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[Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsuppor
From: |
pgnet |
Subject: |
[Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ? |
Date: |
Fri, 03 Nov 2017 17:23:44 -0000 |
The statically linked qemu files in chroot are cp'd from the host env
file $(which qemu-arm) $(which qemu-arm-binfmt)
/usr/bin/qemu-arm: ELF 64-bit LSB executable, x86-64,
version 1 (GNU/Linux), statically linked, for GNU/Linux 3.0.0,
BuildID[sha1]=a6c50ab9b8f1845daab2f41d85936712aabafd89, not stripped
/usr/bin/qemu-arm-binfmt: ELF 64-bit LSB executable, x86-64,
version 1 (GNU/Linux), statically linked, for GNU/Linux 3.0.0,
BuildID[sha1]=ff78e29b45699433557fab5396b79f07211fd3d5, not stripped
where
rpm -q --whatprovides $(which qemu-arm) $(which qemu-arm-binfmt)
qemu-linux-user-2.10.1-412.1.x86_64
qemu-linux-user-2.10.1-412.1.x86_64
pkg
qemu-linux-user-2.10.1-412.1.x86_64
is sourced/installed from the openSUSE 'Virtualization' repo,
https://build.opensuse.org/package/show/Virtualization/qemu-
linux-user
and,
rpm -q --changelog qemu-linux-user-2.10.1-412.1.x86_64 | head -n 20
* Thu Oct 19 2017 address@hidden
- Patch queue updated from git://github.com/openSUSE/qemu.git
opensuse-2.10
* Patches added:
0040-io-monitor-encoutput-buffer-size-fr.patch
0041-cirrus-fix-oob-access-in-mode4and5-.patch
0042-9pfs-use-g_malloc0-to-allocate-spac.patch
* Tue Oct 03 2017 address@hidden
- Update to v2.10.1 a stable, bug-fix-only release
* Patches dropped (upstream):
0034-slirp-fix-clearing-ifq_so-from-pend.patch
0035-s390-ccw-Fix-alignment-for-CCW1.patch
0038-s390x-ais-for-2.10-stable-disable-a.patch
0039-s390x-cpumodel-remove-ais-from-z14-.patch
* Patches renamed:
0036-target-i386-cpu-Add-new-EPYC-CPU-mo.patch
- > 0034-target-i386-cpu-Add-new-EPYC-CPU-mo.patch
0037-chardev-baum-fix-baum-that-releases.patch
- > 0035-chardev-baum-fix-baum-that-releases.patch
0040-io-fix-temp-directory-used-by-test-.patch
--
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https://bugs.launchpad.net/bugs/1689367
Title:
In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages.
sys_getrandom ?
Status in QEMU:
Incomplete
Bug description:
On exec of an armv7 qemu chroot on my local x86_64 desktop, launched
via
/usr/sbin/qemu-binfmt-conf.sh
from
qemu-linux-user-2.9.0-374.1.x86_64
on the host, inside the chroot any compile activity is laced with
repetitions of
qemu: Unsupported syscall: 384
messages.
This wasn't always the case -- but, TBH, it's been ~ 6 months since I
used this env, and there have been scads of usual pkg updates in the
interim. These messages appear to be non-fatal, with no particular
effect at all; at least not so far ...
From a chat in #IRC,
[10:05] davidgiluk clever/pgnd: I see it as getrandom
[10:05] davidgiluk pgnd:
https://fedora.juszkiewicz.com.pl/syscalls.html sort it on the ARM table and
you can easily see it
[10:05] clever arch/arm/tools/syscall.tbl:384 common getrandom
sys_getrandom
[10:06] davidgiluk pgnd: my *guess* is that something is calling
getrandom, getting told it's not implemented and then falling back to using
/dev/urandom
[10:10] pgnd davidgiluk: If that *is* the case, is it to be considered
a problem, or just informational?
[10:12] davidgiluk pgnd: As long as it's falling back probably
informational; but someone should probably go and wire up sys_getrandom at some
point
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- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, Peter Maydell, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, Peter Maydell, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?,
pgnet <=
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, Peter Maydell, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, Peter Maydell, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, pgnet, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, pgnet, 2017/11/03
- [Qemu-devel] [Bug 1689367] Re: In qemu chroot, repeating "qemu: Unsupported syscall: 384" messages. sys_getrandom ?, Peter Maydell, 2017/11/07