NetBSD Problem Report #54291

From gson@gson.org  Tue Jun 11 14:59:29 2019
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Date: Tue, 11 Jun 2019 17:59:23 +0300 (EEST)
From: gson@gson.org (Andreas Gustafsson)
Reply-To: gson@gson.org (Andreas Gustafsson)
To: gnats-bugs@NetBSD.org
Subject: pkg_add segfault
X-Send-Pr-Version: 3.95

>Number:         54291
>Category:       bin
>Synopsis:       pkg_add segfault
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    bin-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 11 15:00:01 +0000 2019
>Closed-Date:    Tue Jan 02 16:05:18 +0000 2024
>Last-Modified:  Tue Jan 02 16:05:18 +0000 2024
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date 2019.06.11.08.34.01
>Organization:

>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

On a freshly installed -current XEN3_DOM0, running "pkg_add git-base"
with a PKG_PATH of ftp://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/amd64/8.0/All
ended in pkg_add segfaulting:

  [...]
  git-base-2.21.0: copying /usr/pkg/share/examples/git/templates/hooks/update.sample to /usr/pkg/share/git-core/templates/hooks/update.sample
  git-base-2.21.0: copying /usr/pkg/share/examples/git/templates/info/exclude to /usr/pkg/share/git-core/templates/info/exclude
  ===========================================================================
  $NetBSD: MESSAGE,v 1.3 2016/05/26 15:41:06 khorben Exp $

  NOTE:	Pristine templates are located in:
          /usr/pkg/share/examples/git/templates.

  To use the git-cvsimport repository conversion from CVS, install git-cvs.

  To use the git-svn interface to Subversion, install git-svn.

  ===========================================================================
  [1]   Segmentation fault (core dumped) pkg_add git-base
  # gdb pkg_add /usr/pkg/pkg_add.core
  GNU gdb (GDB) 8.3
  [...]
  (No debugging symbols found in pkg_add)
  [New process 1]
  Core was generated by `pkg_add'.
  Program terminated with signal SIGSEGV, Segmentation fault.
  #0  0x00007360c5209143 in fetch_cache_put () from /usr/lib/libfetch.so.3
  (gdb) where
  #0  0x00007360c5209143 in fetch_cache_put () from /usr/lib/libfetch.so.3
  #1  0x00007360c52070ba in ?? () from /usr/lib/libfetch.so.3
  #2  0x00007360c520a1f9 in fetchIO_close () from /usr/lib/libfetch.so.3
  #3  0x0000000058e0d452 in ?? ()
  #4  0x00007360c446e88f in ?? () from /usr/lib/libarchive.so.4
  #5  0x00007360c446e8d7 in ?? () from /usr/lib/libarchive.so.4
  #6  0x00007360c446e951 in ?? () from /usr/lib/libarchive.so.4
  #7  0x00007360c446f5a5 in ?? () from /usr/lib/libarchive.so.4
  #8  0x0000000058e05fa3 in pkg_do ()
  #9  0x0000000058e07114 in pkg_perform ()
  #10 0x0000000058e10b59 in main ()
  (gdb) x/i $pc
  => 0x7360c5209143 <fetch_cache_put+132>:	mov    0x60(%rbx),%rax
  (gdb) print /x $rbx
  $1 = 0x5a5a5a5a5a5a5a5a
  (gdb) 

>How-To-Repeat:

>Fix:

>Release-Note:

>Audit-Trail:

State-Changed-From-To: open->feedback
State-Changed-By: riastradh@NetBSD.org
State-Changed-When: Mon, 11 Dec 2023 01:36:39 +0000
State-Changed-Why:
Can you install debug.tgz and get line numbers for the stack trace, and
maybe also frame locals?

PR bin/57179 (https://gnats.netbsd.org/57179) might be a duplicate,
looks like a double-free, perhaps.


From: Andreas Gustafsson <gson@gson.org>
To: gnats-bugs@netbsd.org
Cc: riastradh@NetBSD.org
Subject: Re: bin/54291 (pkg_add segfault)
Date: Mon, 11 Dec 2023 15:40:44 +0200

 riastradh@NetBSD.org wrote:
 > Can you install debug.tgz and get line numbers for the stack trace, and
 > maybe also frame locals?

 I no longer have the Xen test setup where the problem originally occurred.
 I tried to reproduce it on a freshly installed -current/amd64 system
 without Xen, but was unsuccessful.

 Specifically, running

   export PKG_PATH=ftp://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/amd64/8.0/All
   pkg_add git-base

 completed successfully.  I also ran "pkg_delete git-base; pkg_add
 git-base" in a loop for more than 100 iterations, and there were no
 crashes.
 -- 
 Andreas Gustafsson, gson@gson.org

State-Changed-From-To: feedback->closed
State-Changed-By: gson@NetBSD.org
State-Changed-When: Tue, 02 Jan 2024 16:05:18 +0000
State-Changed-Why:
Cannot reproduce, and possibly fixed by the patches in PR 57179.


>Unformatted:

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