2014-09-01 10:47 GMT+02:00 Martin Pieuchot <mpieuc...@nolizard.org>: > On 30/08/14(Sat) 12:28, ludovic coues wrote: >> 2014-08-30 11:58 GMT+02:00 Martin Pieuchot <mpieuc...@nolizard.org>: >> > On 30/08/14(Sat) 11:46, ludovic coues wrote: >> >> 2014-08-30 10:53 GMT+02:00 Martin Pieuchot <mpieuc...@nolizard.org>: >> >> > Hello Ludovic, >> >> > >> >> > On 28/08/14(Thu) 20:52, ludovic coues wrote: >> >> >> Hello, >> >> >> >> >> >> Recently, I get a kernel page fault every time I try to use the >> >> >> micronucleus [1] command line tool. It 's for uploading an hex file to >> >> >> ATtiny processor, much like arduino's avrude. The crash is pretty >> >> >> consistent, occuring every time I run `micronucleus --run`. >> >> >> I've managed to use it with success in the past on this machine with >> >> >> 55-release so it might be hardware related. I added a realtek wireless >> >> >> device since last time I've get a successful run with micronucleus. >> >> >> >> >> >> I get the following message when I run it: >> >> >> uvm_fault(0xffffffff81daaf001, 0x2, 2, 0, 1) -> e >> >> >> kernel: page fault trap, code=0 >> >> >> Stopped at usbd_get_cdesc+035: movzwl 0x2 (%rax),%eax >> >> >> >> >> >> It's followed by the debugger prompt. I don't know how what to do from >> >> >> that point. I'm willing to spend time tracking the source of the >> >> >> problem but I have no idea of what I'm looking for. >> >> > >> >> > Thanks for reporting the problem. I believe this is the same issue that >> >> > has been reported by Thomas Pfaff in February [0] and fixed post 5.5 >> >> > [1]. >> >> > >> >> > Could you try a snapshot and tell me if you can still reproduce it? >> >> > >> >> > Cheers, >> >> > Martin >> >> > >> >> > [0] http://marc.info/?l=openbsd-bugs&m=139135208628637&w=2 >> >> > [1] http://marc.info/?l=openbsd-cvs&m=139194643911061&w=2 >> >> >> >> I might have failed to upgrade to snapshot but I still have the error. >> >> Right now, I got the snapshot install56.fs file, used it to run an >> >> upgrade and run sysmerge. I must have done something right as >> >> start_daemon isn't available anymore in /etc/rc.local but the error is >> >> still present. >> > >> > In this case could you send me your dmesg, the output of "usbdevs -dv" >> > and the trace when the trap occurs? >> > > Thanks Ludovic, > >> usbdevs -dv: >> [...] >> port 4 addr 3: high speed, power 100 mA, unconfigured, >> RTL8187B(0x8189), Realtek(0x0bda), rev 2.00, iSerialNumber >> 00e04c000001 >> urtw0 > > The problem comes from this driver that does not set any configuration > when it attaches itself to the device. > > Could you test the diff below, it is a sync with urtwn(4), and tell me > if you can reproduce this problem with it? >
Nope, I cannot reproduce :) Thank a lot for your time.
