Date: Sun, 31 Jul 2005 10:19:01 GMT From: Matthias Apitz <guru@Sisis.de> To: freebsd-gnats-submit@FreeBSD.org Subject: i386/84384: panic during monitoring a proc (425) with truss Message-ID: <200507311019.j6VAJ11r067702@www.freebsd.org> Resent-Message-ID: <200507311020.j6VAKOpw000465@freefall.freebsd.org>
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>Number: 84384
>Category: i386
>Synopsis: panic during monitoring a proc (425) with truss
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Jul 31 10:20:23 GMT 2005
>Closed-Date:
>Last-Modified:
>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:
>Unformatted:
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