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Message-Id: <200507311019.j6VAJ11r067702@www.freebsd.org>
Date: Sun, 31 Jul 2005 10:19:01 GMT
From: Matthias Apitz <guru@Sisis.de>
To: freebsd-gnats-submit@FreeBSD.org
Subject: panic during monitoring a proc (425) with truss
X-Send-Pr-Version: www-2.3

>Number:         84384
>Category:       kern
>Synopsis:       panic during monitoring a proc (425) with truss
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    linimon
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 31 10:20:23 GMT 2005
>Closed-Date:    Mon Jul 23 03:49:48 GMT 2007
>Last-Modified:  Mon Jul 23 03:49:48 GMT 2007
>Originator:     Matthias Apitz
>Release:        6.0-BETA1
>Organization:
Sisis GmbH
>Environment:
$ uname -a
FreeBSD cazador.Sisis.de 6.0-BETA1 FreeBSD 6.0-BETA1 #0: Tue Jul 12 18:05:55 UTC 2005     root@x64.samsco.home:/usr/obj/usr/src/sys/GENERIC  i386
CPU: Intel(R) Pentium(R) 4 CPU 3.20GHz (3200.55-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf41  Stepping = 1
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C
MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Features2=0x441d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,<b14>>
  Hyperthreading: 2 logical CPUs
real memory  = 1073152000 (1023 MB)
avail memory = 1041166336 (992 MB)

      
>Description:

panic: Assertion !(curthread->td_flags & TDF_SINTR) failed at /usr/src/sys/kern/subr_sleepqueue.c:534
cpuid = 1
KDB: enter: panic:
[thread pid 425 tid 100107]
stopped at kdb_enter+0x2b: nop

This occured while I was monitoring the pid 425, sshd, with truss:

# mount_procfs /dev/procfs /proc
# truss -f -p 425

and were trying to login with ssh to that machine, not providing the
password (just hiting ENTER 3 times); on the 2nd ssh connect without
proving the passwords, the system with the sshd / truss panics;  
>How-To-Repeat:

yes, exactly as described above the problem can be repeated;     
>Fix:
      
>Release-Note:
>Audit-Trail:

From: "Howard Su" <howard0su@gmail.com>
To: bug-followup@FreeBSD.org, guru@Sisis.de
Cc:  
Subject: Re: kern/84384: panic during monitoring a proc (425) with truss
Date: Wed, 20 Jun 2007 20:21:20 +0800

 can not repro after ptrace based truss imported. suggest to close.
 
State-Changed-From-To: open->feedback 
State-Changed-By: linimon 
State-Changed-When: Thu Jun 21 01:22:02 UTC 2007 
State-Changed-Why:  
To submitter: are you still seeing this problem after the import? 


Responsible-Changed-From-To: freebsd-bugs->linimon 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Thu Jun 21 01:22:02 UTC 2007 
Responsible-Changed-Why:  

http://www.freebsd.org/cgi/query-pr.cgi?pr=84384 
State-Changed-From-To: feedback->closed 
State-Changed-By: linimon 
State-Changed-When: Mon Jul 23 03:49:16 UTC 2007 
State-Changed-Why:  
Feedback timeout (1 month).  The problem is believed to be fixed. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=84384 
>Unformatted:
