I have been suffering from this problem intermittently at least since 2.6.15. Just rebooted 2.6.17.9 and it has happened again. Symptoms: After a reboot I get multiple cron processes stuck in fork. Loadavg rises. Sometimes the stuck processes clear in about 12 hours, but often the system crashes and reboots. This time I have unwind info compiled in and have dumped the active task list (see below). System is Acer aspire 1350, debian testing. Config attached. Let me know if you need any more info. Thanks, Mark ps -lfC cron F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD 5 S root 3670 1 0 76 0 - 1569 - 10:00 ? 00:00:00 /usr/sbin/cron 1 D root 9780 3670 0 77 0 - 1606 fork 11:08 ? 00:00:00 /USR/SBIN/CRON 5 S root 9781 9780 0 75 0 - 1606 - 11:08 ? 00:00:00 /USR/SBIN/CRON 1 D root 9842 3670 0 78 0 - 1606 fork 11:09 ? 00:00:00 /USR/SBIN/CRON 5 S root 9843 9842 0 75 0 - 1606 - 11:09 ? 00:00:00 /USR/SBIN/CRON 1 D root 10209 3670 0 77 0 - 1606 fork 11:15 ? 00:00:00 /USR/SBIN/CRON 1 D root 10210 3670 0 77 0 - 1606 fork 11:15 ? 00:00:00 /USR/SBIN/CRON 5 S root 10211 10209 0 75 0 - 1606 - 11:15 ? 00:00:00 /USR/SBIN/CRON 5 S root 10212 10210 0 75 0 - 1606 - 11:15 ? 00:00:00 /USR/SBIN/CRON 1 D root 10337 3670 0 78 0 - 1606 fork 11:17 ? 00:00:00 /USR/SBIN/CRON 5 S root 10338 10337 0 75 0 - 1606 - 11:17 ? 00:00:00 /USR/SBIN/CRON 1 D root 10710 3670 0 78 0 - 1606 fork 11:23 ? 00:00:00 /USR/SBIN/CRON 5 S root 10711 10710 0 75 0 - 1606 - 11:23 ? 00:00:00 /USR/SBIN/CRON 1 D root 11137 3670 0 77 0 - 1606 fork 11:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 11138 3670 0 77 0 - 1606 fork 11:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 11139 3670 0 77 0 - 1606 fork 11:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 11140 11137 0 75 0 - 1606 - 11:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 11141 11138 0 75 0 - 1606 - 11:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 11142 11139 0 75 0 - 1606 - 11:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 11447 3670 0 78 0 - 1606 fork 11:35 ? 00:00:00 /USR/SBIN/CRON 5 S root 11448 11447 0 75 0 - 1606 - 11:35 ? 00:00:00 /USR/SBIN/CRON 1 D root 11633 3670 0 77 0 - 1606 fork 11:38 ? 00:00:00 /USR/SBIN/CRON 5 S root 11634 11633 0 75 0 - 1606 - 11:38 ? 00:00:00 /USR/SBIN/CRON 1 D root 11695 3670 0 77 0 - 1606 fork 11:39 ? 00:00:00 /USR/SBIN/CRON 5 S root 11696 11695 0 75 0 - 1606 - 11:39 ? 00:00:00 /USR/SBIN/CRON 1 D root 12066 3670 0 78 0 - 1606 fork 11:45 ? 00:00:00 /USR/SBIN/CRON 1 D root 12067 3670 0 77 0 - 1606 fork 11:45 ? 00:00:00 /USR/SBIN/CRON 5 S root 12068 12067 0 75 0 - 1606 - 11:45 ? 00:00:00 /USR/SBIN/CRON 5 S root 12069 12066 0 75 0 - 1606 - 11:45 ? 00:00:00 /USR/SBIN/CRON 1 D root 12558 3670 0 78 0 - 1606 fork 11:53 ? 00:00:00 /USR/SBIN/CRON 5 S root 12559 12558 0 75 0 - 1606 - 11:53 ? 00:00:00 /USR/SBIN/CRON 1 D root 13017 3670 0 77 0 - 1606 fork 12:00 ? 00:00:00 /USR/SBIN/CRON 1 D root 13018 3670 0 77 0 - 1606 fork 12:00 ? 00:00:00 /USR/SBIN/CRON 1 D root 13019 3670 0 77 0 - 1606 fork 12:00 ? 00:00:00 /USR/SBIN/CRON 5 S root 13020 13018 0 75 0 - 1606 - 12:00 ? 00:00:00 /USR/SBIN/CRON 5 S root 13021 13019 0 75 0 - 1606 - 12:00 ? 00:00:00 /USR/SBIN/CRON 5 S root 13022 13017 0 75 0 - 1606 - 12:00 ? 00:00:00 /USR/SBIN/CRON 1 D root 13329 3670 0 77 0 - 1606 fork 12:05 ? 00:00:00 /USR/SBIN/CRON 1 D root 13330 3670 0 77 0 - 1606 fork 12:05 ? 00:00:00 /USR/SBIN/CRON 5 S root 13331 13330 0 75 0 - 1606 - 12:05 ? 00:00:00 /USR/SBIN/CRON 5 S root 13332 13329 0 75 0 - 1606 - 12:05 ? 00:00:00 /USR/SBIN/CRON 1 D root 13517 3670 0 78 0 - 1606 fork 12:08 ? 00:00:00 /USR/SBIN/CRON 5 S root 13518 13517 0 75 0 - 1606 - 12:08 ? 00:00:00 /USR/SBIN/CRON 1 D root 13582 3670 0 78 0 - 1606 fork 12:09 ? 00:00:00 /USR/SBIN/CRON 5 S root 13583 13582 0 75 0 - 1606 - 12:09 ? 00:00:00 /USR/SBIN/CRON 1 D root 13951 3670 0 78 0 - 1606 fork 12:15 ? 00:00:00 /USR/SBIN/CRON 1 D root 13952 3670 0 77 0 - 1606 fork 12:15 ? 00:00:00 /USR/SBIN/CRON 5 S root 13953 13952 0 76 0 - 1606 - 12:15 ? 00:00:00 /USR/SBIN/CRON 5 S root 13954 13951 0 76 0 - 1606 - 12:15 ? 00:00:00 /USR/SBIN/CRON 1 D root 14078 3670 0 77 0 - 1606 fork 12:17 ? 00:00:00 /USR/SBIN/CRON 5 S root 14079 14078 0 76 0 - 1606 - 12:17 ? 00:00:00 /USR/SBIN/CRON 1 D root 14446 3670 0 78 0 - 1606 fork 12:23 ? 00:00:00 /USR/SBIN/CRON 5 S root 14447 14446 0 76 0 - 1606 - 12:23 ? 00:00:00 /USR/SBIN/CRON 1 D root 14874 3670 0 77 0 - 1606 fork 12:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 14875 3670 0 77 0 - 1606 fork 12:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 14876 3670 0 77 0 - 1606 fork 12:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 14877 14875 0 76 0 - 1606 - 12:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 14878 14874 0 76 0 - 1606 - 12:30 ? 00:00:00 /USR/SBIN/CRON 5 S root 14879 14876 0 76 0 - 1606 - 12:30 ? 00:00:00 /USR/SBIN/CRON 1 D root 15212 3670 0 77 0 - 1606 fork 12:35 ? 00:00:00 /USR/SBIN/CRON 5 S root 15213 15212 0 76 0 - 1606 - 12:35 ? 00:00:00 /USR/SBIN/CRON 1 D root 15452 3670 0 78 0 - 1606 fork 12:38 ? 00:00:00 /USR/SBIN/CRON 5 S root 15453 15452 0 76 0 - 1606 - 12:38 ? 00:00:00 /USR/SBIN/CRON 1 D root 15521 3670 0 78 0 - 1606 fork 12:39 ? 00:00:00 /USR/SBIN/CRON 5 S root 15522 15521 0 76 0 - 1606 - 12:39 ? 00:00:00 /USR/SBIN/CRON 1 D root 15598 3670 0 78 0 - 1606 fork 12:40 ? 00:00:00 /USR/SBIN/CRON 5 S root 15599 15598 0 76 0 - 1606 - 12:40 ? 00:00:00 /USR/SBIN/CRON 1 D root 15943 3670 0 78 0 - 1606 fork 12:45 ? 00:00:00 /USR/SBIN/CRON 1 D root 15944 3670 0 79 0 - 1606 fork 12:45 ? 00:00:00 /USR/SBIN/CRON 5 S root 15945 15944 0 80 0 - 1606 - 12:45 ? 00:00:00 /USR/SBIN/CRON 5 S root 15946 15943 0 79 0 - 1606 - 12:45 ? 00:00:00 /USR/SBIN/CRON sysrq t dmesg -s 100000 023ec7f> tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron D C816DF24 0 13582 3670 13583 13951 13517 (NOTLB) c816df14 00000282 c4812050 c816df24 c0115061 c0132e0b 00000002 c4812160 00ea6274 c4812050 00000000 d4335500 000f4913 c974e030 c974e138 c816df88 c816c000 c816df50 c816df68 c025f319 00000000 c974e030 c0113afe 00000000 Call Trace: alloc_files+0x12/0x6d filemap_nopage+0x17f/0x2cf wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron S C0DA3B48 0 13583 13582 (NOTLB) c0da3b60 00000001 c71ea098 c0da3b48 cba83050 58db05c0 000f4a39 007a1200 00000000 c70120d0 00000000 58db05c0 000f4a39 c4812050 c4812158 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb sk_reset_timer+0xc/0x15 tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron D C8ACBF24 0 13951 3670 13954 13952 13582 (NOTLB) c8acbf14 00000282 c5519a90 c8acbf24 c0115061 cbeedd70 cbeedd60 c5519ba0 00f55582 c5519a90 00000000 a804b600 000f4967 c8824a70 c8824b78 c8acbf88 c8aca000 c8acbf50 c8acbf68 c025f319 00000000 c8824a70 c0113afe 00000000 Call Trace: alloc_files+0x12/0x6d wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron D 00000010 0 13952 3670 13953 14078 13951 (NOTLB) c1cf1f14 c1cf0000 c0147d05 00000010 cbeedd20 00000001 000000d0 00000000 00000000 c8824570 00000000 a6e2cb40 000f4967 c8824070 c8824178 c1cf1f88 c1cf0000 c1cf1f50 c1cf1f68 c025f319 00000000 c8824070 c0113afe 00000000 Call Trace: cache_grow+0x101/0x15a wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron S C8A99B48 0 13953 13952 (NOTLB) c8a99b60 00000001 c71ea098 c8a99b48 c5519a90 55fe99c0 000f4a39 00000000 00000000 cb5e7ad0 00000000 58db05c0 000f4a39 c8824570 c8824678 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 dev_queue_xmit+0x1db/0x1e2 tcp_ack_saw_tstamp+0x14/0x43 tcp_clean_rtx_queue+0x2d2/0x3eb tcp_cong_avoid+0x15/0x25 tcp_ack+0x1cc/0x257 tcp_rcv_established+0x125/0x599 tcp_rcv_established+0x12d/0x599 tcp_v4_rcv+0x4fb/0x78b __wake_up_common+0x32/0x54 ip_local_deliver+0x192/0x19d ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron S C11C2AB0 0 13954 13951 (NOTLB) c87a5b60 c03b13e0 00000000 c11c2ab0 c5519590 58db05c0 000f4a39 007a1200 00000000 c8824570 00000000 58db05c0 000f4a39 c5519a90 c5519b98 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb buffered_rmqueue+0x12b/0x15a get_page_from_freelist+0x7a/0x93 __alloc_pages+0x47/0x260 sk_reset_timer+0xc/0x15 tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron D C1F75EEC 0 14078 3670 14079 14446 13952 (NOTLB) c1f75f14 ffffffff c5519090 c1f75eec c025f225 c7b00778 00000000 c7b006f4 c7b006c8 c5519590 00000000 9a7bae00 000f4983 c5519090 c5519198 c1f75f88 c1f74000 c1f75f50 c1f75f68 c025f319 00000000 c5519090 c0113afe 00000000 Call Trace: preempt_schedule+0x3e/0x54 wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron S C2067B48 0 14079 14078 (NOTLB) c2067b60 00000001 c71ea098 c2067b48 c4e43ab0 58db05c0 000f4a39 007a1200 00000000 c5519a90 00000000 58db05c0 000f4a39 c5519590 c5519698 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 dev_queue_xmit+0x1db/0x1e2 tcp_ack_saw_tstamp+0x14/0x43 tcp_clean_rtx_queue+0x2d2/0x3eb tcp_cong_avoid+0x15/0x25 tcp_ack+0x1cc/0x257 tcp_rcv_established+0x125/0x599 tcp_rcv_established+0x12d/0x599 tcp_v4_rcv+0x4fb/0x78b __wake_up_common+0x32/0x54 ip_local_deliver+0x192/0x19d ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron D C6CC3F24 0 14446 3670 14447 14874 14078 (NOTLB) c6cc3f14 00000282 c4e43ab0 c6cc3f24 c0115061 c0132e0b 00000002 c4e43bc0 0103f996 c4e43ab0 00000000 6e8a1800 000f49d7 c4e430b0 c4e431b8 c6cc3f88 c6cc2000 c6cc3f50 c6cc3f68 c025f319 00000000 c4e430b0 c0113afe 00000000 Call Trace: alloc_files+0x12/0x6d filemap_nopage+0x17f/0x2cf wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron S C8A95B48 0 14447 14446 (NOTLB) c8a95b60 00000001 c71ea098 c8a95b48 c08d8a90 58db05c0 000f4a39 007a1200 00000000 c5519590 00000000 58db05c0 000f4a39 c4e43ab0 c4e43bb8 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb sk_reset_timer+0xc/0x15 tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron D 00000020 0 14874 3670 14878 14875 14446 (NOTLB) c1ed7f14 c7b004b4 c7b00488 00000020 0000007b 0000007b ffffff05 c01151f1 00000060 c08d3ad0 0001e848 55660340 000f4a39 c1932550 c1932658 c1ed7f88 c1ed6000 c1ed7f50 c1ed7f68 c025f319 00000000 c1932550 c0113afe 00000000 Call Trace: dup_fd+0x135/0x226 wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron D C8039F24 0 14875 3670 14877 14876 14874 (NOTLB) c8039f14 00000282 c08d3ad0 c8039f24 c0115061 cbeed4b0 cbeed4a0 c08d3be0 0110c56a c1932550 00000000 5556c100 000f4a39 c4e435b0 c4e436b8 c8039f88 c8038000 c8039f50 c8039f68 c025f319 00000000 c4e435b0 c0113afe 00000000 Call Trace: alloc_files+0x12/0x6d wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron D 00000010 0 14876 3670 14879 14875 (NOTLB) ca09df14 ca09c000 c0147d05 00000010 cbeedd20 55a30c40 000f4a39 000f4240 00000000 c08d35d0 00000000 55a30c40 000f4a39 c1932a50 c1932b58 ca09df88 ca09c000 ca09df50 ca09df68 c025f319 00000000 c1932a50 c0113afe 00000000 Call Trace: cache_grow+0x101/0x15a wait_for_completion+0x80/0xc3 default_wake_function+0x0/0xc default_wake_function+0x0/0xc do_fork+0x13e/0x16e sys_vfork+0x18/0x1c syscall_call+0x7/0xb cron S C05AFB48 0 14877 14875 (NOTLB) c05afb60 00000001 c71ea098 c05afb48 c08d35d0 00000000 00000000 c9fbbd00 00000001 c883f530 00000000 5945d580 000f4a39 c08d3ad0 c08d3bd8 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb sk_reset_timer+0xc/0x15 tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron S C11C2AB0 0 14878 14874 (NOTLB) c051bb60 c03b13e0 00000000 c11c2ab0 c08d30d0 5945d580 000f4a39 00e4e1c0 00000000 c08d3ad0 00000000 5945d580 000f4a39 c08d35d0 c08d36d8 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb buffered_rmqueue+0x12b/0x15a get_page_from_freelist+0x7a/0x93 __alloc_pages+0x47/0x260 tcp_transmit_skb+0x37e/0x39c tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 touch_atime+0x65/0xa6 do_generic_mapping_read+0x3f7/0x3ff core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb cron S C11C2AB0 0 14879 14876 (NOTLB) c04b7b60 c03b13e0 00000000 c11c2ab0 cb5e7ad0 5945d580 000f4a39 00e4e1c0 00000000 c08d35d0 00000000 5945d580 000f4a39 c08d30d0 c08d31d8 7fffffff 00000000 00000000 00000040 c025f968 00000145 c023dc12 00000000 0000c4b0 Call Trace: schedule_timeout+0x13/0x8d tcp_poll+0x16/0x11f do_select+0x2be/0x307 __pollwait+0x0/0x44 default_wake_function+0x0/0xc ip_rcv+0x392/0x3c1 schedule+0x489/0x531 preempt_schedule+0x3e/0x54 dev_queue_xmit+0x1db/0x1e2 ip_output+0x19f/0x1d5 ip_queue_xmit+0x383/0x3bb __alloc_pages+0x47/0x260 do_anonymous_page+0xb8/0x139 __handle_mm_fault+0xa5/0x183 do_page_fault+0x239/0x589 sk_reset_timer+0xc/0x15 tcp_write_xmit+0x1e1/0x20a __tcp_push_pending_frames+0x1e/0x6d tcp_sendmsg+0x8f5/0x996 __wake_up_common+0x32/0x54 core_sys_select+0x246/0x30a sock_aio_write+0x53/0x61 preempt_schedule_irq+0x47/0x5e do_sync_write+0xbb/0xf9 autoremove_wake_function+0x0/0x2d sys_select+0x9b/0x15c vfs_write+0xe5/0x11e syscall_call+0x7/0xb