Messages in this thread | | | From | David Gümbel <> | Date | Thu, 4 Dec 2003 14:34:56 +0100 | Subject | [Oops] ACPI problem with 2.6.0-test11 on Asus L3800C |
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[Please CC me, as I am not subscribed to this list]
I have recently installed 2.6.0-test11 on my Asus L3800C laptop. One thing I stumbled across was that it is no longer possible to set the CPU performance via ACPI. It worked fine with 2.4.21 with acpi-patch applied. The behaviour is reproducible, i.e. it happens every time I try to set the performance. Symptoms are as follows:
When executing 'echo 1 > /proc/acpi/processor/CPU0/performance', I got the following (visible via dmesg):
------------------------------------------------------------------------- Unable to handle kernel NULL pointer dereference at virtual address 00000030 printing eip: c0115b3d *pde = 00000000 Oops: 0000 [#1] CPU: 0 EIP: 0060:[<c0115b3d>] Not tainted EFLAGS: 00210202 EIP is at acpi_processor_write_performance+0x12d/0x17f eax: 00000020 ebx: cf62d2a0 ecx: dfd4d3a4 edx: dfd4d3c4 esi: 00000000 edi: 00000002 ebp: c734bec4 esp: c734beb0 ds: 007b es: 007b ss: 0068 Process bash (pid: 10637, threadinfo=c734a000 task=d1cb26a0) Stack: c734bec4 00000000 00000000 c13d3038 c01452e0 00000000 001e8480 00124f80 000000fa 00124f80 001e8480 000007d0 00000000 c042cd40 00000000 00000000 dfd4d3ac dfd4d3ac 00124f80 001e8480 00000000 c042cd40 dfd4d3c8 66757063 Call Trace: [<c01452e0>] do_anonymous_page+0x138/0x21f [<c0152d6e>] vfs_write+0xbc/0x127 [<c0152e7e>] sys_write+0x42/0x63 [<c010b31b>] syscall_call+0x7/0xb
Code: 8b 48 10 b8 e8 03 00 00 89 2c 24 f7 e1 89 44 24 28 e8 42 a8
-----------------------------------------------------------------------
I attached my $(grep ^C .config) and the output of dmesg and lsmod. The Cisco Modules that taint the kernel (see dmesg file) do not change the behaviour. dmesg output contains the described error twice, the first time triggered by the KDE laptop daemon, and the second time by a cat as described. Above output was taken from a untainted kernel instance (but I need those Cisco modules for internet connectivity ;)
If any information or tests are needed, I will be happy to provide / run them ;)
Greetings
David [unhandled content-type:application/x-gzip][unhandled content-type:application/x-gzip][unhandled content-type:application/x-gzip] | |