NetBSD Problem Report #58844
From martin@aprisoft.de Fri Nov 22 14:09:35 2024
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for <gnats-bugs@gnats.NetBSD.org>; Fri, 22 Nov 2024 14:09:35 +0000 (UTC)
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Date: Fri, 22 Nov 2024 15:09:25 +0100 (CET)
From: martin@NetBSD.org
Reply-To: martin@NetBSD.org
To: gnats-bugs@NetBSD.org
Subject: compat_netbsd32 modctl does not properly convert argumen structures
X-Send-Pr-Version: 3.95
>Number: 58844
>Category: kern
>Synopsis: compat_netbsd32 modctl does not properly convert argumen structures
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Fri Nov 22 14:10:00 +0000 2024
>Originator: Martin Husemann
>Release: NetBSD 10.99.12
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD nelly.aprisoft.de 10.99.12 NetBSD 10.99.12 (NELLY) #79: Fri Nov 22 13:18:24 CET 2024 martin@seven-days-to-the-wolves.aprisoft.de:/work/src/sys/arch/sparc64/compile/NELLY sparc
Architecture: sparc
Machine: sparc
>Description:
Running a 32bit userland on a 64bit kernel under netbsd32 emulation does
not convert the argument structure(s) for modctl. This makes the modstat
output strange:
[~] martin@nelly > file `which modstat`
/sbin/modstat: ELF 32-bit MSB executable, SPARC, version 1 (SYSV), dynamically linked, interpreter /libexec/ld.elf_so, for NetBSD 10.99.9, not stripped
[~] martin@nelly > ll /sbin/modstat
-r-xr-xr-x 1 root wheel 10316 Sep 26 2023 /sbin/modstat*
[~] martin@nelly > modstat
NAME CLASS SOURCE FLAG REFS SIZE REQUIRES
aes misc builtin - 1 - -
aes_ccm misc builtin - 0 - ace_common
aio misc builtin - 0 - -
audio driver builtin - 0 - -
blake2s misc builtin - 0 - -
blowfish misc builtin - 1 - -
bpf driver builtin - 1 - _common
bpf_filter misc builtin - 1 - -
bufq_disksort bufq builtin - 0 - -
bufq_fcfs bufq builtin - 1 - -
camellia misc builtin - 1 - -
cast128 misc builtin - 1 - -
cd9660 vfs builtin - 0 - -
chacha misc builtin - 0 - -
clockctl driver builtin - 0 - -
compat_100 exec builtin - 2 - -
compat_110 exec builtin - 1 - -
compat_90 exec builtin - 1 - bsd32
compat_netbsd32 exec builtin - 7 - bsd32
compat_netbsd32_100 exec builtin - 1 - mon
compat_netbsd32_110 exec builtin - 0 - ace_common
compat_netbsd32_90 exec builtin - 0 - netbsd32
compat_netbsd32_coredump misc builtin - 0 - t_netbsd32
compat_netbsd32_mqueue exec builtin - 0 - netbsd32
compat_netbsd32_ptrace exec builtin - 1 - npf
compat_netbsd32_raid exec builtin - 0 -
compat_netbsd32_sysvipc exec builtin - 0 - pat_netbsd32
compat_util misc builtin - 1 - -
cons driver builtin - 0 - -
coredump misc builtin - 1 - -
crypto driver builtin - 0 - d,compat_netbsd32
des misc builtin - 1 - -
dk_subr misc builtin - 1 - -
drvctl driver builtin - 0 - -
exec_aout exec builtin - 0 - -
exec_elf32 exec builtin - 1 - -
exec_elf64 exec builtin - 0 - -
exec_script exec builtin - 0 - -
extensions secmodel builtin - 1 - -
ffs vfs builtin - 0 -
i2c_bitbang misc builtin - 0 - -
i2cexec misc builtin - 0 - -
if_agr driver builtin - 0 - -
if_gif driver builtin - 0 - mon
if_gre driver builtin - 0 - -
if_loop driver builtin - 0 - -
if_npflog driver builtin - 0 - -
if_ppp driver builtin - 0 - mmon
if_pppoe driver builtin - 0 - etbsd32
if_tap driver builtin - 0 - -
if_tun driver builtin - 0 - -
if_vlan driver builtin - 0 - -
ip_ecn misc builtin - 1 - -
kernfs vfs builtin - 0 - -
ksem misc builtin - 1 - -
layerfs misc builtin - 1 - -
mqueue misc builtin - 2 - -
nfs vfs builtin - 0 - -
npf misc builtin - 4 - ace_common
npf_alg_icmp misc builtin - 0 - ompat_netbsd32
npf_ext_log misc builtin - 0 - ace_common
npf_ext_normalize misc builtin - 0 - ace_common
npf_ext_rndblock misc builtin - 0 - ace_common
null vfs builtin - 0 - ompat_netbsd32
opencrypto misc builtin - 2 - -
procfs vfs builtin - 0 - e_common
ptrace exec builtin - 0 - ptrace_common
ptrace_common exec builtin - 3 - -
ptyfs vfs builtin - 0 - -
raid driver builtin - 1 - mon
scsi_subr exec builtin - 0 - -
secmodel_bsd44 secmodel builtin - 0 - common
securelevel secmodel builtin - 1 - -
skipjack misc builtin - 1 - -
slcompress misc builtin - 1 - -
sppp_subr misc builtin - 1 - -
suser secmodel builtin - 1 - -
swcrypto driver builtin - 0 - mon
sysv_ipc exec builtin - 1 - -
tmpfs vfs builtin - 0 - -
ufs misc builtin - 1 - mmon
vnd driver builtin - 0 - -
wapbl vfs builtin - 2 - -
zlib misc builtin - 1 - -
>How-To-Repeat:
s/a
Originally observed on 32bit sparc userland on a 64bit sparc64 kernel,
but reproduced with i386 userland on an amd64 machine too.
>Fix:
n/a
(Contact us)
$NetBSD: query-full-pr,v 1.49 2026/05/14 01:52:41 riastradh Exp $
$NetBSD: gnats_config.sh,v 1.10 2026/05/13 22:00:09 riastradh Exp $
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