<adding linux-input@ where the hid developers live...> On Mon, Aug 12, 2013 at 01:56:40PM +0200, Andreas Lillebø Holm wrote: > When communicating with AT90USB1287, at random intervals (1/25 boots) > the linux hid_output_field Oopses and kills the communicating thread. > The AT90USB1287 microcontroller uses LUFA library for usb/hid > communication. It is trigged by a ioctl call from userspace and fails > in a kernel paging request. The system is after the oops in a state > where no hid commands is sent anymore and only a boot can fix the > system. > > Keywords: usbhid hid > > Kernel version: Linux version 3.8.13-03081301-generic (apw@gomeisa) (gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5) ) #201305311535 SMP Fri May 31 19:44:30 UTC 2013 > > Oopses: > http://paste.debian.net/24305 > http://paste.debian.net/24306 > http://paste.debian.net/24307 > > Code: > The error is triggered by: > ioctl(fd,HIDIOCSUSAGES, &ref_multi_u); > ioctl(fd,HIDIOCSREPORT, &rep_info_u); > > Notes: > It is very hard to reproduce so seems like race condition… > > Any tips to resolve/workaround this issue is appreciated and please > let me know if my information is incomplete (This is my first kernel > bug report) Any chance you can try a supported kernel, like 3.10.6 or 3.11-rc5 to see if that also causes problems? We can't do anything with distro-specific kernel releases like your 3.8.13 release from Ubuntu, sorry. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
