Date: Wed, 10 Jul 2013 11:57:10 -0700 From: Jordan Hubbard <jkh@mail.turbofuzz.com> To: Julian Elischer <julian@elischer.org> Cc: hackers@freebsd.org Subject: Kernel dumps [was Re: possible changes from Panzura] Message-ID: <9890DFF1-892A-4DCA-9E33-B70681154F43@mail.turbofuzz.com> In-Reply-To: <FDEEB55D-823B-4899-8EEC-7F5306D91F5B@elischer.org> References: <FDEEB55D-823B-4899-8EEC-7F5306D91F5B@elischer.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Jul 10, 2013, at 11:16 AM, Julian Elischer <julian@elischer.org> = wrote: > My first candidates are: Those sound useful. Just out of curiosity, however, since we're on the = topic of kernel dumps: Has anyone even looked into the notion of an = emergency fall-back network stack to enable remote kernel panic (or = system hang) debugging, the way OS X lets you do? I can't tell you the = number of times I've NMI'd a Mac and connected to it remotely in a = scenario where everything was totally wedged and just a couple of = minutes in kgdb (or now lldb) quickly showed that everything was waiting = on a specific lock and the problem became manifestly clear. The feature also lets you scrape a panic'd machine with automation, = running some kgdb scripts against it to glean useful information for = later analysis vs having to have someone schlep the dump image manually = to triage. It's going to be damn hard to live without this now, and if = someone else isn't working on it, that's good to know too! - Jordan
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?9890DFF1-892A-4DCA-9E33-B70681154F43>