Valery V.Chikalov wrote: > Hans Petter Selasky wrote: > > On Sunday 29 April 2007 15:02, Valery V.Chikalov wrote: > >> Kevin Lo wrote: > >>> Valery V.Chikalov wrote: > >>>> The following reply was made to PR usb/107642; it has been noted by > >>>> GNATS. > >>>> > >>>> From: "Valery V.Chikalov" <[EMAIL PROTECTED]> > >>>> To: [EMAIL PROTECTED], [EMAIL PROTECTED] > >>>> Cc: > >>>> Subject: Re: usb/107642: [patch]Ralink Technology RT2501USB/RT2601USB > >>>> chipset driver > >>>> Date: Sun, 22 Apr 2007 11:32:18 +0300 > >>>> > >>>> This is a multi-part message in MIME format. > >>>> --------------030900090303000507070905 > >>>> Content-Type: text/plain; charset=UTF-8 > >>>> Content-Transfer-Encoding: 7bit > >>>> > >>>> -----BEGIN PGP SIGNED MESSAGE----- > >>>> Hash: SHA1 > >>>> > >>>> if_rum(4) for 7.0-CURRENT > >>>> > >>>> replaced amrr_* functions by "standard" ones already existed in > >>>> net80211/ieee80211_amrr.c > >>>> > >>>> -----BEGIN PGP SIGNATURE----- > >>>> Version: GnuPG v1.4.5 (MingW32) > >>>> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > >>>> > >>>> iD8DBQFGKx14760S3kDvEC4RAn8PAKCn990QJE0wZRKcwdxAZ61MY0JRgACeI2W5 > >>>> ZosSlh6pIqi7JdZ5Wi1BUYc= > >>>> =LvWZ > >>>> -----END PGP SIGNATURE----- > >>> Hi Valery, > >>> > >>> I guess you wasn't aware that I've already ported rum(4) to FreeBSD. > >>> The patch is available at: http://people.freebsd.org/~kevlo/patch-rum > >>> Maybe you can test my patch? Thanks. > >>> > >>> Kevin > >> Hi, Kevin, > >> > >> Your driver not working for me. Fortunately, the errors that I see > >> exactly the same which i fight when I made my driver. > >> > >> $ uname -a > >> FreeBSD tiger.novakom.dp.ua 7.0-CURRENT FreeBSD 7.0-CURRENT #6: Sun Apr > >> 29 13:58:48 EEST 2007 > >> [EMAIL PROTECTED]:/usr/obj/usr/src/sys/TIGER64 amd64 > >> > >> $ sysctl kern.osreldate > >> kern.osreldate: 700037 > >> > >> cvsup'ed 29.04.2007 > >> > >> kernel with: > >> > >> makeoptions DEBUG=-g > >> > >> options KDB > >> > >> options DDB > >> > >> > >> > >> options INVARIANTS > >> > >> options INVARIANT_SUPPORT > >> > >> options WITNESS > >> > >> At first, when I make kldload if_rum, I get kernel panic. > >> But I cant get saved core, as ddb just hangs during "call doadump" > >> > > > > I have a solution for all of this locking stuff! > > > >> So I add > >> > >> #define RUM_LOCK(sc) do { ((sc) = (sc)); mtx_lock(&Giant); } while > >> (0) > >> #define RUM_UNLOCK(sc) mtx_unlock(&Giant) > >> > >> in if_rumvar.h > >> > >> I spend a lot of time in attempts get rid of Giant ant always got only > >> panics. > > > > You _cannot_ do that with the old USB stack, because you must lock Giant > > before calling into the usbxxx functions. Then in the USB callback, Giant > > is > > locked, and then you cannot lock RUM_LOCK()! That means you will most > > likely > > end up with a deadlock pretty soon, if you see that. > > > > Thanks, for explanations. I suspected that thing are like that, and I > have tried make porting by analogue with other drivers which I can find > in dev/usb, but I was not can find the description of doing "right way" > locking before.
Firstly, thanks for taking the time to test my patch. I think your issue is related to watchdog timers. The revised patch is at http://people.freebsd.org/~kevlo/patch-rum Besides, I don't get a panic during high load when getting a file about 400MB via ftp. > >> After that I get hangs, > >> which i resolved by modifying rum_ioctl: > > > > I'm almost finished converting "if_rum.c()" to the new USB stack. > > > > In some hours I will update it with support for "if_rum". > > > > If you can test that and forget about the old USB stack, I will be very > > happy :-) > > > > I will do it with pleasure. I was almost ready to do it (converting to > new USB stack) by myself, but I was stopped by the fact that I cant make > it compiled under CURRENT. I have seen your mail that your are working > on this. Is new the USB stack ready for CURRENT now? > > Valery. > > > --HPS > > > > http://www.turbocat.net/~hselasky/usb4bsd Kevin _______________________________________________ freebsd-usb@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "[EMAIL PROTECTED]"
