Hi All, I am using 2.6.26.3 kernel on ARM922T. Can any one help me understanding how to solve "Exception stack" occurring when interrupt is triggered from the hardware. Here is the log given below. Due to this problem interrupt is some how hangs some times and some times it comes correctly. Kindly check if my understanding is correct. ********** [<c005ad94>] (handle_IRQ_event+0x0/0x80) from [<c005c750>] (handle_level_irq+0x98/0xf0) r7:00000000 r6:c02b4828 r5:00000014 r4:c0298d3c [<c005c6b8>] (handle_level_irq+0x0/0xf0) from [<c0024044>] (asm_do_IRQ+0x44/0x5c) r5:00000014 r4:c0298d3c [<c0024000>] (asm_do_IRQ+0x0/0x5c) from [<c0024684>] (__irq_svc+0x24/0x80) Exception stack(0xc0293f54 to 0xc0293f9c) 3f40: c0020360 c02ff040 a0000013 3f60: 60000013 c002581c c0292000 c0020f2c c0295c54 2001f134 41029220 2001f100 3f80: c0293fa8 c0293fac c0293f9c c002585c c0025868 60000013 ffffffff r7:c0295c54 r6:00000001 r5:fefff000 r4:ffffffff [<c002581c>] (default_idle+0x0/0x54) from [<c00257c4>] (cpu_idle+0x3c/0x58) [<c0025788>] (cpu_idle+0x0/0x58) from [<c02079ec>] (rest_init+0x54/0x68) r5:c02aae2c r4:c02b2e20 [<c0207998>] (rest_init+0x0/0x68) from [<c0008980>] (start_kernel+0x280/0x2f0) [<c0008700>] (start_kernel+0x0/0x2f0) from [<20008034>] (0x20008034) ****** [<c005ad94>] (handle_IRQ_event+0x0/0x80) from [<c005c750>] (handle_level_irq+0x98/0xf0) r7:00000000 r6:c02b4828 r5:00000014 r4:c0298d3c [<c005c6b8>] (handle_level_irq+0x0/0xf0) from [<c0024044>] (asm_do_IRQ+0x44/0x5c) r5:00000014 r4:c0298d3c [<c0024000>] (asm_do_IRQ+0x0/0x5c) from [<c0024684>] (__irq_svc+0x24/0x80) Exception stack(0xc0dfff08 to 0xc0dfff50) ff00: 20ec8000 00000020 00000000 78000020 c0020ae0 c0020c60 ff20: c0365c60 c032a080 c0dfe000 00000000 bf0593d8 c0dfff74 00000000 c0dfff50 ff40: c020894c c002c22c 20000013 ffffffff r7:c032a080 r6:00000001 r5:fefff000 r4:ffffffff [<c0208710>] (schedule+0x0/0x2c0) from [<bf0593d8>] (sleep_thread+0x48/0x6c [zilog_bsp_usb_file_storage]) [<bf059390>] (sleep_thread+0x0/0x6c [zilog_bsp_usb_file_storage]) from [<bf05b250>] (fsg_main_thread+0xb8/0x1144 [zilog_bsp_usb_file_storage]) r5:00000001 r4:c0c84818 [<bf05b198>] (fsg_main_thread+0x0/0x1144 [zilog_bsp_usb_file_storage]) from [<c004d108>] (kthread+0x5c/0x90) [<c004d0ac>] (kthread+0x0/0x90) from [<c003c5fc>] (do_exit+0x0/0x5d4) r6:00000000 r5:00000000 r4:00000000 Regards Vivek -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
