Quoting Oren Laadan (orenl@xxxxxxxxxxxxxxx): > Serge, > > Do you still get this problem with rc2 ? With rc2 some of the cr_tests pass. Some make the host kernel hang. Creating a trivial job container (with ssh daemon), checkpointing it works fine (checkpoint statefile attached), restarting it hangs the host kernel with the attached oops (file restartbug). -serge
[ 86.148432] BUG: unable to handle kernel paging request at fffffffffffffff2 [ 86.150544] IP: [<ffffffff8107d3ea>] pid_task+0x1a/0x40 [ 86.152011] PGD 1a05067 PUD 1a06067 PMD 0 [ 86.153274] Oops: 0000 [#1] SMP [ 86.153721] last sysfs file: /sys/devices/virtual/net/veth1/uevent [ 86.153721] CPU 0 [ 86.153721] Modules linked in: veth ppdev parport_pc parport psmouse serio_raw i2c_piix4 8139too virtio_blk 8139cp virtio_pci virtio_ring virtio floppy [ 86.153721] [ 86.153721] Pid: 1160, comm: apprestart Not tainted 2.6.37-0-generic #1cr3-Ubuntu /Bochs [ 86.153721] RIP: 0010:[<ffffffff8107d3ea>] [<ffffffff8107d3ea>] pid_task+0x1a/0x40 [ 86.153721] RSP: 0018:ffff88001b893d50 EFLAGS: 00010082 [ 86.153721] RAX: 0000000000000000 RBX: 00000000ffffffea RCX: ffff88001c488000 [ 86.153721] RDX: ffffffffffffffea RSI: 0000000000000000 RDI: ffffffffffffffea [ 86.153721] RBP: ffff88001b893d50 R08: 0000000000000000 R09: 00000000000275d4 [ 86.153721] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88001fa71000 [ 86.153721] R13: ffff88001f9fc470 R14: ffffffffffffffea R15: ffff88001f443a00 [ 86.153721] FS: 00007f9b323c3720(0000) GS:ffff88001f000000(0000) knlGS:0000000000000000 [ 86.153721] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 86.153721] CR2: fffffffffffffff2 CR3: 000000001f597000 CR4: 00000000000006f0 [ 86.153721] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.153721] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 86.153721] Process apprestart (pid: 1160, threadinfo ffff88001b892000, task ffff88001aea16d0) [ 86.153721] Stack: [ 86.153721] ffff88001b893d90 ffffffff81106c57 ffff88001b893db0 ffffffffffffffea [ 86.153721] ffff88001f443a00 ffff88001f9fc470 ffff88001fa71000 0000000000000000 [ 86.153721] ffff88001b893df0 ffffffff81106ebd 0000000000000000 ffff88001fa72000 [ 86.153721] Call Trace: [ 86.153721] [<ffffffff81106c57>] restore_task_pgrp+0x77/0x1b0 [ 86.153721] [<ffffffff81106ebd>] restore_validate_task+0x12d/0x3e0 [ 86.153721] [<ffffffff81108fea>] restore_read_tree+0x15a/0x340 [ 86.153721] [<ffffffff811095fc>] do_restore_coord+0x19c/0x950 [ 86.153721] [<ffffffff81111e9e>] ? __get_free_pages+0xe/0x50 [ 86.153721] [<ffffffff8110a1dd>] do_restart+0x1d/0x1d0 [ 86.153721] [<ffffffff81103819>] do_sys_restart+0x59/0xc0 [ 86.153721] [<ffffffff8103088e>] sys_restart+0xe/0x10 [ 86.153721] [<ffffffff810034c3>] stub_restart+0x13/0x20 [ 86.153721] [<ffffffff810030c2>] ? system_call_fastpath+0x16/0x1b [ 86.153721] Code: 7c 02 30 01 0f 94 c0 0f b6 c0 c9 c3 0f 1f 44 00 00 55 48 89 e5 0f 1f 44 00 00 31 c0 48 85 ff 75 08 c9 c3 66 0f 1f 44 00 00 89 f6 <48> 8b 54 f7 08 48 85 d2 74 ec 48 8d 04 76 c9 48 c1 e0 03 48 29 [ 86.153721] RIP [<ffffffff8107d3ea>] pid_task+0x1a/0x40 [ 86.153721] RSP <ffff88001b893d50> [ 86.153721] CR2: fffffffffffffff2 [ 86.153721] ---[ end trace 4f6b77e301a1ce41 ]--- [ 86.223534] [1164:24:c/r:wait_task_active:1249] pid 24 waiting [ 86.225094] [1163:46:c/r:wait_task_active:1249] pid 46 waiting
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