Bug 1783584

Summary:	arch/s390/include/asm/syscall.h:syscall_get_nr() returns 0 for out-of-range syscall numbers
Product:	[Fedora] Fedora	Reporter:	Dmitry V. Levin <ldv>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	airlied, bskeggs, bugproxy, dan, esyr, hannsj_uhl, hdegoede, ichavero, itamar, jarodwilson, jeremy, jglisse, john.j5live, jonathan, josef, kernel-maint, linville, masami256, mchehab, mjg59, steved, tstaudt
Target Milestone:	---
Target Release:	---
Hardware:	s390x
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-06-24 08:35:51 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	467765, 1788636, 1790052, 1790053, 1790054, 1790057, 1790058

Description Dmitry V. Levin 2019-12-13 23:11:29 UTC

This bug report is cloned from https://pagure.io/fedora-infrastructure/issue/8449

Please fix s390x builders regression.
These builders used to work OK when I submitted strace 5.3 to Fedora at the end of September (see https://koji.fedoraproject.org/koji/buildinfo?buildID=1390111).
At the end of November, however, when I submitted strace 5.4,
the strace test suite complained that on s390x out-of-range syscalls do not generate ptrace syscall stops any longer.
See strace build log for details
(e.g. https://koji.fedoraproject.org/koji/taskinfo?taskID=39456442).

This looks like a seccomp+kernel issue specific to s390x.

This regression blocks build of strace package.

Comment 1 Dmitry V. Levin 2020-01-08 19:58:41 UTC

Apparently, arch/s390/include/asm/syscall.h:syscall_get_nr() returns 0 for out-of-range syscall numbers.
This bug is exposed via PTRACE_GET_SYSCALL_INFO interface and breaks strace.

Comment 2 Hanns-Joachim Uhl 2020-06-24 08:35:51 UTC

Hello Dmitry,
... with Fedora 32 now generally available I am closing this Fedora bugzilla as CURRENTRELEASE ...
... please reopen if required ...
Thanks for your support.