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Marchesi" , Beau Belgrave , Linus Torvalds , Andrew Morton , Florian Weimer , Kees Cook , "Carlos O'Donell" , Sam James , Dylan Hatch , Borislav Petkov , Dave Hansen , David Hildenbrand , "H. Peter Anvin" , "Liam R. Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Vasily Gorbik , Thomas =?iso-8859-1?Q?Wei=DFschuh?= Subject: Re: [PATCH v2] unwind: Add sframe_(un)register() system calls Message-ID: <20260529082840.26496A2c-hca@linux.ibm.com> References: <20260528151023.00f5ec4e@gandalf.local.home> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260528151023.00f5ec4e@gandalf.local.home> X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=L4MtheT8 c=1 sm=1 tr=0 ts=6a194e41 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=kj9zAlcOel0A:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=meVymXHHAAAA:8 a=JHi4FkbiIRko9ia7NpwA:9 a=CjuIK1q_8ugA:10 a=2JgSa4NbpEOStq-L5dxp:22 X-Proofpoint-ORIG-GUID: bKpieZLL6prBYOtPU8OUCX4n4xg7100e X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI5MDA3OCBTYWx0ZWRfX8FSLPHD4t+RR mMX3xIpIFspAD6pvmEH64fxuxOFaZebMHBKxC1/NEba/SK4W2tMIvVkUwEMByTwaF5oaO+4Na8t LMJzp4vAiADBiov4C4DNfYp5/Y0BBDYPflih8CQzU1xpBDrbeU9ZD4XCJWRYSkvkSan1fL4sN1e dfVlMp9Il/c3tulCeQ4ZKoxMKGzshh2GFxFIuxKAG+LBrZPG3Ck4ClldIL9H86+3vSx3Am47KUO 7xuukOZ6AEvZ9RnFnOdZrFUj4CZkp1hkegxH2XfzDKdem3rrPvdOWoT8Q8Slp0VZGLPAT3dImmt /ncvgrRZRWC5l4YOvJRwd+dDp/fw71q8wF967DeC7XsqiyDn9EcPKMAZIl+aJ77SdOIoWDzbJyy fkhcM7MEdjpaazm3PokQmLxWwTzI6fNDDrTGJENn/LC7NLP0c4QjwRY4rIf2UuA8xHmpRHyDFPv +hxwHP/CLAPMFMvnbtw== X-Proofpoint-GUID: X9uleG4BCnUStnmV7cUzFy92hiRdtqkl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-05-29_02,2026-05-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 lowpriorityscore=0 suspectscore=0 clxscore=1011 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605210000 definitions=main-2605290078 On Thu, May 28, 2026 at 03:10:23PM -0400, Steven Rostedt wrote: > From: Steven Rostedt > > Add system calls to register and unregister sframes that can be used by > dynamic linkers to tell the kernel where the sframe section is in memory > for libraries it loads. ... > diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl > index 09a7ef04d979..52519e2acdc8 100644 > --- a/arch/s390/kernel/syscalls/syscall.tbl > +++ b/arch/s390/kernel/syscalls/syscall.tbl > @@ -398,3 +398,6 @@ > 469 common file_setattr sys_file_setattr > 470 common listns sys_listns > 471 common rseq_slice_yield sys_rseq_slice_yield > +472 common stacktrace_setup sys_stacktrace_setup > +472 common sframe_register sys_sframe_register > +473 common sframe_unregister sys_sframe_unregister What is stacktrace_setup? And why only for s390? Looks like a leftover.