Date: Fri, 13 Jun 2014 12:51:04 -0700 From: David Wolfskill <david@catwhisker.org> To: Adrian Chadd <adrian@freebsd.org>, Stefan Parvu <sparvu@systemdatarecorder.org>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: iwn driver issue Message-ID: <20140613195104.GB1180@albert.catwhisker.org> In-Reply-To: <20140613193635.GC1607@brick.home> References: <20140613112624.bef131c3b84e5e4ad38ed84f@systemdatarecorder.org> <20140613163644.GA1291@brick.home> <20140613165216.GZ1180@albert.catwhisker.org> <CAJ-Vmo=ghNVCAPR7pHWJgoufp9ArOHpvD01GwP3H-PX5JQVQMg@mail.gmail.com> <20140613175819.GA1180@albert.catwhisker.org> <20140613193635.GC1607@brick.home>
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--UXdImcDs+Jp8Skh3 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jun 13, 2014 at 09:36:35PM +0200, Edward Tomasz Napiera??a wrote: > ... > > I normally don't spend a huge amount of time in head -- enough to build > > it & do a quick smoke-test. So it's certainly possible that it merits > > further exploration. And I'm willing experiment, but I cannot test it > > while I'm at work (as I don't use the wireless NIC at work -- I use it > > almost exclusively while I'm at home (and other places), though). >=20 > It would be great if you could help me with this. Basically you need > to enable crashdumps, as described below, and obtain a backtrace. >=20 > http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html I have had crash dumps on panics running head (slice 4 of the boot device, in my case) in the past, so that process works. I just didn't get a dump this morning. :-( d130(9.3)[1] grep dump /S4/etc/rc.conf dumpdev=3D"AUTO" d130(9.3)[2]=20 > Just for the record, the easiest way to make iwn firmware panic > is to enter ddb (ctrl-alt-esc), wait five seconds and exit it > ("c<enter>"). Does that process yield useful information? (That is, is that process sufficiently similar to a sequence of events that occurs in the real world that the resulting information may be used to figure out how to make the code avoid misbehavior?) If so, I can try that soonish (e.g., en route home today, once I've boarded the train -- vs. while I'm still on my bike :-}). Peace, david --=20 David H. Wolfskill david@catwhisker.org Taliban: Evil cowards with guns afraid of truth from a 14-year old girl. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --UXdImcDs+Jp8Skh3 Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQJ8BAEBCgBmBQJTm1YmXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ4RThEMDY4QTIxMjc1MDZFRDIzODYzRTc4 QTY3RjlDOERFRjQxOTNCAAoJEIpn+cje9Bk7pNYP/2ZsfblUTrtdnkj+dvEaPOuC cp++0M1GU5OIkwrgZiNkNu/89JxbcusutZGZJE2QsCXXZCEcbOIVIcV0iyVuM1mO Can1Qcdl3aIdZIRlEKAMp+xsp3LHiv88O5NK6rJRhHrU/EhHD0Typmvz0kp87TIw dgb0Cr0O6VdG4t770XMqro8uNXpocwM7+oCz0WIU1CU2onc3zOpVdicWi3LbANyw D8m+J85gvB+MEHcbZMcYMENsjTsUdU4tFLgdHD11ZU2fq7bZGwkRsfKy2xv58OBJ /3PDDdT9uq6baxepupEHjQe4/siOMN6DmgGj+hRPZhj4szfO2TqrGM3eFAwEyYWi QWwQYr2wUGmrLUrdjYWpjSFapMr61oADLyYShP0E3UkBZHRePyqRSbn1xPbHkH2y cFDdrtia390EZ/ySzL9yJ0IbxXFgQl5DyCsXGEvuacnAmuRf10c93IgZlgRwLikO Xvs+/Insp+aQ6PABywp+2MzC9vJLDiUaiPCZEdALchkZ3PjAujkNxZp8EgVBgvmN wWNNuYGLmdFrsbKWWd+NY1Xuxv0bh5+VxV1K2VBvp6PWwE5pKqOah4jcFwOW5tab DamqaI/I2VfU2NYdx1J4vytkWBLj8xCoQpo/+WaalIVkmAiTV19rpwOGgJvnFWFg 729SCgHvWYt9YvQagr5o =zpln -----END PGP SIGNATURE----- --UXdImcDs+Jp8Skh3--
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