Date: Mon, 17 Mar 1997 18:24:21 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: joerg_wunsch@uriah.heep.sax.de Cc: current@freebsd.org Subject: Re: Gotcha in moving to post 4.4 lite2 merge ``world''. Message-ID: <199703170754.SAA08636@genesis.atrad.adelaide.edu.au> In-Reply-To: <19970317081614.KK10581@uriah.heep.sax.de> from J Wunsch at "Mar 17, 97 08:16:14 am"
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J Wunsch stands accused of saying: > As Jonathan Lemon wrote: > > > What's happening (in the test case I'm working on) is that the vm86() > > process is going into an infinite loop, and somehow or the other, an AST > > interrupt is not being generated. > > > > Interrupts are enabled, ... > > If interrupts are still working, DDB or remote kgdb should be working, > too? This should simplify debugging. It doesn't much though, at least as far as I've been able to establish. Every time I've broken into the debugger, the CPU is off executing in userland in the vm86 process; presumably because interrupts don't happen during trap processing. Can you set a breakpoint in and step through a trap handler? > cheers, J"org -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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