00000000 00000000 00000000 00000000 00000000 cf8dd5a0 0000000f 4001c000 7f60: c1737fa4 c1737f70 c0098744 c0098528 00000000 00000000 c002c274 00000000 7f80: ffffffff 0000000f 4001c000 ffffffff 00000000 00000000 00000000 00000000 7fa0: 00000000 c1737fb0 c0025d40 c00251e4 40149000 00000000 00fffff8 40149000 7fc0: 40022e08 00000000 00000000 00000000 00000000 00000000 40023000 bee89ce4 7fe0: 4009eac0 bee89cb8 000086dc 4009eaec 20000010 ffffffff 80566021 80566421 Backtrace: [<c002c884>] (__flush_dcache_page+0x0/0x3c) from [<c002c7c0>] (update_mmu_cache+ 0x8c/0xb0) [<c002c734>] (update_mmu_cache+0x0/0xb0) from [<c008611c>] (handle_mm_fault+0x53 4/0x5ac) r7:ce9b95a0 r6:ce9b95a0 r5:00000000 r4:85800383 [<c0085be8>] (handle_mm_fault+0x0/0x5ac) from [<c002c098>] (do_page_fault+0xec/0 x234) [<c002bfac>] (do_page_fault+0x0/0x234) from [<c0025210>] (do_DataAbort+0x38/0x98 ) [<c00251d8>] (do_DataAbort+0x0/0x98) from [<c0025d40>] (ret_from_exception+0x0/0 x10) Exception stack(0xc1737fb0 to 0xc1737ff8) 7fa0: 40149000 00000000 00fffff8 40149000 7fc0: 40022e08 00000000 00000000 00000000 00000000 00000000 40023000 bee89ce4 7fe0: 4009eac0 bee89cb8 000086dc 4009eaec 20000010 ffffffff r8:00000000 r7:00000000 r6:00000000 r5:00000000 r4:ffffffff Code: e2033007 e3a02010 e1a02312 e2801a01 (ee070f3e) ---[ end trace b534dcb6339fe900 ]--- Regards, Khasim -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
