Rob Bos <rbos@xxxxxx> wrote: > Jun 30 11:44:42 lib-hf3 kernel: BUG: Bad page state in process aria2c pfn:6b5b8 > Jun 30 11:44:42 lib-hf3 kernel: page:ffffea000177c040 flags:0020000000001000 count:0 mapcount:0 mapping:(null) index:0 (Tainted: G --------------- T) > Jun 30 11:44:42 lib-hf3 kernel: Pid: 2121, comm: aria2c Tainted: G --------------- T 2.6.32-373.el6.rbos.2.x86_64 #1 > Jun 30 11:44:42 lib-hf3 kernel: Call Trace: > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff811291d7>] ? bad_page+0x107/0x160 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff8112c959>] ? free_hot_cold_page+0x1c9/0x220 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff81175a28>] ? mem_cgroup_cache_charge+0xb8/0xc0 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff8112ca6f>] ? free_hot_page+0x2f/0x60 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff8112f69e>] ? __put_single_page+0x1e/0x30 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffff8112f825>] ? put_page+0x25/0x40 > Jun 30 11:44:42 lib-hf3 kernel: [<ffffffffa0240cf8>] ? cifs_readpages+0x2a8/0x6e0 [cifs] I think I have a rough idea as to the problem that causes this is now. The only problem is I don't know exactly which bit of cifs_readpages() is causing it. Could you do me a favour and load your cifs.ko into gdb and then do: i line *((unsigned long)cifs_readpages + 0x2a8) That should print the number of the line with the relevant call to put_page(). Thanks, David -- Linux-cachefs mailing list Linux-cachefs@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cachefs
