Date: Wed, 16 Apr 2014 10:38:55 -0400 From: John Baldwin <jhb@freebsd.org> To: Claude Buisson <clbuisson@orange.fr> Cc: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Re: Unable to mount the root fs on stable/8 r264339, GENERIC kernel, with MBR, FreeBSD slice, and UFS volume labels Message-ID: <201404161038.55512.jhb@freebsd.org> In-Reply-To: <534E5058.20106@orange.fr> References: <alpine.BSF.2.00.1404111820160.9102@mail.fig.ol.no> <alpine.BSF.2.00.1404161006180.9102@mail.fig.ol.no> <534E5058.20106@orange.fr>
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On Wednesday, April 16, 2014 5:41:44 am Claude Buisson wrote: > On 04/16/2014 10:09, Trond Endrest=F8l wrote: > > On Tue, 15 Apr 2014 19:44+0200, Trond Endrest=F8l wrote: > > > >> On Fri, 11 Apr 2014 18:38+0200, Trond Endrest=F8l wrote: > >> > >>> Hi, > >>> > >>> I have a couple of uncritical systems running stable/8 r258344. > >>> Hardware is Dell OptiPlex GX260, BIOS A09, which is the latest rev. > >>> > >>> The r264339 GENERIC kernel are unable to mount the root fs from the > >>> hard drive using MBR, FreeBSD slice, and UFS volume labels. > >>> > >>> r258344 obviously can. > >>> > >>> I even tried regular device names like /dev/ad0s1a in /etc/fstab, and > >>> at the mountroot> prompt, i.e. ufs:/dev/ad0s1a. The kernel still > >>> cannot mount the root fs. > >>> > >>> The new kernel (r264339) does recognize the ad0 harddrive, and ad0 is > >>> listed as one of the GEOM managed disk devices; acd0 being the other > >>> one. > >>> > >>> Do I need to load additional geom modules, or is it a genuine bug? > >>> > >>> I have recreated the same conditions on a spare GX260, yes, I have > >>> plenty of them. > >> > >> I believe I have identified r262226 as the offending commit. > >> > >> Maybe the flags integer is set to a bad value before the calls to > >> resource_list_alloc(). > >> > >> My spare system is currently recompiling r262221 of both world and > >> kernel, and I hope to confirm this assumption in a few hours. > > > > Confirmed. > > > >> If all goes well, I intend to move forward to the latest revision of > >> stable/8, back out the change done to sys/dev/pci/pci.c in r262226, > >> recompile world and kernel, install the kernel, and if successfully, > >> I'll install world as well. > > > > Confirmed, stable/8 r264519 with r262226 backed out does indeed work > > on a Dell OptiPlex GX260, BIOS A09. > > >=20 > Just another data point related to r262226: >=20 > Yesterday, I upgraded a stable/8 system from r260539 to r264426, which co= uld not=20 > finish booting. In my case, it stopped just after detecting an agp card (= and=20 > could boot if agp was disabled by device.hints). >=20 > Reverting r262226 gave me back a fully usable system. >=20 > This system is also a Dell, but a (oldish) Dimension 4550 BIOS A08. >=20 > > Any chance anyone would like to dig deeper into the matter? > > Should I file a PR? > > >=20 > I think so, if jhb (cced) keep being interested in stable/8.. >=20 > BTW, this morning I succeeded in booting a stable/10 snapshot r264194 USB= stick=20 > on this machine. Can you get a verbose dmesg with and without the change? =2D-=20 John Baldwin
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