Messages in this thread | | | Date | Tue, 20 Apr 2010 15:46:56 +0530 | Subject | Re: Kmemcheck issue | From | naveen yadav <> |
| |
Hi Vegard,
Thanks for your answer, but this is coming from kmemchek only
thanks naveen On Tue, Apr 20, 2010 at 1:31 PM, Vegard Nossum <vegard.nossum@gmail.com> wrote: > On 19 April 2010 15:23, naveen yadav <yad.naveen@gmail.com> wrote: >> Hi, >> >> á á á I áam átrying to á run áKmemcheck on á a áCortex ( ARM-v7) >> board árunning áLinux 2.6.30.9 >> >> At boot-up time, áas ásoon áas áTimer-device is áenabled, á I áfind >> that á timer ágets ádisabled ábecause ásystem >> gets spurious áinterrupts áon áthat áirq áline. >> >> >> PID hash table entries: 1024 (order: 10, 4096 bytes) >> Linux System timer initialize >> irq 23: nobody cared (try booting with the "irqpoll" option) >> [<c002e148>] (unwind_backtrace+0x0/0xe8) from [<c002c4b8>] >> (dump_stack+0x18/0x1c) >> [<c002c4b8>] (dump_stack+0x18/0x1c) from [<c006ad74>] >> (__report_bad_irq+0x80/0xb0) >> [<c006ad74>] (__report_bad_irq+0x80/0xb0) from [<c006af28>] >> (note_interrupt+0x184/0x1f0) >> [<c006af28>] (note_interrupt+0x184/0x1f0) from [<c006ba38>] >> (handle_edge_irq+0xe8/0x160) >> [<c006ba38>] (handle_edge_irq+0xe8/0x160) from [<c0027060>] >> (asm_do_IRQ+0x60/0x74) >> [<c0027060>] (asm_do_IRQ+0x60/0x74) from [<c0027a30>] (__irq_svc+0x30/0x80) >> Exception stack(0xc0373ec0 to 0xc0373f08) >> 3ec0: 00000017 c0372000 00000002 00000000 00000002 c038e8f4 00000000 0aa00000 >> 3ee0: c0372000 c03bfc40 0000001f c0373f44 00000100 c0373f08 c0047ffc c0047c98 >> 3f00: 20000153 ffffffff >> [<c0027a30>] (__irq_svc+0x30/0x80) from [<c0047ffc>] (irq_exit+0x44/0x4c) >> [<c0047ffc>] (irq_exit+0x44/0x4c) from [<c0047ffc>] (irq_exit+0x44/0x4c) >> [<c0047ffc>] (irq_exit+0x44/0x4c) from [<c0027064>] (asm_do_IRQ+0x64/0x74) >> [<c0027064>] (asm_do_IRQ+0x64/0x74) from [<c0027a30>] (__irq_svc+0x30/0x80) >> Exception stack(0xc0373f78 to 0xc0373fc0) >> 3f60: á á á á á á á á á á á á á á á á á á á á á á á á á á á 00000000 c037c15c >> 3f80: 00000001 600001d3 955fffff c00242ec c0399f80 0aa00000 c0023000 412fc082 >> 3fa0: 0000001f c0373ff4 c0373fc0 c0373fc0 c0008974 c0019798 20000153 ffffffff >> [<c0027a30>] (__irq_svc+0x30/0x80) from [<c0008974>] (start_kernel+0x168/0x3e4) >> [<c0008974>] (start_kernel+0x168/0x3e4) from [<60008034>] (0x60008034) >> handlers: >> [<c003a604>] (sdp_timer_interrupt+0x0/0x38) >> Disabling IRQ #23 >> Console: colour dummy device 80x30 >> console [ttyS1] enabled >> Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) >> Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) >> >> >> Later, áwhen ácalibrating delay áloop, áthe system is hung áas timer >> is not working. >> >> The problem happens áeven if áI áset kmemcheck_enabled = 0 at áboot. >> ( I also commented out á á pagetable_init(&meminfo) á). >> >> áIf áyou have seen this before, áplease let me know. >> >> ( I know that áyour patch was written for á ARM v6. á á My cpu is >> Cortex . á áI am aware that áI may have to make some change in the >> áinstruction simulation handling. ) >> >> Thanks > > Hi, > > First up, I see a lot of funny á characters in your text. > > I think that this is not about kmemcheck, but kmemleak. kmemcheck is > for catching references to uninitialized memory while kmemleak is for > detecting memory leaks. kmemcheck only works on x86 so far (with an > ARM patch by Ye Janboe, but it is not in mainline). kmemleak, however, > was written on ARM. > > I put Catalin Marinas (kmemleak author) on Cc. > > Please correct me if I am wrong. Good luck. > > > Vegard > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |