Le mercredi 30 mars 2011 Ã 14:17 +0100, Maxin John a Ãcrit : > Hi, > > I have compiled the kernel with below given modification in .config > > CONFIG_CMDLINE="uhash_entries=256" > > After booting with the new kernel, the "kmemleak" no longer complains > about the "udp_table_init". > However it do report another possible leak :) > > debian-mips:~# cat /sys/kernel/debug/kmemleak > unreferenced object 0x8f085000 (size 4096): > comm "swapper", pid 1, jiffies 4294937670 (age 1043.280s) > hex dump (first 32 bytes): > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<801ac7a8>] __kmalloc+0x130/0x180 > [<80532500>] flow_cache_cpu_prepare+0x50/0xa8 > [<8052378c>] flow_cache_init_global+0x90/0x138 > [<80100584>] do_one_initcall+0x174/0x1e0 > [<8050c348>] kernel_init+0xe4/0x174 > [<80103d4c>] kernel_thread_helper+0x10/0x18 > debian-mips:~# Hmm, then MIPS kmemleak port might have a problem with percpu data ? fcp->hash_table = kzalloc_node(sz, GFP_KERNEL, cpu_to_node(cpu)); fcp is a per cpu "struct flow_cache_percpu" > I completely agree with Daniel. Shall we move on and integrate the > kmemleak support for MIPS ?
