Date: Wed, 18 Apr 2012 18:38:55 +0200 From: Gary Jennejohn <gljennjohn@googlemail.com> To: Adrian Chadd <adrian@freebsd.org> Cc: freebsd-hackers <freebsd-hackers@freebsd.org>, Jerry Toung <jrytoung@gmail.com> Subject: Re: CAM disk I/O starvation Message-ID: <20120418183855.4b429ebc@ernst.jennejohn.org> In-Reply-To: <CAJ-VmomN3j=aJW%2BUfg73SUu6JzV0=PtMUVARnxeup7XEJ8Fbmg@mail.gmail.com> References: <CADC0LV=-e%2B7PshRQdc69e2-Vktf6XFpVrqiMpx=QL4m_%2B9hSnw@mail.gmail.com> <20120403193124.46ad9de9@ernst.jennejohn.org> <CADC0LVm1HY2Dz%2BVk_GK35szRS6ySviLhMiL1TSRBOnPwQnBwRg@mail.gmail.com> <20120411192153.5672b62c@ernst.jennejohn.org> <CAJ-VmokwR%2BVHmup6OLN%2BBGHvoAeLvJ9%2BBeZ9Fm6xM7Pio73pzQ@mail.gmail.com> <20120417211558.4793b705@ernst.jennejohn.org> <CAJ-VmomN3j=aJW%2BUfg73SUu6JzV0=PtMUVARnxeup7XEJ8Fbmg@mail.gmail.com>
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On Tue, 17 Apr 2012 12:30:15 -0700 Adrian Chadd <adrian@freebsd.org> wrote: > On 17 April 2012 12:15, Gary Jennejohn <gljennjohn@googlemail.com> wrote: > > I still have the old problem kernel around, but it's probably not > > instrumented for any meaningful diagnoses. > > Well do you know which version of which tree you used to build that? > If it's head, you could "just" keep an earlier source tree around to > build a kernel from. > My /usr/src is from SVN, so I just need to boot it and do uname to get the revision. As a former src committer I like to be on the bleeding edge and I always run HEAD. -- Gary Jennejohn
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