Messages in this thread | | | Date | Thu, 09 Sep 2004 09:05:03 +1000 | From | Nick Piggin <> | Subject | Re: 2.6.8.1 mempool subsystem sickness |
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jmerkey@comcast.net wrote: > On a system with 4GB of memory, and without > the user space patch that spilts user space > just a stock kernel, I am seeing memory > allocation failures with X server and simple > apps on a machine with a Pentium 4 > processor and 500MB of memory. > > If you load large apps and do a lot of > skb traffic, the mempool abd slab > caches start gobbling up pages > and don't seem to balance them > very well, resulting in memory > allocation failures over time if > the system stays up for a week > or more. > > I am also seeing the same behavior > on another system which has been > running for almost 30 days with > an skb based traffic regeneration > test calling and sending skb's > in kernel between two interfaces. > > The pages over time get stuck > in the slab allocator and user > space apps start to fail on alloc > requests. > > Rebooting the system clears > the problem, which slowly over time > comes back. I am seeing this with > stock kernels from kernel.org > and on kernels I have patched, > so the problem seems to be > in the base code. I have spent > the last two weeks observing > the problem to verify I can > reproduce it and it keeps > happening. > > Jeff >
Hi Jeff, Can you give us a few more details please? Post the allocation failure messages in full, and post /proc/meminfo, etc. Thanks. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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