I have an old home gateway with 32 MB of ram running email, apache 1.3 with some static files and an rt2500 based ad-hoc mode WLAN AP with dnsmasq. Since upgrade from etch to lenny, I've seen a number of OOM situations and slow downs after a few days of uptime. Is there some perhaps known memory leak in lenny 2.6.26 kernels, perhaps in rt2500 driver?
In ad-hoc mode the rt2500 driver very chatty about so I disabled klogd for now, but AFAIK kernel uses a ring buffer which should not slow anything down. Here's a diff of /proc/meminfo after boot and when seeing a dramatic slow down after a few days of uptime. I think the anonpages difference shows a memory leak in kernel, am I correct? -Mikko ps. please cc me in replies, thanks. --- meminfo_after_boot.txt 2009-12-14 14:28:25.000000000 +0200 +++ meminfo_slow.txt 2009-12-14 14:24:01.000000000 +0200 @@ -1,28 +1,28 @@ MemTotal: 29228 kB -MemFree: 1172 kB -Buffers: 552 kB -Cached: 7488 kB -SwapCached: 404 kB -Active: 17292 kB -Inactive: 2632 kB +MemFree: 1392 kB +Buffers: 168 kB +Cached: 1744 kB +SwapCached: 736 kB +Active: 1360 kB +Inactive: 1348 kB SwapTotal: 204792 kB -SwapFree: 195728 kB +SwapFree: 164480 kB Dirty: 0 kB -Writeback: 0 kB -AnonPages: 11652 kB -Mapped: 5132 kB -Slab: 4276 kB -SReclaimable: 1108 kB -SUnreclaim: 3168 kB -PageTables: 556 kB +Writeback: 260 kB +AnonPages: 384 kB +Mapped: 928 kB +Slab: 21048 kB +SReclaimable: 952 kB +SUnreclaim: 20096 kB +PageTables: 688 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 219404 kB -Committed_AS: 33172 kB +Committed_AS: 53648 kB VmallocTotal: 1007300 kB VmallocUsed: 2500 kB -VmallocChunk: 1004556 kB +VmallocChunk: 1004624 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
