In FreeBSD 8.3 release (possibly in earlier release), dump a file system has 2-3GB or more content can cause system hang in a specific case (pipe to compression):
dump FS-on-SATA-drive > usb-drive OK dump FS-on-SATA-drive | anyCompress > sata-drive OK mv a-large-dump-file from STAT drive to a USB drive OK dump small-FS-on-SATA-drive | anyCompress > usb-drive OK small -- 1.8GB or less dump large-FS-on-SATA-drive | anyCompress > usb-drive hang content is 3GB or larger (did not try around 2GB yet) When system hangs, no sub system, such video, network, etc, will function. Typically, the unfinished compressed dump file is around 1.5-2.7GB, so guessing dumped file content is close to or over 2GB when failure occurred. Has anyone encountered the same problem? Because this usually takes a few hours to occur, this is hard to watch how/when it happens. Is any way to debug or determine what status the system is? -Jin _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "freebsd-hackers-unsubscr...@freebsd.org"
