Bug #1154: Kernel panic after connecting to OpenVPN - pfSense - pfSense bugtracker

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Bug #1154

closed

Kernel panic after connecting to OpenVPN

Added by . . almost 14 years ago. Updated almost 14 years ago.

Status:

Closed

Priority:

High

Assignee:

Category:

Operating System

Target version:

2.1

Start date:

01/03/2011

Due date:

% Done:

Estimated time:

Plus Target Version:

Release Notes:

Affected Version:

2.0

Affected Architecture:

Description

I have 2.0-BETA5 (i386) built on Fri Dec 31 14:08:23 EST 2010.

After connecting from a client to the firewall via openvpn the kernel panics with:

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address= 0x0
fault code= supervisor read, page not present
instruction pointer= 0x20:0x0
stack pointer = 0x28:0xcca52bbc
frame pointer = 0x28:0xcca52bc8
code segment= base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1
processor eflags= interrupt enabled, resume, IOPL = 0
current process= 0 (em0 taskq)
trap number= 12
panic: page fault
cpuid = 0
Uptime: 1h22m12s
Cannot dump. Device not defined or unavailable.
Automatic reboot in 15 seconds - press a key on the console to abort
Rebooting...

There is also a report in the forum:
http://forum.pfsense.org/index.php/topic,31721.0.html

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Updated by Chris Buechler almost 14 years ago

Subject changed from Kernel panic to Kernel panic after connecting to OpenVPN
Category set to Operating System
Target version set to 2.0
Affected Version set to 2.0

We've done multiple production 2.0 OpenVPN deployments within the past week even and haven't seen this. Please attach a back trace.

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Updated by vito B almost 14 years ago

Chris,
Here is my thread on this also from dec 13
Old snaps worked fine. (oct) this happens on a few different firewalls (diff hardware)
http://forum.pfsense.org/index.php/topic,31031.msg163019.html#msg163019
Hope this helps.

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Updated by Nick K almost 14 years ago

We also reference the problem in http://forum.pfsense.org/index.php/topic,31721.0.html

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Updated by Nick K almost 14 years ago

Successfully grabbed the panic in developer:

Kernel page fault with the following non-sleepable locks held:
exclusive sleep mutex em0 (EM TX Lock) r = 0 (0xc2f52580) locked @ /usr/pfSensesrc/src/sys/dev/e1000/if_lem.c:1350
KDB: stack backtrace:
X_db_sym_numargs(c0eb7066,e302aa90,c0a41d45,546,0,...) at X_db_sym_numargs+0x146
kdb_backtrace(546,0,ffffffff,c145d1ac,e302aac8,...) at kdb_backtrace+0x29
witness_display_spinlock(c0eb957e,e302aadc,4,1,0,...) at witness_display_spinlock+0x75
witness_warn(5,0,c0ef792d,14,c131b140,...) at witness_warn+0x20d
trap(e302ab68) at trap+0x19e
alltraps(c336dc00,dedeadc0,c336dc00,c336dc00,e302abf0,...) at alltraps+0x1b
m_tag_delete_chain(c336dc00,0,c0e6e512,0,c2ed9bc0,...) at m_tag_delete_chain+0x3f
reallocf(c336dc00,100,0,c0a42798,df,...) at reallocf+0x8a5
uma_zfree_arg(c1d7e380,c336dc00,0,bc,e302ac84,...) at uma_zfree_arg+0x29
m_freem(c336dc00,4,c0e6e512,b87,c2f4e000,...) at m_freem+0x43
ed_probe_RTL80x9(c2f52580,0,c0e6e512,546,c2f525bc,...) at 0xc06ec448
ed_probe_RTL80x9(c2f4e000,1,c0eb8937,4f,c2edb918,...) at 0xc06efe10
taskqueue_run(c2edb900,c2edb918,c0ea5cf0,0,c0eb1f96,...) at taskqueue_run+0x103
taskqueue_thread_loop(c2f525ec,e302ad38,c0eaeb05,344,c131b140,...) at taskqueue_thread_loop+0x68
fork_exit(c0a3afc0,c2f525ec,e302ad38) at fork_exit+0xb8
fork_trampoline() at fork_trampoline+0x8
--- trap 0, eip = 0, esp = 0xe302ad70, ebp = 0 ---

Fatal trap 12: page fault while in kernel mode
cpuid = 0; apic id = 00
fault virtual address= 0xdedeadc0
fault code= supervisor read, page not present
instruction pointer= 0x20:0xc0a60fe8
stack pointer = 0x28:0xe302aba8
frame pointer = 0x28:0xe302abb8
code segment= base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1
processor eflags= interrupt enabled, resume, IOPL = 0
current process= 0 (em0 taskq)
[thread pid 0 tid 64050 ]
Stopped at m_tag_delete+0x48: movl 0(%ecx),%eax
db>