On Friday, October 08, 2010, Oliver Neukum wrote: > Hi, > > my kernel refused to freeze tasks due to nfs. Can something be done? The issue has been there for a long time and it would require some VFS changes to really fix it. Miklos said he would look into it some time ago, but I guess he didn't have the time ... > Oct 8 12:32:24 vanamonde kernel: [ 7023.362569] PM: Syncing filesystems ... done. > Oct 8 12:32:24 vanamonde kernel: [ 7024.823085] PM: Preparing system for mem sleep > Oct 8 12:32:24 vanamonde kernel: [ 7024.823451] Freezing user space processes ... > Oct 8 12:32:24 vanamonde kernel: [ 7044.833119] Freezing of tasks failed after 20.00 seconds (1 tasks refusing to freeze, wq_busy=0): > Oct 8 12:32:24 vanamonde kernel: [ 7044.833186] cp D 0000000000000082 0 3340 3291 0x00800004 > Oct 8 12:32:24 vanamonde kernel: [ 7044.833192] ffff88004ec2daf8 0000000000000082 ffff88004ec2da48 ffffffff81378f7c > Oct 8 12:32:24 vanamonde kernel: [ 7044.833201] 00000000000137c0 ffff88004ec2dfd8 ffff88004ec2dfd8 ffff88005ec3c540 > Oct 8 12:32:24 vanamonde kernel: [ 7044.833209] ffff88004ec2dfd8 00000000000137c0 ffff88004ec2dfd8 ffff88005ec3c8e0 > Oct 8 12:32:24 vanamonde kernel: [ 7044.833218] Call Trace: > Oct 8 12:32:24 vanamonde kernel: [ 7044.833228] [<ffffffff81378f7c>] ? kernel_sendmsg+0x3c/0x50 > Oct 8 12:32:24 vanamonde kernel: [ 7044.833251] [<ffffffffa057ab20>] ? rpc_wait_bit_killable+0x0/0x40 [sunrpc] > Oct 8 12:32:24 vanamonde kernel: [ 7044.833268] [<ffffffffa057ab3f>] rpc_wait_bit_killable+0x1f/0x40 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833274] [<ffffffff8146fc67>] __wait_on_bit+0x57/0x80 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833283] [<ffffffffa05754e1>] ? xprt_release_xprt+0x81/0x90 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833292] [<ffffffffa057ab20>] ? rpc_wait_bit_killable+0x0/0x40 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833297] [<ffffffff8146fd03>] out_of_line_wait_on_bit+0x73/0x90 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833302] [<ffffffff81074b50>] ? wake_bit_function+0x0/0x40 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833311] [<ffffffffa057309a>] ? call_transmit+0x1ea/0x2b0 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833320] [<ffffffffa057b2c5>] __rpc_execute+0xe5/0x220 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833330] [<ffffffffa057ba3e>] rpc_execute+0x3e/0x50 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833338] [<ffffffffa0574320>] rpc_run_task+0xe0/0x130 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833347] [<ffffffffa057445e>] rpc_call_sync+0x3e/0x70 [sunrpc] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833359] [<ffffffffa06a5ee3>] nfs3_rpc_wrapper.clone.0+0x43/0x70 [nfs] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833369] [<ffffffffa06a71b2>] nfs3_proc_getattr+0x42/0x80 [nfs] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833378] [<ffffffffa069602a>] __nfs_revalidate_inode+0xca/0x200 [nfs] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833386] [<ffffffffa06961ad>] nfs_revalidate_mapping+0x4d/0x130 [nfs] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833394] [<ffffffffa069312f>] nfs_file_read+0x6f/0x100 [nfs] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833399] [<ffffffff81124cb2>] do_sync_read+0xd2/0x110 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833404] [<ffffffff811dbad4>] ? security_file_permission+0x74/0x90 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833409] [<ffffffff81125463>] vfs_read+0xc3/0x180 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833412] [<ffffffff8112556c>] sys_read+0x4c/0x80 > Oct 8 12:32:25 vanamonde kernel: [ 7044.833417] [<ffffffff81002f02>] system_call_fastpath+0x16/0x1b > Oct 8 12:32:25 vanamonde kernel: [ 7044.833423] > Oct 8 12:32:25 vanamonde kernel: [ 7044.833425] Restarting tasks ... done. > Rafael _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
