Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265606AbTFNDtq (ORCPT ); Fri, 13 Jun 2003 23:49:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265607AbTFNDtq (ORCPT ); Fri, 13 Jun 2003 23:49:46 -0400 Received: from iucha.net ([209.98.146.184]:353 "EHLO mail.iucha.net") by vger.kernel.org with ESMTP id S265606AbTFNDtc (ORCPT ); Fri, 13 Jun 2003 23:49:32 -0400 Date: Fri, 13 Jun 2003 23:03:19 -0500 To: Trond Myklebust Cc: Linux Kernel Subject: nfs/rpc badness with 2.5.70-bk18 Message-ID: <20030614040319.GS25303@iucha.net> Mail-Followup-To: Trond Myklebust , Linux Kernel Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="ixDgnS8AC6zwmyK0" Content-Disposition: inline X-message-flag: Microsoft: Where do you want to go today? Nevermind, you are coming with us! X-gpg-key: http://iucha.net/florin_iucha.gpg X-gpg-fingerprint: 41A9 2BDE 8E11 F1C5 87A6 03EE 34B3 E075 3B90 DFE4 User-Agent: Mutt/1.5.4i From: florin@iucha.net (Florin Iucha) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 25854 Lines: 729 --ixDgnS8AC6zwmyK0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hello, With 2.5.70-bk18 I get freezes. After the freeze this was in the serial console: Unable to handle kernel paging request at virtual address 00100104 printing eip: c0166951 *pde =3D 00000000 Oops: 0002 [#1] CPU: 0 EIP: 0060:[] Not tainted EFLAGS: 00010286 EIP is at dput+0x91/0x200 eax: 00100100 ebx: e7c52d40 ecx: e7c52d54 edx: 00200200 esi: e4266000 edi: e7c52d54 ebp: e7c52e1c esp: e4267ea4 ds: 007b es: 007b ss: 0068 Process umount (pid: 757, threadinfo=3De4266000 task=3De70ab280) Stack: e7c52d40 c0454c50 e7c52d40 00000000 e7c52d54 c03450bc e7c52d40 e7c52= d40=20 e7c53528 e7c534c0 e7c52db0 e7c52e00 e7c52e00 e7c539a8 e7c53940 c0345= 6af=20 e7c52e00 e7ea3180 e7ea3180 effe49c0 ea4c1a59 00000005 10ee271a 00000= 010=20 Call Trace: [] rpc_depopulate+0xac/0x150 [] rpc_rmdir+0x7f/0xc0 [] rpc_destroy_client+0x5f/0x90 [] nfs_put_super+0x1f/0x50 [] generic_shutdown_super+0x176/0x190 [] kill_anon_super+0x17/0x50 [] nfs_kill_super+0x19/0x30 [] deactivate_super+0x5e/0xc0 [] sys_umount+0x3f/0x90 [] sys_oldumount+0x17/0x20 [] syscall_call+0x7/0xb Code: 89 50 04 89 02 c7 41 04 00 02 20 00 c7 43 14 00 01 10 00 ff=20 <6>note: umount[757] exited with preempt_count 3 bad: scheduling while atomic! Call Trace: [] schedule+0x39b/0x3a0 [] unmap_page_range+0x43/0x70 [] unmap_vmas+0x1b5/0x210 [] exit_mmap+0x7b/0x190 [] mmput+0x64/0xc0 [] do_exit+0x105/0x410 [] do_page_fault+0x0/0x451 [] do_divide_error+0x0/0x100 [] do_page_fault+0x12c/0x451 [] update_process_times+0x46/0x60 [] run_timer_softirq+0x10a/0x1b0 [] do_timer+0xdf/0xf0 [] rcu_process_callbacks+0x83/0x100 [] tasklet_action+0x46/0x70 [] do_IRQ+0xfc/0x130 [] do_page_fault+0x0/0x451 [] error_code+0x2d/0x38 [] dput+0x91/0x200 [] rpc_depopulate+0xac/0x150 [] rpc_rmdir+0x7f/0xc0 [] rpc_destroy_client+0x5f/0x90 [] nfs_put_super+0x1f/0x50 [] generic_shutdown_super+0x176/0x190 [] kill_anon_super+0x17/0x50 [] nfs_kill_super+0x19/0x30 [] deactivate_super+0x5e/0xc0 [] sys_umount+0x3f/0x90 [] sys_oldumount+0x17/0x20 [] syscall_call+0x7/0xb agpgart: Found an AGP 2.0 compliant device at 00:00.0. agpgart: Putting AGP V2 device at 00:00.0 into 2x mode agpgart: Putting AGP V2 device at 01:00.0 into 2x mode [drm] Loading R200 Microcode agpgart: Found an AGP 2.0 compliant device at 00:00.0. agpgart: Putting AGP V2 device at 00:00.0 into 2x mode agpgart: Putting AGP V2 device at 01:00.0 into 2x mode [drm] Loading R200 Microcode !!! Now the second freeze, I pressed Ctrl-Alt-Del. Still frozen, I dumped the tasks with SysRq-T. Here is the serial console dump: SysRq : Emergency Sync SysRq : Emergency Remount R/O SysRq : Show State free sibling task PC stack pid father child younger older init S EF98F5C0 4294956888 1 0 2 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] __get_free_pages+0x1a/0x50 [] __pollwait+0x85/0xd0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] syscall_call+0x7/0xb ksoftirqd/0 S 00000246 4294951996 2 1 3 (L-TLB) Call Trace: [] tasklet_action+0x46/0x70 [] ksoftirqd+0xaf/0xc0 [] ksoftirqd+0x0/0xc0 [] kernel_thread_helper+0x5/0x18 events/0 S C03C9E60 4294945064 3 1 4 2 (L-TLB) Call Trace: [] worker_thread+0x29e/0x2d0 [] console_callback+0x0/0xc0 [] default_wake_function+0x0/0x30 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] worker_thread+0x0/0x2d0 [] kernel_thread_helper+0x5/0x18 khubd S EFD21F9E 4292416496 4 1 5 3 (L-TLB) Call Trace: [] hub_thread+0xce/0xf0 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] hub_thread+0x0/0xf0 [] kernel_thread_helper+0x5/0x18 pdflush D 00000000 4292213248 5 1 6 4 (L-TLB) Call Trace: [] vfs_mntupdate+0x34/0x40 [] rwsem_down_read_failed+0x8d/0x130 [] .text.lock.super+0xef/0x197 [] __pdflush+0xd2/0x1d0 [] pdflush+0x0/0x20 [] pdflush+0xf/0x20 [] do_emergency_remount+0x0/0xd0 [] kernel_thread_helper+0x0/0x18 [] kernel_thread_helper+0x5/0x18 pdflush D 00000000 4294951360 6 1 7 5 (L-TLB) Call Trace: [] rwsem_down_read_failed+0x8d/0x130 [] .text.lock.fs_writeback+0x7/0x42 [] sync_inodes+0x15/0xa0 [] do_sync+0x23/0x80 [] __pdflush+0xd2/0x1d0 [] pdflush+0x0/0x20 [] pdflush+0xf/0x20 [] do_sync+0x0/0x80 [] kernel_thread_helper+0x0/0x18 [] kernel_thread_helper+0x5/0x18 kswapd0 S EFCE8000 4294944704 7 1 8 6 (L-TLB) Call Trace: [] daemonize+0xd2/0xe0 [] kswapd+0xeb/0x130 [] preempt_schedule+0x2a/0x50 [] autoremove_wake_function+0x0/0x50 [] ret_from_fork+0x6/0x14 [] autoremove_wake_function+0x0/0x50 [] kswapd+0x0/0x130 [] kernel_thread_helper+0x5/0x18 aio/0 S EFCE6000 4294938048 8 1 9 7 (L-TLB) Call Trace: [] do_sigaction+0x185/0x260 [] worker_thread+0x29e/0x2d0 [] default_wake_function+0x0/0x30 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] worker_thread+0x0/0x2d0 [] kernel_thread_helper+0x5/0x18 xfslogd/0 S EF9B48D8 4294931392 9 1 10 8 (L-TLB) Call Trace: [] worker_thread+0x29e/0x2d0 [] pagebuf_iodone_work+0x0/0x60 [] default_wake_function+0x0/0x30 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] worker_thread+0x0/0x2d0 [] kernel_thread_helper+0x5/0x18 xfsdatad/0 S EFCE2000 4294924736 10 1 11 9 (L-TLB) Call Trace: [] do_sigaction+0x185/0x260 [] worker_thread+0x29e/0x2d0 [] default_wake_function+0x0/0x30 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] worker_thread+0x0/0x2d0 [] kernel_thread_helper+0x5/0x18 pagebufd S 00000000 4294951280 11 1 12 10 (L-TLB) Call Trace: [] default_wake_function+0x0/0x30 [] interruptible_sleep_on+0x4f/0x90 [] default_wake_function+0x0/0x30 [] pagebuf_daemon+0x21e/0x240 [] ret_from_fork+0x6/0x14 [] pagebuf_daemon_wakeup+0x0/0x30 [] pagebuf_daemon+0x0/0x240 [] kernel_thread_helper+0x5/0x18 scsi_eh_0 S 00000046 4294543216 12 1 13 11 (L-TLB) Call Trace: [] __down_interruptible+0xa7/0x130 [] default_wake_function+0x0/0x30 [] __down_failed_interruptible+0x7/0xc [] .text.lock.scsi_error+0x41/0x77 [] scsi_error_handler+0x0/0x1c0 [] kernel_thread_helper+0x5/0x18 kseriod S EFC38000 4294408832 13 1 14 12 (L-TLB) Call Trace: [] daemonize+0xd2/0xe0 [] serio_thread+0x137/0x140 [] ret_from_fork+0x6/0x14 [] default_wake_function+0x0/0x30 [] serio_thread+0x0/0x140 [] kernel_thread_helper+0x5/0x18 xfs_syncd S EFC51E80 4291605364 14 1 75 13 (L-TLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 knodemgrd_0 S EEFD94CC 4287445296 75 1 125 14 (L-TLB) Call Trace: [] sysfs_symlink+0x69/0x80 [] __down_interruptible+0xa7/0x130 [] default_wake_function+0x0/0x30 [] __down_failed_interruptible+0x7/0xc [] .text.lock.nodemgr+0x37/0xa9 [ieee1394] [] nodemgr_host_thread+0x0/0x170 [ieee1394] [] kernel_thread_helper+0x5/0x18 usb-storage S EFC71A8C 4292626160 125 1 126 75 (L-TLB) Call Trace: [] __wake_up_locked+0x22/0x30 [] __down_interruptible+0xa7/0x130 [] default_wake_function+0x0/0x30 [] __down_failed_interruptible+0x7/0xc [] .text.lock.usb+0x5/0x5a [usb_storage] [] ret_from_fork+0x6/0x14 [] usb_stor_control_thread+0x0/0x250 [usb_storage] [] usb_stor_control_thread+0x0/0x250 [usb_storage] [] kernel_thread_helper+0x5/0x18 scsi_eh_1 S 00000046 4292619504 126 1 167 125 (L-TLB) Call Trace: [] __down_interruptible+0xa7/0x130 [] default_wake_function+0x0/0x30 [] __down_failed_interruptible+0x7/0xc [] .text.lock.scsi_error+0x41/0x77 [] scsi_error_handler+0x0/0x1c0 [] kernel_thread_helper+0x5/0x18 xfs_syncd S EF64ACC0 4283936048 167 1 168 126 (L-TLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 xfs_syncd S EF64A2C0 4291649776 168 1 169 167 (L-TLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 xfs_syncd S 00000001 4291580656 169 1 170 168 (L-TLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 xfs_syncd S 00000001 4291381440 170 1 171 169 (L-TLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 xfs_syncd S EF9B4B80 4294951088 171 1 172 170 (L-TLB) Call Trace: [] xfs_getsb+0x2e/0x50 [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 xfs_syncd S EF64A0C0 4294948480 172 1 218 171 (L-TLB) Call Trace: [] xfs_getsb+0x2e/0x50 [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] syncd+0x45/0x90 [] syncd+0x0/0x90 [] kernel_thread_helper+0x5/0x18 dhclient S C03982E4 9646768 218 1 222 172 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] syscall_call+0x7/0xb portmap S 00000246 4293299376 222 1 298 218 (NOTLB) Call Trace: [] tcp_poll+0x34/0x160 [] schedule_timeout+0xb1/0xc0 [] sock_poll+0x29/0x40 [] do_pollfd+0x4f/0x90 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] __pollwait+0x0/0xd0 [] sys_close+0x61/0xa0 [] syscall_call+0x7/0xb syslog-ng R E7C644D8 4292894832 298 1 302 222 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] schedule_timeout+0x5f/0xc0 [] sock_poll+0x29/0x40 [] process_timeout+0x0/0x10 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] __pollwait+0x0/0xd0 [] syscall_call+0x7/0xb rpc.statd S C03982E4 4290803888 302 1 309 298 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] tcp_poll+0x34/0x160 [] sock_poll+0x29/0x40 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] sys_close+0x61/0xa0 [] syscall_call+0x7/0xb acpid S 00000000 4291995248 309 1 389 302 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] sock_poll+0x29/0x40 [] do_pollfd+0x4f/0x90 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] __pollwait+0x0/0xd0 [] syscall_call+0x7/0xb automount S BFFFFB94 4276127536 389 1 755 393 309 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] schedule_timeout+0xb1/0xc0 [] pipe_poll+0x34/0x80 [] do_pollfd+0x4f/0x90 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] __pollwait+0x0/0xd0 [] syscall_call+0x7/0xb gpm S 00000000 4276515872 393 1 398 389 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] vfs_write+0xb8/0x130 [] syscall_call+0x7/0xb inetd S 40049000 4289604720 398 1 404 393 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] schedule_timeout+0xb1/0xc0 [] tcp_poll+0x34/0x160 [] sock_poll+0x29/0x40 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] syscall_call+0x7/0xb lpd S C03982E4 4294681072 404 1 492 398 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] tcp_poll+0x34/0x160 [] sock_poll+0x29/0x40 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] sys_socketcall+0xd7/0x2a0 [] sys_munmap+0x44/0x70 [] syscall_call+0x7/0xb master S EE4A1ECC 4293029492 492 1 496 498 404 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] syscall_call+0x7/0xb nqmgr S C03982E4 4293150704 496 492 764 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] sys_close+0x61/0xa0 [] syscall_call+0x7/0xb nmbd S C03982E4 4289410032 498 1 504 492 (NOTLB) Call Trace: [] schedule_timeout+0x5f/0xc0 [] process_timeout+0x0/0x10 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] syscall_call+0x7/0xb sshd S C03980CC 4290527680 504 1 520 498 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] schedule_timeout+0xb1/0xc0 [] tcp_poll+0x34/0x160 [] sock_poll+0x29/0x40 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] sys_munmap+0x44/0x70 [] syscall_call+0x7/0xb ntpd S C03982E4 4289865648 520 1 524 504 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] datagram_poll+0x2b/0xf0 [] sock_poll+0x29/0x40 [] do_select+0x18f/0x2d0 [] __pollwait+0x0/0xd0 [] sys_select+0x2bf/0x4c0 [] vfs_write+0xd1/0x130 [] syscall_call+0x7/0xb usbmgr S EDEF5EC0 4287314548 524 1 528 520 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] __pollwait+0x85/0xd0 [] schedule_timeout+0xb1/0xc0 [] do_pollfd+0x4f/0x90 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] usb_device_lseek+0x0/0x9d [] __pollwait+0x0/0xd0 [] syscall_call+0x7/0xb atd S EDF13F20 4289555888 528 1 532 524 (NOTLB) Call Trace: [] do_clock_nanosleep+0x199/0x2f0 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] sys_rt_sigaction+0xe0/0xf0 [] nanosleep_wake_up+0x0/0x10 [] sys_nanosleep+0x92/0xe0 [] syscall_call+0x7/0xb cron S EDE97F20 4289049536 532 1 537 528 (NOTLB) Call Trace: [] do_clock_nanosleep+0x199/0x2f0 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] sys_rt_sigaction+0xe0/0xf0 [] nanosleep_wake_up+0x0/0x10 [] sys_nanosleep+0x92/0xe0 [] syscall_call+0x7/0xb gdm S EEB1C398 4294951280 537 1 538 541 532 (NOTLB) Call Trace: [] __get_free_pages+0x1a/0x50 [] __pollwait+0x85/0xd0 [] schedule_timeout+0xb1/0xc0 [] sock_poll+0x29/0x40 [] do_pollfd+0x4f/0x90 [] do_poll+0xaa/0xd0 [] sys_poll+0x15f/0x240 [] __pollwait+0x0/0xd0 [] syscall_call+0x7/0xb gdm S EE119840 4294616944 538 537 797 (NOTLB) Call Trace: [] pipe_wait+0x7b/0xa0 [] autoremove_wake_function+0x0/0x50 [] autoremove_wake_function+0x0/0x50 [] pipe_read+0x13f/0x240 [] vfs_read+0xb8/0x130 [] sys_read+0x42/0x70 [] syscall_call+0x7/0xb getty S 00000008 4267565376 541 1 542 537 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] read_chan+0x6e1/0x860 [] write_chan+0x162/0x230 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] tty_write+0x1e4/0x300 [] read_chan+0x0/0x860 [] tty_read+0x11c/0x140 [] tty_write+0x0/0x300 [] vfs_read+0xb8/0x130 [] sys_read+0x42/0x70 [] syscall_call+0x7/0xb getty S 00000008 4289463868 542 1 543 541 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] read_chan+0x6e1/0x860 [] write_chan+0x162/0x230 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] tty_write+0x1e4/0x300 [] read_chan+0x0/0x860 [] tty_read+0x11c/0x140 [] tty_write+0x0/0x300 [] vfs_read+0xb8/0x130 [] sys_read+0x42/0x70 [] syscall_call+0x7/0xb getty S 00000008 6311284 543 1 544 542 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] read_chan+0x6e1/0x860 [] write_chan+0x162/0x230 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] tty_write+0x1e4/0x300 [] read_chan+0x0/0x860 [] tty_read+0x11c/0x140 [] tty_write+0x0/0x300 [] vfs_read+0xb8/0x130 [] sys_read+0x42/0x70 [] syscall_call+0x7/0xb getty S 00000008 74560 544 1 545 543 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] read_chan+0x6e1/0x860 [] write_chan+0x162/0x230 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] tty_write+0x1e4/0x300 [] read_chan+0x0/0x860 [] tty_read+0x11c/0x140 [] tty_write+0x0/0x300 [] vfs_read+0xb8/0x130 [] sys_read+0x42/0x70 [] syscall_call+0x7/0xb getty S 00000008 4294834544 545 1 546 544 (NOTLB) Call Trace: [] schedule_timeout+0xb1/0xc0 [] read_chan+0x6e1/0x860 [] write_chan+0x162/0x230 [] default_wake_function+0x0/0x30 [] default_wake_function+0x0/0x30 [] tty_write+0x1e4/0x300 [] read_chan+0x0/0x860 [