Lines Matching +full:01 +full:a
4 Kernel bug reports often come with a stack dump like the one below::
70 handed to ``syslogd`` which writes it to a syslog file, typically
78 since ``kmsg`` is a "never ending file".
85 planned for a crash. Alternatively, you can take a picture of
86 the screen with a digital camera - not nice, but better than
88 may find that booting with a higher resolution (e.g., ``vga=791``)
92 (2) Boot with a serial console (see
94 run a null modem to a second machine and capture the output there
104 Reporting a bug works best if you point the location of the bug at the
114 The usage of gdb works best on a kernel compiled with ``CONFIG_DEBUG_INFO``.
119 On a kernel compiled with ``CONFIG_DEBUG_INFO``, you can simply copy the
164 If you have a call trace, such as::
193 To debug a kernel, use objdump and look for the hex offset from the crash
214 <8b> 83 3c 01 00 00 89 44 24 14 8b 45 28 85 c0 89 44 24 18 0f 85
216 Put the bytes into a "foo.s" file like this:
251 For example, if you find a bug at the gspca's sonixj.c file, you can get
265 a git tree). On the above example, Tejun and Bhaktipriya (in this
287 but also providing us with a solution. After all, open source is about
290 If you decide to take this way, once you have worked out a fix please submit
308 When a protection fault occurs the ``klogd`` daemon automatically
319 must be able to find a system map file at daemon initialization time.
328 The kernel supports system calls which allow a program to determine
330 system calls the klogd daemon builds a symbol table which can be used
331 to debug a protection fault which occurs in a loadable kernel module.
338 Since the kernel module environment can be dynamic there must be a
339 mechanism for notifying the ``klogd`` daemon when a change in module
345 A patch is included with the sysklogd distribution which modifies the
346 ``modules-2.0.0`` package to automatically signal klogd whenever a module
351 The following is an example of a protection fault in a loadable module
354 Aug 29 09:51:01 blizard kernel: Unable to handle kernel paging request at virtual address f15e97cc
355 Aug 29 09:51:01 blizard kernel: current->tss.cr3 = 0062d000, %cr3 = 0062d000
356 Aug 29 09:51:01 blizard kernel: *pde = 00000000
357 Aug 29 09:51:01 blizard kernel: Oops: 0002
358 Aug 29 09:51:01 blizard kernel: CPU: 0
359 Aug 29 09:51:01 blizard kernel: EIP: 0010:[oops:_oops+16/3868]
360 Aug 29 09:51:01 blizard kernel: EFLAGS: 00010212
361 Aug 29 09:51:01 blizard kernel: eax: 315e97cc ebx: 003a6f80 ecx: 001be77b edx: 00237c0c
362 Aug 29 09:51:01 blizard kernel: esi: 00000000 edi: bffffdb3 ebp: 00589f90 esp: 00589f8c
363 Aug 29 09:51:01 blizard kernel: ds: 0018 es: 0018 fs: 002b gs: 002b ss: 0018
364 Aug 29 09:51:01 blizard kernel: Process oops_test (pid: 3374, process nr: 21, stackpage=00589000)
365 …Aug 29 09:51:01 blizard kernel: Stack: 315e97cc 00589f98 0100b0b4 bffffed4 0012e38e 00240c64 003a6…
366 …Aug 29 09:51:01 blizard kernel: 00000000 00237810 bfffff00 0010a7fa 00000003 00000001 00000…
367 …Aug 29 09:51:01 blizard kernel: bffffdb3 bffffed4 ffffffda 0000002b 0007002b 0000002b 00000…
368 …Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system…
369 Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3