Distribution: Fedora Core (development) Hardware Environment: Compaq Evo N800c Software Environment: Problem Description: Accessing /proc/acpi/battery/C132/state causes laptop to reset. Tried under Fedora kernels: kernel-2.6.7-1.515 kernel-2.6.7-1.517 kernel-2.6.8-1.524 kernel-2.6.8-1.526 kernel-2.6.8-1.532 kernel-2.6.8-1.533 Laptop does not reset if you boot Windows XP (completely updated except SP2). No oops messages or anything in the log. Steps to reproduce: As any user (even non-root): 1. cat /proc/acpi/battery/C132/state 2. Wait a few seconds. 3. Laptop resets Started out as a bug in Red Hat's bugzilla: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=131062
Created attachment 3590 [details] Output of acpidmp
Created attachment 3591 [details] Output of dmesg -s40000
Created attachment 3592 [details] Output of dmidecode
Created attachment 3593 [details] Output of cat /proc/interrupts
Created attachment 3594 [details] Output of lspci -vv
if you do the access with no window system running, do you see anything on the (LCD) console? I don't suppose this model has a serial debug console? any chance you can reproduce with the latest kernel.org kernel? please attach the .config being used.
Created attachment 3626 [details] .config for kernel 2.6.8-1.541
> if you do the access with no window system running, > do you see anything on the (LCD) console? No, there's nothing. > I don't suppose this model has a serial debug console? No, there's no serial port built in. I do have a USB->serial converter, but I haven't seen any evidence that I could use that to debug the kernel. > any chance you can reproduce with the latest kernel.org kernel? I'll take a look tomorrow, but the kernel from Fedora Development I'm using is based upon a very recent kernel snapshot. > please attach the .config being used. See previous post.
same with 2.6.9-based kernel?
No, the problem does not appear with recent 2.6.9-based kernels from Fedora Development or the kernel released with Fedora Core 3.