3.0-rc1 kernel, with 7f58aabc reverted. 32-bit x86 kernel. Core 2 duo laptop w/ 2 GB RAM. X86_32_SMP=y, NO_HZ=y, PREEMPT_VOLUNTARY=y, HZ=300. Came out of a few days' suspend, browsed the net a bit, ran vlc, and discovered that switching back to the Firefox screen, it didn't refersh. I wasn't using it actively at the time of the lockup. It's been stuck since last night in the D state, and a "ps axf" also got stuck. I'm going to try rebooting with -rc3 and see if the problem recurs. Not a great bug report, but I have backtraces and I thought I'd throw it out here anyway. INFO: task firefox-bin:26283 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D f5959500 0 26283 2914 0x00000000 f34246e0 00000086 00000000 f5959500 00000000 00000000 e012df04 00000000 c14f22c0 f3424854 c14f22c0 f69dcf20 f69dcf40 f69dce60 f69dce80 f69dcea0 f69dcec0 f69dcee0 000007fb f2321b00 4b800000 4b800000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task firefox-bin:26283 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D f5959500 0 26283 2914 0x00000000 f34246e0 00000086 00000000 f5959500 00000000 00000000 e012df04 00000000 c14f22c0 f3424854 c14f22c0 f69dcf20 f69dcf40 f69dce60 f69dce80 f69dcea0 f69dcec0 f69dcee0 000007fb f2321b00 4b800000 4b800000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task firefox-bin:27872 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D d732bf58 0 27872 2914 0x00000000 f3424370 00000086 00000002 d732bf58 00000000 00000000 00000000 00000001 c14f22c0 f34244e4 c14f22c0 00000000 00000000 b147d7c0 00000000 00000002 00000001 f35bfc88 000007fb e0252b00 34cff000 34cff000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task ps:30517 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ps D d7325e80 0 30517 30515 0x00000000 f612a940 00000086 00000002 d7325e80 c13129c0 c56c4080 00000000 00000000 c14f22c0 f612aab4 c14f22c0 00000001 c1065a63 00000001 00000041 00007815 00000001 00000246 00000246 00000001 00000041 c56c4080 00000000 00000001 Call Trace: [<c1065a63>] ? zone_watermark_ok+0x2a/0x30 [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c1304997>] ? call_rwsem_down_read_failed+0x7/0xc [<c130442f>] ? down_read+0x14/0x16 [<c1075f48>] ? __access_remote_vm+0x1f/0x14d [<c107625b>] ? access_process_vm+0x3e/0x51 [<c10b6a90>] ? proc_pid_cmdline+0x58/0xc8 [<c10b75d0>] ? proc_info_read+0x44/0x8c [<c10b758c>] ? proc_single_show+0x59/0x59 [<c1088e58>] ? vfs_read+0x75/0x9b [<c1088ebf>] ? sys_read+0x41/0x64 [<c1304bdd>] ? syscall_call+0x7/0xb INFO: task firefox-bin:27872 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D d732bf58 0 27872 2914 0x00000000 f3424370 00000086 00000002 d732bf58 00000000 00000000 00000000 00000001 c14f22c0 f34244e4 c14f22c0 00000000 00000000 b147d7c0 00000000 00000002 00000001 f35bfc88 000007fb e0252b00 34cff000 34cff000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task ps:30517 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ps D d7325e80 0 30517 30515 0x00000000 f612a940 00000086 00000002 d7325e80 c13129c0 c56c4080 00000000 00000000 c14f22c0 f612aab4 c14f22c0 00000001 c1065a63 00000001 00000041 00007815 00000001 00000246 00000246 00000001 00000041 c56c4080 00000000 00000001 Call Trace: [<c1065a63>] ? zone_watermark_ok+0x2a/0x30 [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c1304997>] ? call_rwsem_down_read_failed+0x7/0xc [<c130442f>] ? down_read+0x14/0x16 [<c1075f48>] ? __access_remote_vm+0x1f/0x14d [<c107625b>] ? access_process_vm+0x3e/0x51 [<c10b6a90>] ? proc_pid_cmdline+0x58/0xc8 [<c10b75d0>] ? proc_info_read+0x44/0x8c [<c10b758c>] ? proc_single_show+0x59/0x59 [<c1088e58>] ? vfs_read+0x75/0x9b [<c1088ebf>] ? sys_read+0x41/0x64 [<c1304bdd>] ? syscall_call+0x7/0xb INFO: task firefox-bin:27872 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D d732bf58 0 27872 2914 0x00000000 f3424370 00000086 00000002 d732bf58 00000000 00000000 00000000 00000001 c14f22c0 f34244e4 c14f22c0 00000000 00000000 b147d7c0 00000000 00000002 00000001 f35bfc88 000007fb e0252b00 34cff000 34cff000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task ps:30517 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ps D d7325e80 0 30517 30515 0x00000000 f612a940 00000086 00000002 d7325e80 c13129c0 c56c4080 00000000 00000000 c14f22c0 f612aab4 c14f22c0 00000001 c1065a63 00000001 00000041 00007815 00000001 00000246 00000246 00000001 00000041 c56c4080 00000000 00000001 Call Trace: [<c1065a63>] ? zone_watermark_ok+0x2a/0x30 [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c1304997>] ? call_rwsem_down_read_failed+0x7/0xc [<c130442f>] ? down_read+0x14/0x16 [<c1075f48>] ? __access_remote_vm+0x1f/0x14d [<c107625b>] ? access_process_vm+0x3e/0x51 [<c10b6a90>] ? proc_pid_cmdline+0x58/0xc8 [<c10b75d0>] ? proc_info_read+0x44/0x8c [<c10b758c>] ? proc_single_show+0x59/0x59 [<c1088e58>] ? vfs_read+0x75/0x9b [<c1088ebf>] ? sys_read+0x41/0x64 [<c1304bdd>] ? syscall_call+0x7/0xb INFO: task firefox-bin:27872 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. firefox-bin D d732bf58 0 27872 2914 0x00000000 f3424370 00000086 00000002 d732bf58 00000000 00000000 00000000 00000001 c14f22c0 f34244e4 c14f22c0 00000000 00000000 b147d7c0 00000000 00000002 00000001 f35bfc88 000007fb e0252b00 34cff000 34cff000 00000000 c107346b Call Trace: [<c107346b>] ? sys_madvise+0x42b/0x46c [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c13049a2>] ? call_rwsem_down_write_failed+0x6/0x8 [<c1304419>] ? down_write+0x1c/0x1e [<c10781f2>] ? sys_munmap+0x18/0x35 [<c1305310>] ? sysenter_do_call+0x12/0x26 [<c1300000>] ? wait_for_panic+0x25/0x36 INFO: task ps:30517 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. ps D d7325e80 0 30517 30515 0x00000000 f612a940 00000086 00000002 d7325e80 c13129c0 c56c4080 00000000 00000000 c14f22c0 f612aab4 c14f22c0 00000001 c1065a63 00000001 00000041 00007815 00000001 00000246 00000246 00000001 00000041 c56c4080 00000000 00000001 Call Trace: [<c1065a63>] ? zone_watermark_ok+0x2a/0x30 [<c130491d>] ? rwsem_down_failed_common+0xa1/0xc9 [<c1304997>] ? call_rwsem_down_read_failed+0x7/0xc [<c130442f>] ? down_read+0x14/0x16 [<c1075f48>] ? __access_remote_vm+0x1f/0x14d [<c107625b>] ? access_process_vm+0x3e/0x51 [<c10b6a90>] ? proc_pid_cmdline+0x58/0xc8 [<c10b75d0>] ? proc_info_read+0x44/0x8c [<c10b758c>] ? proc_single_show+0x59/0x59 [<c1088e58>] ? vfs_read+0x75/0x9b [<c1088ebf>] ? sys_read+0x41/0x64 [<c1304bdd>] ? syscall_call+0x7/0xb udevd[5382]: starting version 171 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>