Date: Mon, 23 Feb 2009 14:58:22 +0100 From: Adrian Gschwend <ktk@netlabs.org> To: freebsd-fs@freebsd.org Subject: kernel panic while writing to a ZFS volume on iSCSI LUN Message-ID: <gnua1v$g28$1@ger.gmane.org>
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Hi, I am testing ZFS, iSCSI & snapshots on FreeBSD as I want to use it later for some productive data. While doing an rsync from a maildir with lots of small files, the box crashed. Until then there were about 3.5GB of data transferred Platform: FreeBSD 7.1, i386, install from CD Box: Xeon 3.2 something RAM: 1.5GB 50GB iSCSI LUN on Network Appliance Filer I tried to get some hints out of the dump file according to http://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug-gdb.html but I noticed I had to get source first & compile the kernel on my own. The backtrace here is done using a kernel.debug which got compiled out of RELENG_7_1, but it was *not* the same kernel which was running at the time of the crash (kernel was the default one, not the compiled one). Does that make a difference for my case or is that ok like this? Message in /var/log/messages on reboot: - Feb 20 00:01:23 chewbacca savecore: reboot after panic: kmem_malloc(131072): kmem_map too small: 228896768 total allocated Feb 20 00:01:23 chewbacca savecore: writing core to vmcore.0 - backtrace: http://freebsd.pastebin.com/m36e7ddd0 My question is if it is crashing in iSCSI or ZFS code & what I should try to get rid of it :-) thanks Adrian -- Adrian Gschwend @ netlabs.org ktk [a t] netlabs.org ------- Open Source Project http://www.netlabs.org
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