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Message-ID: <dd18b0c30809031111v3669fe38q1333975cacde8054@mail.gmail.com> Date: Wed, 3 Sep 2008 11:11:13 -0700 From: "Justin Mattock" <justinmattock@...il.com> To: "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org> Subject: [ 0.618502] WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0x9a/0xb4() I've a macbook and a dell inspiron,(don't see any serial plugins); but wanted to see if there is any way to use this debugger i.g. usb, or anything, if not oh well. when configuring kgdb I just said "y" to all of the options. When booting, using kgdboc=off (not sure if this is correct or not); lets me boot into the system, or else freeze. under dmesg I see this: [ 0.618288] ------------[ cut here ]------------ [ 0.618502] WARNING: at drivers/misc/kgdbts.c:302 check_and_rewind_pc+0x9a/0xb4() [ 0.618845] Modules linked in: [ 0.619000] Pid: 1, comm: swapper Not tainted 2.6.27-rc5-00006-gbef69ea #15 [ 0.619321] [<c0123dd6>] warn_on_slowpath+0x41/0x65 [ 0.619568] [<c0124313>] ? release_console_sem+0x185/0x18d [ 0.619849] [<c0111f94>] ? kgdb_correct_hw_break+0x13/0xc7 [ 0.622511] [<c03a091b>] ? notifier_call_chain+0x2b/0x4a [ 0.622511] [<c03a094b>] ? __atomic_notifier_call_chain+0x11/0x13 [ 0.622511] [<c028bd4e>] ? kgdbts_break_test+0x0/0x1e [ 0.622511] [<c01247b5>] ? printk+0x15/0x17 [ 0.622511] [<c028bd4e>] ? kgdbts_break_test+0x0/0x1e [ 0.622511] [<c028c882>] check_and_rewind_pc+0x9a/0xb4 [ 0.622511] [<c0150b89>] ? kgdb_breakpoint+0x13/0x24 [ 0.622511] [<c028bd4e>] ? kgdbts_break_test+0x0/0x1e [ 0.622511] [<c028ba32>] validate_simple_test+0x22/0x69 [ 0.622511] [<c028c0f0>] run_simple_test+0x1a1/0x20e [ 0.622511] [<c028bacd>] kgdbts_put_char+0x14/0x16 [ 0.622511] [<c01509f2>] put_packet+0x6b/0xbb [ 0.622511] [<c0151dd0>] kgdb_handle_exception+0xba5/0xc6d [ 0.622511] [<c01123ad>] kgdb_notify+0x139/0x160 [ 0.622511] [<c03a091b>] notifier_call_chain+0x2b/0x4a [ 0.622511] [<c03a094b>] __atomic_notifier_call_chain+0x11/0x13 [ 0.622511] [<c03a0959>] atomic_notifier_call_chain+0xc/0xe [ 0.622511] [<c01371fa>] notify_die+0x2d/0x2f [ 0.622511] [<c039f45a>] do_int3+0x29/0x67 [ 0.622511] [<c039ee4b>] int3+0x27/0x2c [ 0.622511] [<c0150b89>] ? kgdb_breakpoint+0x13/0x24 [ 0.622511] [<c028c4d4>] configure_kgdbts+0x1ba/0x404 [ 0.622511] [<c0524413>] init_kgdbts+0x13/0x15 [ 0.622511] [<c0101125>] _stext+0x3d/0x129 [ 0.622511] [<c0524400>] ? init_kgdbts+0x0/0x15 [ 0.622511] [<c0153da6>] ? register_irq_proc+0x9c/0xb5 [ 0.622511] [<c0153de7>] ? init_irq_proc+0x28/0x33 [ 0.622511] [<c050a512>] kernel_init+0xf9/0x147 [ 0.622511] [<c050a419>] ? kernel_init+0x0/0x147 [ 0.622511] [<c0103cbf>] kernel_thread_helper+0x7/0x10 [ 0.622511] ======================= [ 0.622511] ---[ end trace 1534190084874a32 ]--- [ 0.622511] kgdbts: ERROR PUT: end of test buffer on 'singlestep_breakpoint_test' line 3 expected kgdbts_break_test got $000000000000000046000000ab00000064ff84f740ff84f7e803000000000000 [ 0.622511] ------------[ cut here ]------------ [ 0.622511] WARNING: at drivers/misc/kgdbts.c:721 run_simple_test+0x1de/0x20e() [ 0.622511] Modules linked in: [ 0.622511] Pid: 1, comm: swapper Tainted: G W 2.6.27-rc5-00006-gbef69ea #15 [ 0.622511] [<c0123dd6>] warn_on_slowpath+0x41/0x65 [ 0.622511] [<c0124313>] ? release_console_sem+0x185/0x18d [ 0.622511] [<c03a094b>] ? __atomic_notifier_call_chain+0x11/0x13 [ 0.622511] [<c028bd4e>] ? kgdbts_break_test+0x0/0x1e [ 0.622511] [<c01247b5>] ? printk+0x15/0x17 [ 0.622511] [<c01247b5>] ? printk+0x15/0x17 [ 0.622511] [<c028c12d>] run_simple_test+0x1de/0x20e [ 0.622511] [<c028bacd>] kgdbts_put_char+0x14/0x16 [ 0.622511] [<c01509f2>] put_packet+0x6b/0xbb [ 0.622511] [<c0151dd0>] kgdb_handle_exception+0xba5/0xc6d [ 0.622511] [<c01123ad>] kgdb_notify+0x139/0x160 [ 0.622511] [<c03a091b>] notifier_call_chain+0x2b/0x4a [ 0.622511] [<c03a094b>] __atomic_notifier_call_chain+0x11/0x13 [ 0.622511] [<c03a0959>] atomic_notifier_call_chain+0xc/0xe [ 0.622511] [<c01371fa>] notify_die+0x2d/0x2f [ 0.622511] [<c039f45a>] do_int3+0x29/0x67 [ 0.622511] [<c039ee4b>] int3+0x27/0x2c [ 0.622511] [<c0150b89>] ? kgdb_breakpoint+0x13/0x24 [ 0.622511] [<c028c4d4>] configure_kgdbts+0x1ba/0x404 [ 0.622511] [<c0524413>] init_kgdbts+0x13/0x15 [ 0.622511] [<c0101125>] _stext+0x3d/0x129 [ 0.622511] [<c0524400>] ? init_kgdbts+0x0/0x15 [ 0.622511] [<c0153da6>] ? register_irq_proc+0x9c/0xb5 [ 0.622511] [<c0153de7>] ? init_irq_proc+0x28/0x33 [ 0.622511] [<c050a512>] kernel_init+0xf9/0x147 [ 0.622511] [<c050a419>] ? kernel_init+0x0/0x147 [ 0.622511] [<c0103cbf>] kernel_thread_helper+0x7/0x10 [ 0.622511] ======================= [ 0.622511] ---[ end trace 1534190084874a32 ]--- If anybody has any ideas on how I can use this debugger it would be appreciated. regards; -- Justin P. Mattock -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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