Debugging a process
Hello, I've got an Epson printer I've set up with CUPS. Unfortunatley it came out, that the program CUPS uses internally (rastertoprinter) gets some kind of lockup right after ending the page - it starts to eat up 100% CPU; CUPS gets the message Page finished, but the job stays there - and the printer device (lpt0) is in use. Well, so I did gdb, attached to the PID, typed bt... nothing. Just a few lines with addr no and question marks. I've recompiled said program (and the library it depends on) with -g in CFLAGS. Nothing. It came out, that the binary was stripped during install. I've installed unstripped binary. Still the same thing. Googled. Nothing really useful found. At this point, I feel pretty lost - I've thought, that I know, what I have to do when I want to have debugging info compiled in, and how to use gdb (I know enough to get the backtrace, which is sufficient). Any help / any ideas? -- Michal Pasternak :: http://pasternak.w.lub.pl :: http://winsrc.sf.net Frankly, any company would look bad if their corporate e-mail was available for anyone to read, -- Jim Dose of Ritual Entertainment. ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Debugging a process
Michal Pasternak [Fri, May 21, 2004 at 08:38:41PM +0200]: Hello, I've got an Epson printer I've set up with CUPS. Unfortunatley it came out, that the program CUPS uses internally (rastertoprinter) gets some kind of lockup right after ending the page - it starts to eat up 100% CPU; CUPS gets the message Page finished, but the job stays there - and the printer device (lpt0) is in use. Well, so I did gdb, attached to the PID, typed bt... nothing. Just a few lines with addr no and question marks. Well, I'm answering myself: $ gdb nameOfExecutableWithDebugSymbols gdb attach PID ... and, voila, that's all that it's needed. -- m ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Debugging a process
On Fri, May 21, 2004 at 10:47:17PM +0200, Michal Pasternak wrote: Michal Pasternak [Fri, May 21, 2004 at 08:38:41PM +0200]: Hello, I've got an Epson printer I've set up with CUPS. Unfortunatley it came out, that the program CUPS uses internally (rastertoprinter) gets some kind of lockup right after ending the page - it starts to eat up 100% CPU; CUPS gets the message Page finished, but the job stays there - and the printer device (lpt0) is in use. Well, so I did gdb, attached to the PID, typed bt... nothing. Just a few lines with addr no and question marks. Well, I'm answering myself: $ gdb nameOfExecutableWithDebugSymbols gdb attach PID ... and, voila, that's all that it's needed. You could also use ktrace(1). Nathan pgphkHrGYIVkS.pgp Description: PGP signature
