Bob Proulx wrote: > I rebooted mgt just a bit ago and everything went smoothly.
All is not completely clean. The console is logging various error messages wall'd from syslogd. Fortunately this is on the internal non-critical node. Nothing on here is user facing. Doesn't affect outside users. This is on any logged in tty. Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739787] Process nrpe (pid: 13755, ti=dec9e000 task=c21e8440 task.ti=dec9e000) Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739794] Stack: Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739836] Call Trace: Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739903] Code: c6 8d a8 80 00 00 00 b8 00 00 00 00 53 8b 7d 04 39 ef 0f 44 f8 85 ff 74 3a 83 be 50 01 00 00 00 75 09 83 3d c8 e3 3f c1 00 74 28 <80> 0d 44 00 00 00 01 ff 47 3c ff 86 d4 03 00 00 83 be 50 01 00 Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739962] EIP: [<c122dba5>] tcp_send_fin+0x2f/0x16a SS:ESP 0069:dec9ff30 Message from syslogd@mgt at Jun 18 00:25:46 ... kernel:[ 4169.739970] CR2: 0000000000000044 And this on the Xen guest console. [ 4169.739552] BUG: unable to handle kernel NULL pointer dereference at 00000044 [ 4169.739570] IP: [<c122dba5>] tcp_send_fin+0x2f/0x16a [ 4169.739585] *pdpt = 000000001dd88027 *pde = 0000000000000000 [ 4169.739594] Oops: 0002 [#39] SMP [ 4169.739600] last sysfs file: /sys/devices/vbd-51714/block/xvda2/stat [ 4169.739608] Modules linked in: xt_tcpudp nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables evdev snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr ext3 jbd mbcache xen_blkfront xen_netfront [ 4169.739641] [ 4169.739646] Pid: 13755, comm: nrpe Tainted: G D (2.6.32-5-xen-686 #1) [ 4169.739753] EIP: 0061:[<c122dba5>] EFLAGS: 00210282 CPU: 2 [ 4169.739761] EIP is at tcp_send_fin+0x2f/0x16a [ 4169.739767] EAX: 00000000 EBX: 00000084 ECX: c20e1370 EDX: 00000002 [ 4169.739774] ESI: c20e1300 EDI: de306780 EBP: c20e1380 ESP: dec9ff30 [ 4169.739781] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0069 [ 4169.739787] Process nrpe (pid: 13755, ti=dec9e000 task=c21e8440 task.ti=dec9e000) [ 4169.739794] Stack: [ 4169.739797] 00000084 c20e1300 c20e1370 00000000 c12221b6 d7871368 c20e1300 d7871340 [ 4169.739809] <0> d7871368 dea06cc0 c123bf48 00000000 d7871340 c11ee3c5 00000008 d79fbd48 [ 4169.739822] <0> c11ee41f c10bd8ef d79fbd48 df41c380 d7871368 dea06cc0 00000000 c22a5800 [ 4169.739836] Call Trace: [ 4169.739845] [<c12221b6>] ? tcp_close+0x136/0x34e [ 4169.739852] [<c123bf48>] ? inet_release+0x3f/0x44 [ 4169.739860] [<c11ee3c5>] ? sock_release+0x11/0x52 [ 4169.739867] [<c11ee41f>] ? sock_close+0x19/0x1c [ 4169.739877] [<c10bd8ef>] ? __fput+0xd5/0x170 [ 4169.739883] [<c10bafe8>] ? filp_close+0x4e/0x54 [ 4169.739889] [<c10bb048>] ? sys_close+0x5a/0x8d [ 4169.739897] [<c1008f3c>] ? syscall_after_call+0x0/0x4 [ 4169.739903] Code: c6 8d a8 80 00 00 00 b8 00 00 00 00 53 8b 7d 04 39 ef 0f 44 f8 85 ff 74 3a 83 be 50 01 00 00 00 75 09 83 3d c8 e3 3f c1 00 74 28 <80> 0d 44 00 00 00 01 ff 47 3c ff 86 d4 03 00 00 83 be 50 01 00 [ 4169.739962] EIP: [<c122dba5>] tcp_send_fin+0x2f/0x16a SS:ESP 0069:dec9ff30 [ 4169.739970] CR2: 0000000000000044 [ 4169.739976] ---[ end trace 6296c3d10e9dc266 ]--- This is the dpkg.log for the upgrade. 2015-06-17 06:50:27 startup archives unpack 2015-06-17 06:50:28 upgrade linux-base 2.6.32-48squeeze11 2.6.32-48squeeze12 2015-06-17 06:50:28 status half-configured linux-base 2.6.32-48squeeze11 2015-06-17 06:50:28 status unpacked linux-base 2.6.32-48squeeze11 2015-06-17 06:50:28 status half-installed linux-base 2.6.32-48squeeze11 2015-06-17 06:50:28 status triggers-pending man-db 2.5.7-8 2015-06-17 06:50:28 status half-installed linux-base 2.6.32-48squeeze11 2015-06-17 06:50:28 status half-installed linux-base 2.6.32-48squeeze11 2015-06-17 06:50:28 status unpacked linux-base 2.6.32-48squeeze12 2015-06-17 06:50:28 status unpacked linux-base 2.6.32-48squeeze12 2015-06-17 06:50:28 upgrade linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2.6.32-48squeeze12 2015-06-17 06:50:28 status half-configured linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2015-06-17 06:50:29 status unpacked linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2015-06-17 06:50:29 status half-installed linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2015-06-17 06:50:49 status half-installed linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2015-06-17 06:50:49 status unpacked linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2015-06-17 06:50:56 status unpacked linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2015-06-17 06:51:00 upgrade linux-libc-dev 2.6.32-48squeeze11 2.6.32-48squeeze12 2015-06-17 06:51:00 status half-configured linux-libc-dev 2.6.32-48squeeze11 2015-06-17 06:51:00 status unpacked linux-libc-dev 2.6.32-48squeeze11 2015-06-17 06:51:01 status half-installed linux-libc-dev 2.6.32-48squeeze11 2015-06-17 06:51:03 status half-installed linux-libc-dev 2.6.32-48squeeze11 2015-06-17 06:51:05 status unpacked linux-libc-dev 2.6.32-48squeeze12 2015-06-17 06:51:05 status unpacked linux-libc-dev 2.6.32-48squeeze12 2015-06-17 06:51:05 trigproc man-db 2.5.7-8 2.5.7-8 2015-06-17 06:51:05 status half-configured man-db 2.5.7-8 2015-06-17 06:51:13 status installed man-db 2.5.7-8 2015-06-17 06:51:16 startup packages configure 2015-06-17 06:51:16 configure linux-base 2.6.32-48squeeze12 2.6.32-48squeeze12 2015-06-17 06:51:16 status unpacked linux-base 2.6.32-48squeeze12 2015-06-17 06:51:17 status half-configured linux-base 2.6.32-48squeeze12 2015-06-17 06:51:19 status installed linux-base 2.6.32-48squeeze12 2015-06-17 06:51:19 configure linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2.6.32-48squeeze12 2015-06-17 06:51:19 status unpacked linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2015-06-17 06:51:19 status half-configured linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2015-06-17 06:52:13 status installed linux-image-2.6.32-5-xen-686 2.6.32-48squeeze12 2015-06-17 06:52:13 configure linux-libc-dev 2.6.32-48squeeze12 2.6.32-48squeeze12 2015-06-17 06:52:13 status unpacked linux-libc-dev 2.6.32-48squeeze12 2015-06-17 06:52:13 status half-configured linux-libc-dev 2.6.32-48squeeze12 2015-06-17 06:52:13 status installed linux-libc-dev 2.6.32-48squeeze12 Is it the kernel upgrade? Maybe. 2015-06-17 06:50:28 upgrade linux-image-2.6.32-5-xen-686 2.6.32-48squeeze11 2.6.32-48squeeze12 I am going to reboot it again just because and then and and see. Bob
