Date: Mon, 5 Jun 2006 12:00:05 -0600 From: Lonnie Olson <fungus@aros.net> To: freebsd-stable@freebsd.org Subject: Requesting advice for panic: vm_thread_new: kstack allocation failed Message-ID: <04E7E1FC-4408-4808-B5BC-18DE60249185@aros.net>
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--Apple-Mail-2--575486184 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed I currently have a problem that others have had before, but no one actually did anything to explain or help. I have a mail server that is often under high load. It panics about every day or two with "vm_thread_new: kstack allocation failed". I have a dump, but I doubt it is necessary as the details of this problem have been documented many times before. threads/80435: panic on high loads http://lists.freebsd.org/pipermail/freebsd-threads/2005-April/ 003025.html No resolution because reporter wasn't running -STABLE. panic: vm_thread_new: kstack allocation failed http://lists.freebsd.org/pipermail/freebsd-current/2006-March/ 061544.html No discussion about it other than testing methods. FreeBSD 5.4-P12 Panic "vm_thread_new: kstack allocation failed" under load http://lists.freebsd.org/pipermail/freebsd-questions/2006-March/ 116290.html Just a "pass the buck" comment about upgrading to 6.1 I *am* running 6-STABLE. I have had this particular panic since 5.4- RELEASE. I am using an SMP kernel with only this change to fix a different kernel panic before. options VM_KMEM_SIZE_MAX=419430400 The machine is a dual AMD Opteron w/ 2G memory. I have another identical machine that this also occurs on but less frequently as it does not have as high of a load. I have tested every piece of hardware as best as I can, especially the memory. I have been fighting this issue for months now. I am about to give up and go back to FreeBSD 4.x. I am looking for suggestions now. 1. What does this panic really mean? 2. Any ideas for a work around? (kernel options, patches, anything) 3. Would a bug report actually get anywhere? (bad experiences in the past, 93809) --Apple-Mail-2--575486184--
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