Date: Tue, 06 Sep 2005 00:33:45 -0600 From: Scott Long <scottl@samsco.org> To: Nikhil Dharashivkar <nikhildharashivkar@gmail.com> Cc: freebsd-hackers@freebsd.org, "Rajesh S. Ghanekar" <rajesh_ghanekar@persistent.co.in>, freebsd-scsi@freebsd.org Subject: Re: Adding new option to ktrace Message-ID: <431D3849.3050706@samsco.org> In-Reply-To: <17db6d3a0509052203b1da14a@mail.gmail.com> References: <17db6d3a0509051000622868bc@mail.gmail.com> <431C8D5B.7080309@samsco.org> <431C92F2.9090104@persistent.co.in> <431C93DD.20402@samsco.org> <17db6d3a0509052203b1da14a@mail.gmail.com>
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Nikhil Dharashivkar wrote: > Hi Scott and Rajesh, > Thanks for replying me. Basically what happend, while testing > scsi driver on freebsd, at some point it crashes. So, there is no way > to know how much IO is performed. To know the IO state just before the > driver fails, i selected ktrace to print IO information whatever i ll > get from dastrategy routine. You have reason to believe that certain I/O patterns cause the crash? What driver is being used? What is the crash? Scott
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