NetBSD Problem Report #55119

From www@netbsd.org  Sat Mar 28 09:36:42 2020
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Date: Sat, 28 Mar 2020 09:36:40 +0000 (UTC)
From: tgrom.automail@nuegia.net
Reply-To: tgrom.automail@nuegia.net
To: gnats-bugs@NetBSD.org
Subject: mutt segfaults on start
X-Send-Pr-Version: www-1.0

>Number:         55119
>Category:       port-arm
>Synopsis:       mutt segfaults on start
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    port-arm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Mar 28 09:40:01 +0000 2020
>Last-Modified:  Sat Mar 28 16:40:01 +0000 2020
>Originator:     Thomas Groman
>Release:        9.0
>Organization:
>Environment:
NetBSD arm64 9.0 NetBSD 9.0 (GENERIC64) #0: Fri Feb 14 00:06:28 UTC 2020  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/GENERIC64 evbarm

>Description:
Mutt segfaults on launch.

arm64# gdb mutt
GNU gdb (GDB) 8.3
Copyright (C) 2019 Free Software Foundation, Inc.                                                                 
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Type "show copying" and "show warranty" for details.
This GDB was configured as "aarch64--netbsd".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
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Reading symbols from mutt...
(No debugging symbols found in mutt)
(gdb) run
Starting program: /usr/pkg/bin/mutt 

Program received signal SIGILL, Illegal instruction.
0x0000f9918ab4a128 in _armv8_pmull_probe () from /usr/lib/libcrypto.so.14
(gdb) bt
#0  0x0000f9918ab4a128 in _armv8_pmull_probe () from /usr/lib/libcrypto.so.14
#1  0x0000f9918ab4a478 in OPENSSL_cpuid_setup () from /usr/lib/libcrypto.so.14
#2  0x0000ffffeed83d3c in _rtld_call_init_functions () from /usr/libexec/ld.elf_so
#3  0x0000ffffeed845bc in _rtld () from /usr/libexec/ld.elf_so
#4  0x0000ffffeed80af0 in _rtld_start () from /usr/libexec/ld.elf_so
Backtrace stopped: previous frame identical to this frame (corrupt stack?)
(gdb)
>How-To-Repeat:
# pkg_add -v mutt
# mutt
>Fix:

>Audit-Trail:
From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-arm/55119: mutt segfaults on start
Date: Sat, 28 Mar 2020 10:42:14 +0100

 On Sat, Mar 28, 2020 at 09:40:01AM +0000, tgrom.automail@nuegia.net wrote:
 > Program received signal SIGILL, Illegal instruction.
 > 0x0000f9918ab4a128 in _armv8_pmull_probe () from /usr/lib/libcrypto.so.14
 > (gdb) bt
 > #0  0x0000f9918ab4a128 in _armv8_pmull_probe () from /usr/lib/libcrypto.so.14
 > #1  0x0000f9918ab4a478 in OPENSSL_cpuid_setup () from /usr/lib/libcrypto.so.14

 This is not a SEGFAULT and it is harmless (the library catches it).
 It is used to probe for arm features to enable optimized crypto code.

 You can continue in gdb at that point and everything should run normally.

 Martin

From: Tom <tgrom.automail@nuegia.net>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-arm/55119: mutt segfaults on start
Date: Sat, 28 Mar 2020 09:29:30 -0700

 On Sat, 28 Mar 2020 09:45:02 +0000 (UTC)
 Martin Husemann <martin@duskware.de> wrote:

 > The following reply was made to PR port-arm/55119; it has been noted
 > by GNATS.
 > 
 > From: Martin Husemann <martin@duskware.de>
 > To: gnats-bugs@netbsd.org
 > Cc: 
 > Subject: Re: port-arm/55119: mutt segfaults on start
 > Date: Sat, 28 Mar 2020 10:42:14 +0100
 > 
 >  On Sat, Mar 28, 2020 at 09:40:01AM +0000, tgrom.automail@nuegia.net
 > wrote:
 >  > Program received signal SIGILL, Illegal instruction.
 >  > 0x0000f9918ab4a128 in _armv8_pmull_probe ()
 >  > from /usr/lib/libcrypto.so.14 (gdb) bt
 >  > #0  0x0000f9918ab4a128 in _armv8_pmull_probe ()
 >  > from /usr/lib/libcrypto.so.14 #1  0x0000f9918ab4a478 in
 >  > OPENSSL_cpuid_setup () from /usr/lib/libcrypto.so.14  
 >  
 >  This is not a SEGFAULT and it is harmless (the library catches it).
 >  It is used to probe for arm features to enable optimized crypto code.
 >  
 >  You can continue in gdb at that point and everything should run
 > normally. 
 >  Martin
 >  

 How would I continue without gdb, because otherwise the program stops
 and generates a core dump. I can send you a coredump if that would be
 useful.

From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-arm/55119: mutt segfaults on start
Date: Sat, 28 Mar 2020 17:33:41 +0100

 On Sat, Mar 28, 2020 at 04:30:08PM +0000, Tom wrote:
 >  How would I continue without gdb, because otherwise the program stops
 >  and generates a core dump. I can send you a coredump if that would be
 >  useful.

 You would not continue *without* gdb, but just tell gdb "continue" and it
 will happily go on executing the program. You will likely hit two (or so)
 more of this SIGILL before you get to the real issue you are after.

 Martin

From: christos@zoulas.com (Christos Zoulas)
To: gnats-bugs@netbsd.org, port-arm-maintainer@netbsd.org, 
	gnats-admin@netbsd.org, netbsd-bugs@netbsd.org, 
	tgrom.automail@nuegia.net
Cc: 
Subject: Re: port-arm/55119: mutt segfaults on start
Date: Sat, 28 Mar 2020 12:35:35 -0400

 On Mar 28,  4:30pm, tgrom.automail@nuegia.net (Tom) wrote:
 -- Subject: Re: port-arm/55119: mutt segfaults on start

 |  How would I continue without gdb, because otherwise the program stops
 |  and generates a core dump. I can send you a coredump if that would be
 |  useful.

 Just type "continue" at the gdb prompt.

 christos

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