Hi, ever since my upgrade to Kernel 4.0 I have randomly processes getting stuck in D state for minutes and hours, the backtrace is: [763300.065765] ffff880492d9fa88 ffffffff81e15480 ffff880493aa6590 ffff8807f75cc5d0 [763300.065766] ffff880492d9ffd8 ffff88081dfac1d8 0000000000000082 ffffffffa0682d00 [763300.065768] ffff880492d9fdf8 ffff880492d9faa8 ffffffff8162c057 ffff8807eb09dde8 [763300.065769] Call Trace: [763300.065776] [<ffffffff8162c057>] schedule+0x37/0x90 [763300.065787] [<ffffffffa0682d31>] rpc_wait_bit_killable+0x31/0x80 [sunrpc] [763300.065798] [<ffffffff8162c42d>] __wait_on_bit+0x5d/0x90 [763300.065800] [<ffffffff8162c4ce>] out_of_line_wait_on_bit+0x6e/0x80 [763300.065805] [<ffffffffa0683e17>] __rpc_execute+0x137/0x410 [sunrpc] [763300.065810] [<ffffffffa067b12d>] rpc_run_task+0x6d/0x90 [sunrpc] [763300.065814] [<ffffffffa067b194>] rpc_call_sync+0x44/0xa0 [sunrpc] [763300.065817] [<ffffffffa0759596>] nfs3_rpc_wrapper.constprop.11+0x66/0xa0 [nfsv3] [763300.065820] [<ffffffffa075a118>] nfs3_proc_getattr+0x48/0x90 [nfsv3] [763300.065826] [<ffffffffa071b9b5>] __nfs_revalidate_inode+0xb5/0x2e0 [nfs] [763300.065831] [<ffffffffa0713b4b>] nfs_weak_revalidate+0x4b/0xf0 [nfs] [763300.065835] [<ffffffff811d88aa>] complete_walk+0x8a/0xe0 [763300.065838] [<ffffffff811dd0de>] path_lookupat+0x2e/0x6e0 [763300.065840] [<ffffffff811dd7b6>] filename_lookup+0x26/0xc0 [763300.065842] [<ffffffff811df4a8>] user_path_at_empty+0x48/0x80 [763300.065844] [<ffffffff811d38a6>] vfs_fstatat+0x46/0x90 [763300.065847] [<ffffffff811d3d8f>] SYSC_newlstat+0x1f/0x40 [763300.065849] [<ffffffff8162fc8d>] system_call_fastpath+0x16/0x1b [763300.065860] [<00007ff16419afe5>] 0x7ff16419afe5 the "funny" thing is that when I do lsof -p <pid>, the process continues as if nothing happened. Anyone got an idea how to debug this further? is this a known problem? Thanks, Dirk -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org