Public bug reported: Binary package hint: linux-image-2.6.15-51-server
Have /home on xfs partition on /dev/md0, RAID1 array which is shared via nfs. Get sporadic soft lockups when trying to shutdown my 6.06.02 machine. BUG: Soft lockup detected on CPU#0! [EMAIL PROTECTED]:/var/cache/apt/archives# uname -a Linux jersey 2.6.15-51-server #1 SMP Thu Dec 6 21:37:18 UTC 2007 i686 GNU/Linux [EMAIL PROTECTED]:/var/cache/apt/archives# cat /proc/cpuinfo processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 6 model name : AMD Athlon(tm) XP 2000+ stepping : 2 cpu MHz : 1674.468 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow bogomips : 3351.78 [EMAIL PROTECTED]:/var/cache/apt/archives# cat /proc/meminfo MemTotal: 1035672 kB MemFree: 331988 kB Buffers: 9960 kB Cached: 621828 kB SwapCached: 0 kB Active: 73628 kB Inactive: 565964 kB HighTotal: 131008 kB HighFree: 168 kB LowTotal: 904664 kB LowFree: 331820 kB SwapTotal: 979956 kB SwapFree: 979956 kB Dirty: 152 kB Writeback: 0 kB Mapped: 14332 kB Slab: 54516 kB CommitLimit: 1497792 kB Committed_AS: 20124 kB PageTables: 480 kB VmallocTotal: 118776 kB VmallocUsed: 5136 kB VmallocChunk: 113164 kB I can sometimes reproduce if I try to umount /home from the terminal rather than letting the shutdown scripts do it for me, e.g sync; then /etc/init.d/nfs-kernel-server stop; umount /home However sometimes the machine manages to shutdown on its own. System appears responsive to Alt+SysReq+..... but doesnt always give the output expected. Have twice gotten a backtrace out of the machine which looks like (written down from photos); Pid: 6345, comm: umount EIP: 0060:[<f8c67217>] CPU: 0 EIP is at xfs_iflush_all+0x57/0x90 [xfs] EFLAGS: 00000202 Not tainted (2.6.15-51-server) EAX: f3fd9104 EBX: c1bf7130 ECX: 00000000 EDX: f3fd9104 ESI: c1bf7000 EDI: f79b4de8 EBP: 00000001 DS: 007b ES: 007b CR0: 8005003b CR2: 08056400 CR3: 1fec72c0 CR4: 000006b0 [<f8c78414>] cfs_umountfs+0x14/0xf0 [xfs] [<f8c9573b>] linvfs_destroy_inode+0x1b/0x20 [xfs] [<f8c7ff22>] xfs_umount+0x132/0x1c0 [xfs] [<f8c95e6b>] linvfs_put_super+0x4b/0x90 [xfs] [<c0179a63>] generic_shutdown_super+0x93/0x140 [<c017a69e>] kill_block_super+0x2e/0x50 [<c017991a>] deactivate_super+0x7a/0xa0 [<c019253f>] sys_umount+0x3f/0xa0 [<c01925b5>] sys_oldumount+0x15/0x20 [<c0103313>] sysenter_past_esp+0x54/0x75 Not sure if this is because I tried to umount the fs to help the machine shutdown with Alt+SysReq+U. Once I managed to get a list of running tasks which showed that only; xfsbufd rc S40umountfs S40umountfs umount were running. Any more information I can supply to help? ** Affects: linux-source-2.6.15 (Ubuntu) Importance: Undecided Status: New -- 6.06.02 2.6.15-51-server soft lockup on cpu#0 on shutdown/umount xfs partition on /dev/md0 https://bugs.launchpad.net/bugs/191182 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs