From: Suraj S. <su_...@ya...> - 2003-09-18 16:25:36
Attachments:
uml.txt
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Hi, I have built 2.6.0-test5 kernel but, when I start it up it exits without any errors (on console, detail in the attachment). I followed the howto at user-mode-linux.sourceforge.net. Did try a strace, this threw up errors that I am unable to understand. Attached is the output. Please help me. Thank you. Regards, suraj. p.s.: I must say I haven't search the archives, but I have been googling for a while (about 4 hrs) now, unsuccessfully. p.s. to p.s: I am using a 2.4G Intel box with RHL 9 __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com |
From: M A Y. <m.a...@du...> - 2003-09-18 16:40:27
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On Thu, 18 Sep 2003, Suraj Shankar wrote: > I have built 2.6.0-test5 kernel but, when I start it > up it exits without any errors (on console, detail in > the attachment). I suggest you check what kernel options you picked when you compiled it - I have an idea that you can get this sort of problem if you haven't picked the right character device drivers necessary to talk to the host system. Michael Young |
From: Jeff D. <jd...@ad...> - 2003-09-23 20:23:33
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su_...@ya... said: > Did try a strace, this threw up errors that I am unable to understand. > Attached is the output. Cool, that should give me clue what's going on. Jeff |
From: Jeff D. <jd...@ad...> - 2003-11-10 01:15:22
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su_...@ya... said: > wait4(-1, [WIFSTOPPED(s) && WSTOPSIG(s) == SIGUSR1], WUNTRACED, NULL) = 25898 > gettimeofday({1063901665, 494966}, NULL) = 0 > ptrace(PTRACE_PEEKUSER, 25898, 4*EIP, [0xa016da41]) = 0 > munmap(0xa02cd000, 0) = -1 EINVAL (Invalid argument) > ptrace(PTRACE_KILL, 25898, 0, 0) = 0 > write(1, "\n", 1 > ) = 1 > munmap(0x40000000, 4096) = 0 > exit_group(0) = ? This is the kernel telling the tracing thread that it is shutting down. Can you run it with 'debug', put a breakpoint in machine_power_off, and get a stack trace from there? Jeff |
From: Andrew P. <ap...@cd...> - 2003-11-26 02:27:33
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On Sun, 9 Nov 2003, Jeff Dike wrote: > su_...@ya... said: > > wait4(-1, [WIFSTOPPED(s) && WSTOPSIG(s) == SIGUSR1], WUNTRACED, NULL) = 25898 > > gettimeofday({1063901665, 494966}, NULL) = 0 > > ptrace(PTRACE_PEEKUSER, 25898, 4*EIP, [0xa016da41]) = 0 > > munmap(0xa02cd000, 0) = -1 EINVAL (Invalid argument) > > ptrace(PTRACE_KILL, 25898, 0, 0) = 0 > > write(1, "\n", 1 > > ) = 1 > > munmap(0x40000000, 4096) = 0 > > exit_group(0) = ? > > This is the kernel telling the tracing thread that it is shutting down. > > Can you run it with 'debug', put a breakpoint in machine_power_off, and > get a stack trace from there? Hi, Jeff I'm pretty much getting the same thing. Except I'm running linux-2.4.21. I tried to get a bt dump, but whenever gdb hits the break point that I set, it says Kernel panic: Kernel mode signal 5 and it exits, so there is no stack to print. What should I do? Just for the record, I am doing the following to attach gdb linux debugtrace ubd0=root.custom and this will yield PID to attach to. So I run gdb -p [PID yielded] (gdb) b stdio_init this yields the above output. But if I do (gdb) b machine_power_off then it just hangs at Initializing stdio console driver what gives? Andrew Park ________________________________________________________________________ CDF Network and Systems Administrator www.cdf.toronto.edu GnuPG Signature www.cdf.utoronto.ca/~apark/public_key.txt ________________________________________________________________________ |
From: Jeff D. <jd...@ad...> - 2003-12-05 23:52:35
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ap...@cd... said: > I'm pretty much getting the same thing. Except I'm running > linux-2.4.21. I tried to get a bt dump, but whenever gdb hits the > break point that I set, it says > Kernel panic: Kernel mode signal 5 > and it exits, so there is no stack to print. What should I do? Then put a breakpoint on panic and get a stack from there. Chase that problem down and then you can go back to chasing the exit problem. Jeff |