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Tue, 5 May 2026 12:25:39 +0000 (GMT) Message-ID: <6eb9cbb6-c997-49ee-97a6-66a721073846@linux.ibm.com> Date: Tue, 5 May 2026 14:25:39 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v14 00/19] unwind_deferred: Implement sframe handling To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, x86@kernel.org, Steven Rostedt , Josh Poimboeuf , Indu Bhagat , Peter Zijlstra , Dylan Hatch , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Mathieu Desnoyers , Kees Cook , Sam James Cc: bpf@vger.kernel.org, linux-mm@kvack.org, Namhyung Kim , Andrii Nakryiko , "Jose E. Marchesi" , Beau Belgrave , Florian Weimer , "Carlos O'Donell" , Masami Hiramatsu , Jiri Olsa , Arnaldo Carvalho de Melo , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Heiko Carstens , Vasily Gorbik , Ilya Leoshkevich References: <20260505121718.3572346-1-jremus@linux.ibm.com> Content-Language: en-US From: Jens Remus Organization: IBM Deutschland Research & Development GmbH In-Reply-To: <20260505121718.3572346-1-jremus@linux.ibm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Authority-Analysis: v=2.4 cv=XPQAjwhE c=1 sm=1 tr=0 ts=69f9e1c9 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VwQbUJbxAAAA:8 a=VnNF1IyMAAAA:8 a=lNt1pmmDVPWPLV_8P3QA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: PLhVfBiZn-aSt5WckmzZBbYhLO1gOr68 X-Proofpoint-GUID: ybGT5PYqAhNLFmbquT73cbhc8mA2NIVX X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA1MDExNCBTYWx0ZWRfX4WxFhGafDnwu h4Uo06QecP4Z+vTG+IBqEHK5gaPO6wxJxl9Xj3y/JBtxdsWpyGnyFFBxbKKoXMRx0aBFnzT0fJ+ qkv+m8GgjVrSCFRe1VR26p5tq3ifVWviMJmFQ70DVSLUr4OILE9VSOybjGa2u76pBb6+4wnLBHN 9LMzeJ13JPvZmu6Bqieop9zrVlm7hAV4jNqEUTdM6Zbx1UkfjLo3m2ZR87T+L+kM7oHML4EnfCS DRH6KcksTuS8yfL3/sXkVP8UnNXurhrYUK1pVWKyahQQQrJPL5lnBIHMNq8cyum5XYYVFxpP3Vb hKX8V8cpgTm/cqtriKD4P/FZp/uWa9+7d1ZE7AO8b1JIkaqqXg/Cpm6Stnmyzr/YugH0hAk6l0f Vk8cUNNr24eRLvwuAHY+vf+Y/JeEUjYBxDvzXGcRmc7oQ8YdpP4hFApjPJEEv0tZP0kiKBfk1Pa R0bLN4WHhLyjB+DpeDA== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-05_02,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 spamscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605050114 X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 0F439140006 X-Stat-Signature: 7a97q58fk8zxcgah7wbhewe17ufnb84j X-Rspam-User: X-HE-Tag: 1777983964-973144 X-HE-Meta: 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 7anhwUwA KeqVZHgtfuHy4d0EGqQ7Uwlel8UxMKiMj8eVlLweT5DtMfPh/kox5yIijxBoUtal54OEVuThhZ0Dj+AG/kAvh1vrDIS5aQ7gKoh1ky0Jkpn+zjyovfE3ZMDHmTupJoBgeRXSfW1m5Q4Q6Wl5dtqEk2Pvu+8l19IuTJld7jQURqNr18h1HkTJzmn0jfcxr2NTjYVwTyt4O0fOfdk6PuobA1xTTgeKkiWEmN8rK+GvAGCZXA6YDtOPuZ62hHVutorX03urfh45C9F2/NaLoPScaBOjEr3lT0XFYM0Gc4clj/y32I4Hz0nic5nlPkfr5VFPxwxn3IsioqlhF1xYshbZVi4rs4H8g/8Ay/0rXV/BA0rUrIGYYAk/ubZ6fNT0lKfNZWq+I Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 5/5/2026 2:16 PM, Jens Remus wrote: > This is the implementation of parsing the SFrame V3 stack trace information > from an .sframe section in an ELF file. It's a continuation of Josh's and > Steve's work that can be found here: > > https://lore.kernel.org/all/cover.1737511963.git.jpoimboe@kernel.org/ > https://lore.kernel.org/all/20250827201548.448472904@kernel.org/ I forgot to mention that Steven is working on a system call for dynamic linkers to register .sframe for .text in dynamic libraries (DSOs), that is supposed to replace the last test-patch of this series. Feedback on that is much appreciated as well: [RFC][PATCH] unwind: Add stacktrace_setup system call https://lore.kernel.org/all/20260429114355.6c712e6a@gandalf.local.home/ Regards, Jens -- Jens Remus Linux on Z Development (D3303) jremus@de.ibm.com / jremus@linux.ibm.com IBM Deutschland Research & Development GmbH; Vorsitzender des Aufsichtsrats: Wolfgang Wendt; Geschäftsführung: David Faller; Sitz der Gesellschaft: Ehningen; Registergericht: Amtsgericht Stuttgart, HRB 243294 IBM Data Privacy Statement: https://www.ibm.com/privacy/