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Date: Tue, 13 Dec 2005 10:54:46 GMT
From: Andrea Gronchi <neta@blackbit.it>
To: freebsd-gnats-submit@FreeBSD.org
Subject: linux_compat /dev system freeze problem
X-Send-Pr-Version: www-2.3

>Number:         90330
>Category:       kern
>Synopsis:       [linux] linux_compat /dev system freeze problem
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Dec 13 11:00:10 GMT 2005
>Closed-Date:    Fri Nov 16 01:58:20 UTC 2007
>Last-Modified:  Fri Nov 16 01:58:20 UTC 2007
>Originator:     Andrea Gronchi
>Release:        6.0-RELEASE
>Organization:
Blackbit Studio
>Environment:
FreeBSD tron.blackbit.lan 6.0-RELEASE FreeBSD 6.0-RELEASE #0: Tue Nov 29 15:59:06 CET 2005     root@tron.blackbit.lan:/usr/src/sys/i386/compile/TRON  i386

>Description:
It seems that from a linux_compat process, listing the contents of "/dev" results in a system freeze.
>How-To-Repeat:
loaded modules:

root@tron# kldstat
Id Refs Address    Size     Name
 1   22 0xc0400000 3cd340   kernel
 2    1 0xc07ce000 7674     snd_emu10k1.ko
 3    2 0xc07d6000 1d9c8    sound.ko
 4    1 0xc07f4000 3be080   nvidia.ko
 5    1 0xc0bb3000 8e9c     aio.ko
 6   16 0xc0bbc000 5683c    acpi.ko
 7    1 0xc2c5a000 2000     rtc.ko
 8    1 0xc2c60000 8000     vmmon_up.ko
 9    1 0xc2c68000 2000     vmnet.ko
10    1 0xc2c6a000 4000     if_tap.ko
11    4 0xc2c8c000 a000     netgraph.ko
12    1 0xc2c9a000 3000     ng_ether.ko
13    1 0xc2c9d000 4000     ng_bridge.ko
14    1 0xc2ca2000 4000     ng_socket.ko

if I run /compat/linux/bin/bash -c "ls /dev"

my system immediately freezes.
>Fix:
Non that I am aware of.
>Release-Note:
>Audit-Trail:

From: Maxim Sobolev <sobomax@portaone.com>
To: bug-followup@freebsd.org, neta@blackbit.it
Cc:  
Subject: Re: kern/90330: [linux] linux_compat /dev system freeze problem
Date: Mon, 26 Dec 2005 14:57:03 -0800

 Hi,
 
 I can't reproduce the problem neither on fresh 7.0-CURRENT nor on 
 6.0-STABLE. Perhaps it's related to some of kernel modules you have 
 loaded - can you please try to reproduce it without any additional 
 modules loaded (for example by booting into the single-user mode) and 
 let me know then.
 
 Regards,
 
 Maxim
State-Changed-From-To: open->closed 
State-Changed-By: kmacy 
State-Changed-When: Fri Nov 16 01:57:35 UTC 2007 
State-Changed-Why:  

Submitter timeout. I will re-open if you can confirm that this is still an issue. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=90330 
>Unformatted:
