Date: Wed, 11 Sep 2013 16:25:53 +0200 From: Polytropon <freebsd@edvax.de> To: Pawel Sulewski <p.sulewski@samsung.com> Cc: freebsd-questions@freebsd.org Subject: Re: question Message-ID: <20130911162553.51478c63.freebsd@edvax.de> In-Reply-To: <000301ceaec2$55848640$008d92c0$%sulewski@samsung.com> References: <000301ceaec2$55848640$008d92c0$%sulewski@samsung.com>
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On Wed, 11 Sep 2013 09:41:31 +0200, Pawel Sulewski wrote: > How to recognize kernel panic and dump memory state onto USB device using C > language? The kernel has its own crash handling and will initiate the writing of the proper image automatically. It will be stored on the partition designated by the /etc/rc.conf setting dumpdev="<device>", usually a swap partition, and at next boot time that image will be written to a file in /var/crash, if nothing else has been defined with dumpdir="<directory>" (same file; see "man rc.conf" and /etc/defaults/rc.conf for details). If you want to coredump to a USB device, you need to configure this accordingly. You can find more information about this topic in the following manual pages: "man 2 sigaction", "man 8 crash", and "man 5 core". -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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