-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 9/22/10 5:02 PM, Andriy Gapon wrote: > on 22/09/2010 22:58 John Baldwin said the following: > >> Agreed. FWIW, I actually think that this is the only change needed as >> crashinfo is enabled by default in 8.x and later. We already include symbols >> in kernels by default now, so just setting dumpdev will give you the same >> info you generally can get from a textdump in the form of a simple >> /var/crash/core.txt.N file. >> >> The other benefit of full crashdumps + crashinfo as compared to textdumps is >> that a developer can request further information in a PR followup (fire up >> kgdb and enter command 'X' and reply with the output). With a textdump any >> info not collected by the textdump is lost once the machine reboots after the >> crash. > > Agree++ > But what was the reason that dumpdev="AUTO" was reverted? > I remember that POLA was quoted at the time. > I am not sure what the astonishment actually was - perhaps 'AUTO' was not > smart > enough and destroyed somebody's data? >
Not everybody would notice /var getting full of crash dumps. Picture a server farm where for the most part the machines are all just plain on auto-pilot. If one or several develop a problem that causes panic's /var can become full and possibly cause the machine to stop doing something important (between panic's...). I wasn't around when the initial decision for what to have it set to was made but this was the reason for me starting to do it again when I realized I forgot to at least once, and hence the reference to POLA. Crash dumps are good for individual workstations. Crash dumps are good for servers *if* the admin knows they're having a problem and is actively working on that server to resolve the issue. But they're no so good and can cause nasty side-effects if they're happening on a machine not being watched over closely. That's the reason for the change in setting when a -stable branch gets started. - -- Ken Smith - - From there to here, from here to | kensm...@buffalo.edu there, funny things are everywhere. | - Theodore Geisel | -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkyace0ACgkQ/G14VSmup/bfKwCdGWyWxuG91GSss6q3MUFAPi2r 6iwAmgLxxEXEODYubhfOFGkzwNx9r/Au =IIBd -----END PGP SIGNATURE----- _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"