Hi,
I am running some fedora vms on a xenserver. These vms always seem to be
crashing for some reason or the other. Of late, I had installed netbeans and
was trying to run a web application. I noticed that the java process was
taking up a lot of memory, somewhere around 58%. Then all of a sudden the
kernel again crashed. How can I take the crash dump from such a machine and
whom should such reports be submitted to.
I have attached a file with what was displayed in xen-console of the VM.
Regards,
Ashish
[r...@server ~]# ------------[ cut here ]------------
Kernel BUG at ffffffff80465fc0 [verbose debug info unavailable]
invalid opcode: 0000 [1]
CPU 0
Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs bridge bnep rfcomm
l2cap bluetooth fuse sunrpc ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state
nf_conntrack ip6table_filter ip6_tables x_tables ipv6 loop dm_multipath pcspkr
xen_netfront dm_snapshot dm_zero dm_mirror dm_mod xen_blkfront ext3 jbd mbcache
uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode]
Pid: 30176, comm: java Not tainted 2.6.25-2.fc9.x86_64.xen #1
RIP: e030:[<ffffffff80465fc0>] [<ffffffff80465fc0>]
xen_failsafe_callback+0x0/0x10
RSP: e02b:ffff88001107d8a8 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffff88001109e000 RCX: ffffffff80465fc0
RDX: ffffffff80627210 RSI: 0000000000000006 RDI: ffffffff80627210
RBP: ffff88001107d948 R08: ffffffff8063d730 R09: 0000000000000000
R10: 0000035357a3d34e R11: 0000000000000202 R12: ffff880005296000
R13: ffff88001109e470 R14: 0000000000000000 R15: 0000000000af1c30
FS: 0000000000000000(0000) GS:ffffffff805bf000(0000) knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f49d71fc000 CR3: 0000000012106000 CR4: 0000000000002620
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process java (pid: 30176, threadinfo ffff88000a0f8000, task ffff880005296000)
Stack: ffffffff806171aa 0000000000000202 0000000000000000 0000000000000000
0000000000000063 0000000000000000 ffffffff806171aa 000000010000e030
0000000000000002 ffff88001107d900 000000000000e02b 0000000000000000
Call Trace:
Code: 0f 07 66 0f 1f 84 00 00 00 00 00 48 8b 0c 24 4c 8b 5c 24 08 48 83 c4 10
6a 00 50 48 8d 05 19 00 00 00 e9 54 fb ff ff 0f 1f 40 00 <0f> 0b 66 66 66 66 66
2e 0f 1f 84 00 00 00 00 00 48 89 fc 65 ff
RIP [<ffffffff80465fc0>] xen_failsafe_callback+0x0/0x10
RSP <ffff88001107d8a8>
---[ end trace 3332a4ea7a31fa8e ]---
BUG: soft lockup - CPU#0 stuck for 61s! [java:30176]
CPU 0:
Modules linked in: nfsd lockd nfs_acl auth_rpcgss exportfs bridge bnep rfcomm
l2cap bluetooth fuse sunrpc ip6t_REJECT xt_tcpudp nf_conntrack_ipv6 xt_state
nf_conntrack ip6table_filter ip6_tables x_tables ipv6 loop dm_multipath pcspkr
xen_netfront dm_snapshot dm_zero dm_mirror dm_mod xen_blkfront ext3 jbd mbcache
uhci_hcd ohci_hcd ehci_hcd [last unloaded: microcode]
Pid: 30176, comm: java Tainted: G D 2.6.25-2.fc9.x86_64.xen #1
RIP: e030:[<ffffffff8061722a>] [<ffffffff8061722a>] hypercall_page+0x22a/0x1000
RSP: e02b:ffff88001107d198 EFLAGS: 00000246
RAX: 0000000000030002 RBX: 0000000000000001 RCX: ffffffff8061722a
RDX: ffff88001d2aa968 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88001107d1b0 R08: ffff88000a0f8000 R09: ffff88000175f300
R10: 0000000000000006 R11: 0000000000000246 R12: ffff880005296000
R13: 00000000046a39f0 R14: 0000000000000000 R15: ffff88001107d548
FS: 0000000000000000(0000) GS:ffffffff805bf000(0000) knlGS:0000000000000000
CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00000000046a39f0 CR3: 0000000012106000 CR4: 0000000000002620
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
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