Date: Wed, 30 Jul 2014 19:02:34 -0400 From: Shawn Webb <lattera@gmail.com> To: Ian Lepore <ian@FreeBSD.org> Cc: freebsd-arm@freebsd.org Subject: Re: Kernel Panic on BeagleBone Black Message-ID: <20140730230234.GM1869@pwnie.vrt.sourcefire.com> In-Reply-To: <1406742959.56408.220.camel@revolution.hippie.lan> References: <20140730121922.GI1869@pwnie.vrt.sourcefire.com> <1406741430.56408.218.camel@revolution.hippie.lan> <20140730174332.GJ1869@pwnie.vrt.sourcefire.com> <1406742959.56408.220.camel@revolution.hippie.lan>
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[-- Attachment #1 --] On Jul 30, 2014 11:55 AM -0600, Ian Lepore wrote: > On Wed, 2014-07-30 at 13:43 -0400, Shawn Webb wrote: > > On Jul 30, 2014 11:30 AM -0600, Ian Lepore wrote: > > > On Wed, 2014-07-30 at 08:19 -0400, Shawn Webb wrote: > > > > Hey All, > > > > > > > > I've just updated to a recent HEAD (r269240). I get a kernel panic > > > > almost immediately on boot. Below is the log. > > > > > > > > ==== Start of dump ==== > > > > cpsw0: <3-port Switch Ethernet Subsystem> mem 0x4a100000-0x4a103fff irq 40,41,42,43 on simplebus0 > > > > cpsw0: CPSW SS Version 1.12 (0) > > > > cpsw0: Initial queue size TX=128 RX=384 > > > > cpsw0: Ethernet address: 1c:ba:8c:e4:6d:6a > > > > cpsw0: Failed to read from PHY. > > > > cpsw0: attaching PHYs failed > > > > > > > > vm_fault(0xc070b9e0, 0, 1, 0) -> 1 > > > > Fatal kernel mode data abort: 'Translation Fault (S)' > > > > trapframe: 0xc080eb28 > > > > FSR=00000005, FAR=00000018, spsr=80000193 > > > > r0 =c266f280, r1 =00000000, r2 =00000019, r3 =60000193 > > > > r4 =00000000, r5 =c266f280, r6 =00000006, r7 =c05c99b4 > > > > r8 =c266f280, r9 =c26ca28c, r10=c26c80c8, r11=c080eb88 > > > > r12=00000000, ssp=c080eb78, slr=c05ee1cc, pc =c03d2614 > > > > > > > > [ thread pid 0 tid 100000 ] > > > > Stopped at device_delete_child+0x14: ldr r1, [r4, #0x018] > > > > db> bt > > > > Tracing pid 0 tid 100000 td 0xc070b6d0 > > > [...] > > > > Unable to unwind further > > > > ==== End of dump ==== > > > > > > > > If there's anything I can do, let me know. > > > > > > > > Thanks, > > > > > > > > Shawn > > > > > > Hmm, I can't reproduce this on my BB White at r269302. The real error > > > is "Failed to read from PHY". The kernel abort was just accidental > > > fallout from trying to clean up and detach the ethernet driver since it > > > failed to init properly (error paths never get tested enough). > > > > > > What was the prior release you were on that worked okay? > > > > > > Since I just made a series of changes to armv6 busdma I'm tempted to > > > suspect them, even though there shouldn't be any DMA involved in talking > > > to the PHY. Still, it would be interesting to know if backing off to > > > r269134 makes the problem go away. > > > > > > -- Ian > > > > > > > > > > The release prior worked okay. I did get occasional kernel panics > > (though, I didn't have time to do a backtrace and post here about it). > > I'm unsure what svn rev the prior build was at. I can try reverting that > > revision you mentioned tonight and report back if you'd like. > > > > Thanks, > > > > Shawn > > Don't revert that single revision I mentioned, revert the whole source > tree to that rev (or to speed things up, really just the sys tree, and > rebuild just the kernel). > > -- Ian > > I just updated to HEAD from just a few moments ago. No kernel panic. Good to go. Thanks, Shawn [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJT2XmKAAoJEGqEZY9SRW7ue8MP/0uNGKCPoCsR8WVkDqQ0LYH9 hgrmTyRnsDuMuiZii9OGNiCMwYFT9ruTOGXmzynzA5CTFTJejrNVk5wuJqvu2I2C XyvZ8z7QK5qzp8/pa89nuv4dUjlBlujIbTKGSu9WwG4BR9TRA/2vLfGO6EWclgvC tuToRKBTlWAydBiEEHp1NcgiuMRVHF97KbSxTvYLD3ba6bOMRxkTB9cPYzT0aMpu iBh0JUeYSDb6Txt2bZv8dKHBEY+v0zO5dCNFtmN1KgGnWSqi6hWyTnl9fiJEbJVb lap72gZPJgnRFIm0TBeF0j0mcBtwFagbfDOUtJ70IFUWo+fdzUBYnbyXTWj5WSnO XnoOo6i/6BxrAtqLCsr1RAVnP4399refg3q0L6YlaiHOGZoyzqxEvnyBq7UlACdH 2MKAheM3Ob1Z7nDeZDrcFgtovQ+EfuuTGmrgtYgYOefL/9/rwZtSI8DMd7AkWxph +1EHGj6ogmSM0AxUxxjCZQ1CuG0+nCLxIYOgEFgEYymgeQHEfx8lNIvfBS5wcYDy GgLuODVPJmDGKI7/GUk94L5VWgcskGyaWhPOC7IunsdPHIA71Q8HiBIPSJXuKqYG 7vdEQIGhxp3gHwmcq2JuNMMjV2hmHcQ5bDkxXK5VNi3YEdN+Sfnxh6h8MVuYeqQg 1JPcxrSGS0X+D+b1Qq6F =aJ6C -----END PGP SIGNATURE-----home | help
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