Date: Sun, 5 Dec 2004 11:53:39 +0000 (GMT) From: Robert Watson <rwatson@freebsd.org> To: Marta Resende <martarese@hotmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: NFS filesystem breaks the boot Message-ID: <Pine.NEB.3.96L.1041205114950.33974C-100000@fledge.watson.org> In-Reply-To: <BAY13-F13B287EF329551BC5C9FBAA5B30@phx.gbl>
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On Sun, 5 Dec 2004, Marta Resende wrote: > Hey,i upgrade using that options: > > #cd /usr/src > #make buildworld > #make buildkernel KERNCONF=MINE > #make installkernel KERNCONF=MINE > #reboot > (press 4 for single-user mode) > #fsck -p > #mount -u / > #mount -a > #cd /usr/src > #mergemaster -p > #make installworld > #mergemaster > > and when i reboot, freebsd stops under "Mounting NFS file systems:." Could you try hitting Ctrl-T at the point where things seem stuck? This will cause the kernel to print out information on the current foreground process. It will also tell us what, at a kernel level, the process is blocked on. For example: paprika:~/ngcmac> sleep 10 load: 0.01 cmd: sleep 45193 [nanslp] 0.00u 0.00s 0% 452k The sleep command is typically blocked in the nanslp wait channel in the kernel. You are likely to find a process blocked in [kqread], which is often a suggestion that the process is blocked in a DNS lookup: paprika:~/freebsd/commit/src/sys/kern> telnet www.unresolveable.org load: 0.08 cmd: telnet 45211 [kqread] 0.01u 0.00s 0% 1944k Robert N M Watson FreeBSD Core Team, TrustedBSD Projects robert@fledge.watson.org Principal Research Scientist, McAfee Research
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