On Tue, 3 Nov 2009, Tom Judge wrote: > Tom Judge wrote: >> Weldon S Godfrey 3 wrote: >>> we are using onboard NICs on the Dell using the bce driver. We did try >>> several times to see if using an intel PCIexpress card using the em >>> driver, and we had the same symptoms. >>> >>> Could the bce driver have the same leak? >> >> The bce driver does not have a memory leak, it does however have a bug >> which causes memory fragmentation leading to denied mbuf allocation. >> >> There is a work around for this in current, you can get the patch like >> this: >> >> http://svn.freebsd.org/viewvc/base/head/ >> > That should be: > > svn diff -r 198319:198320 http://svn.freebsd.org/base/head > >> You need to put >> >> options BCE_JUMBO_HDRSPLIT >> >> In your kernel to enable the work arround. Unless I'm missing something, these seem like they may be totally different bugs. The symptoms that Weldon S Godfrey has show the number of "mbuf clusters in use" rising to the point at which the limit is reached, whereas the thread on -stable where BCE_JUMBO_HDRSPLIT is recommended has the symptom of "requests for 9k jumbo clusters denied" increasing and the mbuf clusters not being anywhere near to the maximum. So, I think there may be some confusion here. GavinReceived on Tue Nov 03 2009 - 21:21:42 UTC
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