Hi Greg, I recompiled my kernel and used "None" option instead of uClibc, uC-libc or glibc in menuconfig. (because i am also having issues in compilation when i select options other than 'None' while library selection) This time when i ran iptables -v, i got the following dump:
iptables[377] killed because of sig - 11 STACK DUMP: 0xbec1dd50: 00029b74 00000000 00009d34 00000000 00000000 400e7ff0 401f8000 0xbec1dd6c: bec1deb4 00000002 00009ddc 00029b74 00000000 00009d34 00000000 0xbec1dd88: 00000000 00000000 40025000 00000000 bec1dd68 400e7fa8 ffff3b24 0xbec1dda4: 00000000 00000000 40025000 40025878 bec1de64 400256c0 00000000 0xbec1ddc0: 00000000 00000000 00000000 00000004 00000000 00000000 00000000 0xbec1dddc: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0xbec1ddf8: 00000000 00000000 00000000 00000000 00000000 00000000 400de5cc 0xbec1de14: 4001d8d8 00000000 0177ff8e 00000000 4001dbd0 4001e3d0 00008df4 0xbec1de30: 400256c0 40025000 00000000 4001df30 0003e998 4000de14 4001dbd0 0xbec1de4c: 00000001 00000001 00000000 400256c0 bec1dec0 00000000 400de5cc Pid: 377, comm: iptables CPU: 0 Not tainted (2.6.30.4-uc0 #190) PC is at 0x401446c4 LR is at 0x9e08 pc : [<401446c4>] lr : [<00009e08>] psr: 60000010 sp : bec1dd50 ip : 401446c0 fp : 00000000 r10: 40025000 r9 : 00000000 r8 : 00000000 r7 : 00000002 r6 : bec1deb4 r5 : bec1df8d r4 : fffec998 r3 : fffec998 r2 : 00000000 r1 : fffec998 r0 : fffec998 Flags: nZCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user Control: 0005317f T_coredump+0x168/0xb14) r5:bec1de68 r4:0000000a [<c008acc8>]oredump+0x0/0xb14) from [<c004b318>] (get_signa8) [<c004b040>] (get_signal_ter+0x0/0x318al+0x0_notify_resume+0x30/0x34) [<c0028a3c>] (do_notify_resume+0x0/from [<c0025e0c>] (work_pending+0x1c/0x20) 00000000 1f:05 286 /bin/iptables 0003d000-00041000 rwx0000-4001d000 r-xp 00000000 1f:05 118 /lib/ld-2.8.so 4001d000-4001f000 rwxp 4001d000 1f:05 118 40024000-40025000 r-xp 0001c000 1f:05 118 /lib/ld-2.8.so 40025000-40026000 rwxp 0001d000 1f:05 118 /lib/ld-2.8.so 40026000-400ca000 r-xp 00000000 1f:05 126 /lib/libm-2.8.so 400ca000-400d1000 ---p 000a4000 1f:05 126 /lib/libm-2.8.so 400d1000-400d2000 r-xp 000a3000 1f:05 126 /lib/libm-2.8.so 400d2000-400d3000 rwxp 000a4000 1f:05 126 /lib/libm-2.8.so 400d3000-401ee000 r-xp 00000000 1f:05 151 /lib/libc-2.8.so 401ee000-401f6000 ---p 0011b000 1f:05 151 /lib/libc-2.8.so 401f6000-401f8000 r-xp 0011b000 1f:05 151 /lib/libc-2.8.so 401f8000-401f9000 rwxp 0011d000 1f:05 151 /lib/libc-2.8.so 401f9000-401fc000 rwxp 401f9000 1f:05 151 bec1c000-bec1e000 rw-p beffe000 1f:05 151 Segmentation fault Sorry for posting such long dumps, but i think thats how you can get whole picture of the issue. Thanks... On 12/13/12, Greg Ungerer <gregunge...@westnet.com.au> wrote: > Hi Arshan, > > On 12/13/2012 12:11 AM, Arshan Awais wrote: >> I have tried to compile the kernel by disabling the MMU, but it gives >> following errors during compilation: > > No, you don't want to do that. Having the MMU enabled is fine in > this case. > > I would guess from your original dump that the code is most > likely executing code in uClibc (I assume that is what you are > using if you are building with the uClinux-dist). > > Try this from the command line of your AT91SAM9X platform: > > cat /proc/self/maps > > I expect you will see something like: > > 00008000-00085000 r-xp 00000000 1f:02 1141 /bin/sh > 0008d000-00092000 rw-p 0007d000 1f:02 1141 /bin/sh > 00092000-0009e000 rwxp 00092000 00:00 0 [heap] > 40000000-40005000 r-xp 00000000 1f:02 1286522 /lib/ld-uClibc-0.9.29.so > 40005000-40006000 rw-p 40005000 00:00 0 > 4000c000-4000d000 r--p 00004000 1f:02 1286522 /lib/ld-uClibc-0.9.29.so > 4000d000-4000e000 rw-p 00005000 1f:02 1286522 /lib/ld-uClibc-0.9.29.so > 4000e000-4005b000 r-xp 00000000 1f:02 1287024 /lib/libuClibc-0.9.29.so > 4005b000-40062000 ---p 4005b000 00:00 0 > 40062000-40063000 r--p 0004c000 1f:02 1287024 /lib/libuClibc-0.9.29.so > 40063000-40064000 rw-p 0004d000 1f:02 1287024 /lib/libuClibc-0.9.29.so > 40064000-40067000 rw-p 40064000 00:00 0 > bedce000-bedd0000 rwxp beffe000 00:00 0 [stack] > > > Compare what you find with your dump addresses. > > Regards > Greg > > >> In file included from arch/arm/mm/proc-arm926.S:36: >> arch/arm/mm/proc-macros.S:81:2: error: #error PTE shared bit mismatch >> arch/arm/mm/proc-macros.S:84:2: error: #error PTE bufferable bit mismatch >> arch/arm/mm/proc-macros.S:87:2: error: #error PTE cacheable bit mismatch >> >> I am a bit confused about disabling the MMU because AT91SAM9X has MMU >> support...can u make me clear about that? >> >> On Wed, Dec 12, 2012 at 2:01 PM, Arshan Awais <arshanc...@gmail.com> >> wrote: >>> Thanks for reply Greg! >>> >>> No, the MMU is enabled in the kernel configuration. >>> >>> On Tue, Dec 11, 2012 at 6:51 AM, Greg Ungerer >>> <gregunge...@westnet.com.au> wrote: >>>> Hi Arshan, >>>> >>>> >>>> On 12/04/2012 03:32 PM, Arshan Awais wrote: >>>>> >>>>> hi, >>>>> i m having an issue when i run iptables on AT91SAM9X in uClinux. I get >>>>> following messages when i run iptables command: >>>>> >>>>> # iptables -v >>>>> pgd = c0474000 >>>>> [ffff198c] *pgd=203f0031, *pte=00000000, *ppte=00000000 >>>>> >>>>> Pid: 372, comm: iptables >>>>> CPU: 0 Not tainted (2.6.30.4-uc0 #195) >>>>> PC is at 0x401446c4 >>>> >>>> >>>> You need to figure out where this address is. >>>> >>>> Are you truly running with MMU disabled? >>>> You will pretty easily be able to tell from your kernel .config. >>>> >>>> Regards >>>> Greg >>>> >>>> >>>>> LR is at 0x9ad0 >>>>> pc : [<401446c4>] lr : [<00009ad0>] psr: 60000010 >>>>> sp : bef16d50 ip : 401446c0 fp : 00000000 >>>>> r10: 40025000 r9 : 00000000 r8 : 00000000 >>>>> r7 : 00000002 r6 : bef16eb4 r5 : bef16f8f r4 : ffff198c >>>>> r3 : ffff198c r2 : 00000000 r1 : ffff198c r0 : ffff198c >>>>> Flags: nZCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user >>>>> Control: 0005317f Table: 20474000 DAC: 00000015 >>>>> [<c00282c4>] (show_regs+0x0/0x50) from [<c002cd64>] >>>>> (__do_user_fault+0x5c/0xa4) >>>>> r5:ffff198c r4:c1c5b9c0 >>>>> [<c002cd08>] (__do_user_fault+0x0/0xa4) from [<c002d020>] >>>>> (do_page_fault+0x1f8/0x230) >>>>> r7:c182a214 r6:c1c5b9c0 r5:000000o_Dat0026d40>] >>>>> (ret_from_exception+0x0/0x10) >>>>> Exception sto 0xc12f5ff8) >>>>> 5fa0: ffff198c ffff198c 00000000 ffff198c >>>>> 5fc0: ffff198c bef16f8f bef16eb4 00000002 00000000 00000000 40025000 >>>>> 00000000 >>>>> 5fe0: 401446c0 bef16d50 00009ad0 401446c4 60000010 ffffffff >>>>> Segmentation fault >>>>> >>>>> Kindly help me solving the issue... >>>>> _______________________________________________ >>>>> uClinux-dev mailing list >>>>> uClinux-dev@uclinux.org >>>>> http://mailman.uclinux.org/mailman/listinfo/uclinux-dev >>>>> This message was resent by uclinux-dev@uclinux.org >>>>> To unsubscribe see: >>>>> http://mailman.uclinux.org/mailman/options/uclinux-dev >>>>> >>>> >> > > _______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
