Description of problem: I have been using EL 5.2 for a long time and have been using freenx to control my server. Since I have upgraded to EL 5.3, my server completly reboots after controlling it some minutes using freenx. There is no Oops in /var/log/messages, just a plain Apr 20 23:10:11 sun syslogd 1.4.1: restart. Version-Release number of selected component (if applicable): 2.6.18-128.1.6.el5xen How reproducible: Always. I just need to know how to get information why it crashes. Steps to Reproduce: 1. Control the machine via Freenx 2. 3. Actual results: Reboots after 5-30 minutes Expected results: Should work flawlessly, as it did with 5.2 Additional information: I am using Xen with a routed setup.
Next time the problem appears my system will automatically generate a vmcore file. Hope that I can extract some information out of it. if you need more data to fix this problem, please let me know.
I have gathered information that should make it possible to analyse the problem which is as follows: KERNEL: /usr/lib/debug/lib/modules/2.6.18-128.1.6.el5xen/vmlinux DUMPFILE: vmcore CPUS: 2 DATE: Tue Apr 21 16:26:12 2009 UPTIME: 16:48:46 LOAD AVERAGE: 0.01, 0.08, 0.06 TASKS: 221 NODENAME: sun.bentos RELEASE: 2.6.18-128.1.6.el5xen VERSION: #1 SMP Wed Apr 1 07:21:08 EDT 2009 MACHINE: x86_64 (2813 Mhz) MEMORY: 1.6 GB PANIC: "Oops: 0002 [1] SMP " (check log for details) PID: 21394 COMMAND: "firefox" TASK: ffff880053626080 [THREAD_INFO: ffff880019604000] CPU: 0 STATE: TASK_RUNNING (PANIC) crash> bt PID: 21394 TASK: ffff880053626080 CPU: 0 COMMAND: "firefox" #0 [ffff880019605780] crash_kexec at ffffffff802a3bb8 #1 [ffff880019605840] __die at ffffffff80264349 #2 [ffff880019605880] do_page_fault at ffffffff80266971 #3 [ffff880019605970] error_exit at ffffffff8025f82b [exception RIP: xen_create_contiguous_region+141] RIP: ffffffff8027d217 RSP: ffff880019605a28 RFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800112d4000 RCX: 0000000000001000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800112d7000 RBP: 0000000000000000 R8: ffffffff804eac44 R9: 0000000000000000 R10: ffff880019605a28 R11: 0000000000000048 R12: 0000000000000002 R13: 0000000000000004 R14: ffff8800648af140 R15: ffff88000001b7c0 ORIG_RAX: ffffffffffffffff CS: e030 SS: e02b #4 [ffff880019605a20] xen_create_contiguous_region at ffffffff8027d1cd #5 [ffff880019605aa0] skbuff_ctor at ffffffff803a8439 #6 [ffff880019605ac0] cache_alloc_refill at ffffffff8025e1c0 #7 [ffff880019605b20] kmem_cache_alloc at ffffffff8020afbc #8 [ffff880019605b40] alloc_skb_from_cache at ffffffff80235df4 #9 [ffff880019605b80] sock_alloc_send_skb at ffffffff8040a972 #10 [ffff880019605be0] unix_stream_sendmsg at ffffffff8024bd8c #11 [ffff880019605c70] do_sock_write at ffffffff80238947 #12 [ffff880019605ca0] sock_writev at ffffffff80409e68 #13 [ffff880019605e60] do_readv_writev at ffffffff802cf174 #14 [ffff880019605f40] sys_writev at ffffffff802cf31d #15 [ffff880019605f80] tracesys at ffffffff8025f2f9 (via system_call) RIP: 00000034250cc033 RSP: 00007fff45256170 RFLAGS: 00000202 RAX: ffffffffffffffda RBX: ffffffff8025f2f9 RCX: ffffffffffffffff RDX: 0000000000000002 RSI: 00007fff452561d0 RDI: 0000000000000003 RBP: 0000000000000003 R8: 0000000000000002 R9: 0000000000000000 R10: 00007fff45256580 R11: 0000000000000202 R12: 00007fff452561d0 R13: 0000000000000002 R14: 000000000000caf4 R15: 0000000100000000 ORIG_RAX: 0000000000000014 CS: 0033 SS: e02b
even more ;) Unable to handle kernel paging request at ffff8800112d7000 RIP: [<ffffffff8027d217>] xen_create_contiguous_region+0x8d/0x456 PGD 1270067 PUD 1271067 PMD 12fb067 PTE 0 Oops: 0002 [1] SMP last sysfs file: /devices/pci0000:00/0000:00:00.0/irq CPU 0 Modules linked in: xt_tcpudp xt_physdev bridge iptable_filter ip_tables x_tables netloop netbk blktap blkbk ipv6 xfrm_nalgo crypto_api powernow_k8 freq_table loop dm_multipath scsi_dh video backlight sbs i2c_ec button battery asus_acpi ac parport_pc lp parport snd_hda_intel snd_seq_dummy snd_seq_oss snd_seq_midi_ev ent snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss shpchp snd_pcm snd_timer snd_page_alloc snd_hwdep snd sg soundcore serial_core r8169 mii k8_edac edac_mc k8temp hwmon pcspkr serio_raw i2c_piix4 i2c_core dm_raid45 dm_message dm_region_hash dm_mem_cache dm_snapshot dm_zero dm_mirror dm_log dm_mod ahci libata sd_m od scsi_mod ext3 jbd uhci_hcd ohci_hcd ehci_hcd Pid: 21394, comm: firefox Not tainted 2.6.18-128.1.6.el5xen #1 RIP: e030:[<ffffffff8027d217>] [<ffffffff8027d217>] xen_create_contiguous_region+0x8d/0x456 RSP: e02b:ffff880019605a28 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800112d4000 RCX: 0000000000001000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8800112d7000 RBP: 0000000000000000 R08: ffffffff804eac44 R09: 0000000000000000 R10: ffff880019605a28 R11: 0000000000000048 R12: 0000000000000002 R13: 0000000000000004 R14: ffff8800648af140 R15: ffff88000001b7c0 FS: 00002abb6585e1c0(0000) GS:ffffffff805ba000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 Process firefox (pid: 21394, threadinfo ffff880019604000, task ffff880053626080) Stack: ffffffff8068ea40 0000000000000004 0000000000000000 0000000000007ff0 ffff880019605a70 0000000000000001 0000000000000002 0000000000007ff0 0000000000000000 ffff88000196be60 Call Trace: [<ffffffff803a8439>] skbuff_ctor+0x2c/0x45 [<ffffffff8025e1c0>] cache_alloc_refill+0x3e6/0x4ba [<ffffffff8020afbc>] kmem_cache_alloc+0x50/0x6d [<ffffffff80235df4>] alloc_skb_from_cache+0x52/0x13c [<ffffffff8040a972>] sock_alloc_send_skb+0x74/0x1dc [<ffffffff8022eca0>] __wake_up+0x38/0x4f [<ffffffff8024bd8c>] unix_stream_sendmsg+0x15f/0x346 [<ffffffff80238947>] do_sock_write+0xc4/0xce [<ffffffff80409e68>] sock_writev+0xb7/0xd1 [<ffffffff80315c2f>] avc_has_perm+0x43/0x55 [<ffffffff80299fec>] autoremove_wake_function+0x0/0x2e [<ffffffff802cf174>] do_readv_writev+0x176/0x295 [<ffffffff80408a24>] sock_ioctl+0x1c1/0x1e5 [<ffffffff802ad717>] audit_syscall_entry+0x16e/0x1a1 [<ffffffff802cf31d>] sys_writev+0x45/0x93 [<ffffffff8025f2f9>] tracesys+0xab/0xb6 Code: f3 aa 48 c7 c7 80 31 53 80 e8 cb 67 fe ff 48 89 df 49 89 c2 RIP [<ffffffff8027d217>] xen_create_contiguous_region+0x8d/0x456 RSP <ffff880019605a28>
this is a dup of bug 479754. 2.6.18-138.el5bz479754xen fixes the issue for me.
*** This bug has been marked as a duplicate of bug 479754 ***