Hello, some of my virtual machines (kvm/qemu) sometimes crash (xfs, Ubuntu 10.04, 2.6.32-31-x86_64). I think it happens while taking LVM-snapshots from the XFS-Filesystem of that machines: BUG: soft lockup - CPU#7 stuck for 61s! [kswapd0:84] Modules linked in: reiserfs ipt_ULOG ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm xfs exportfs bridge stp ppdev fbcon tileblit font bitblit softcursor parport_pc psmouse serio_raw i5000_edac bnx2 vga16fb vgastate edac_core i5k_amb shpchp lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 raid0 floppy multipath ahci e1000e linear CPU 7: Modules linked in: reiserfs ipt_ULOG ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables kvm_intel kvm xfs exportfs bridge stp ppdev fbcon tileblit font bitblit softcursor parport_pc psmouse serio_raw i5000_edac bnx2 vga16fb vgastate edac_core i5k_amb shpchp lp parport raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 raid0 floppy multipath ahci e1000e linear Pid: 84, comm: kswapd0 Not tainted 2.6.32-27-server #49-Ubuntu PRIMERGY TX200 S4 RIP: 0010:[] [] __write_lock_failed+0x9/0x20 RSP: 0018:ffff88062237dbc8 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffff88062237dbd0 RCX: 0000000000000000 RDX: ffffffffa01c3a00 RSI: 0000000000000000 RDI: ffff8806190c6048 RBP: ffffffff81012cae R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 000000000000007c R12: ffff88061ae424d0 R13: ffff8802b2c18c00 R14: ffff88061ae424d0 R15: 0000000000000202 FS: 0000000000000000(0000) GS:ffff880016fc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 0000000001001000 CR4: 00000000000026e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: [] ? _write_lock+0x17/0x20 [] ? xfs_inode_ag_walk+0x68/0x140 [xfs] [] ? xfs_reclaim_inode+0x0/0x120 [xfs] [] ? xfs_inode_ag_iterator+0x99/0xe0 [xfs] [] ? xfs_reclaim_inode+0x0/0x120 [xfs] [] ? xfs_reclaim_inode_shrink+0xfc/0x140 [xfs] [] ? shrink_slab+0x125/0x190 [] ? balance_pgdat+0x526/0x6d0 [] ? isolate_pages_global+0x0/0x50 [] ? kswapd+0xfe/0x150 [] ? autoremove_wake_function+0x0/0x40 [] ? kswapd+0x0/0x150 [] ? kthread+0x96/0xa0 [] ? child_rip+0xa/0x20 This link seems to describe the same problem with Xen: http://lists.xensource.com/archives/html/xen-users/2010-04/msg01135.html Any ideas ? Thanks Stefan _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
