so how to include those outputs when bug reporting? On Wednesday, February 23, 2011, Nick Holland <[email protected]> wrote: > On 02/23/11 18:21, Silvio Bandeira wrote: >> How can I redirect the output of 'trace' and 'ps' in ddb to a file? >> >> Thanks in advance. >> > > with 'vi' (or mg, or emacs). yeah, not fun, I know, I know very vividly > and repeatedly, so I don't want to hear the complaints. :) > > Think about what you ask, however. The kernel just entered a state it > didn't want to be in, do you really trust it to write nicely, legibly > and between the lines on your file system? > > The output of "trace" and "ps" is stored in the dmesg buffer. In some > cases, if you get really lucky, the dmesg buffer is preserved after you > do a "boot reboot" at the ddb prompt, and when you do a "dmesg" after > the reboot, it's there for you. While I have lots of machines that > preserve dmesg across boots, those machines usually don't seem to ever > panic, the ones that panic don't save the dmesg buffer. :( > > Nick. >
-- Silvio Bandeira
