NetBSD Problem Report #56295

From martin@duskware.de  Sat Jul  3 05:34:23 2021
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From: martin@NetBSD.org
Reply-To: martin@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: new failing test case: bin/dd/t_dd:length
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>Number:         56295
>Category:       kern
>Synopsis:       new failing test case: bin/dd/t_dd:length
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 03 05:35:00 +0000 2021
>Closed-Date:    Sat Jul 03 12:01:21 +0000 2021
>Last-Modified:  Sat Jul 03 12:01:21 +0000 2021
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.86
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD thirdstage.duskware.de 9.99.86 NetBSD 9.99.86 (MODULAR) #471: Fri Jul 2 20:01:20 CEST 2021 martin@thirdstage.duskware.de:/usr/src/sys/arch/sparc64/compile/MODULAR sparc64
Architecture: sparc64
Machine: sparc64
>Description:

After the recent changes one of the dd tests fails.

Previously (using /bin/sh) this would work:

$ dd if=/dev/zero of=/dev/fd/5 count=1 5>&1 | hexdump -C
1+0 records in
1+0 records out
512 bytes transferred in 0.001 secs (512000 bytes/sec)
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000200
$ 

But now:

$ dd if=/dev/zero of=/dev/fd/5 count=1 5>&1 | hexdump -C
1+0 records in
1+0 records out
512 bytes transferred in 0.001 secs (512000 bytes/sec)
$ 


>How-To-Repeat:
s/a

>Fix:
n/a

>Release-Note:

>Audit-Trail:
From: mlelstv@serpens.de (Michael van Elst)
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: kern/56295: new failing test case: bin/dd/t_dd:length
Date: Sat, 3 Jul 2021 06:28:13 -0000 (UTC)

 martin@NetBSD.org writes:

 >After the recent changes one of the dd tests fails.

 open returns success and an uninitialized fd value in case fd_dupopen
 fails.

 http://ftp.netbsd.org/pub/NetBSD/misc/mlelstv/vfs_syscalls.diff

State-Changed-From-To: open->closed
State-Changed-By: martin@NetBSD.org
State-Changed-When: Sat, 03 Jul 2021 12:01:21 +0000
State-Changed-Why:
Works with Michaels fix - thanks!


>Unformatted:

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