From nobody Tue Sep 15 14:06:59 2026 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hkkNS5bH5z6sGxT for ; Tue, 15 Sep 2026 14:07:04 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hkkNS54Nlz4GdW for ; Tue, 15 Sep 2026 14:07:04 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789481224; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=OXFUPVA9ffxV8u0l+KLMAYKsXSeX5NKBMi6cDe9UF8w=; b=YIXKBy7372bpBTIyJe1FLJlJ2N8jJSszsb18lhVdpK1W458zbimliwONP1u6G1RPrt++lY iGLkxJFJjGLX4R82oQ+eEjmycxurIbpY7uNAG6LRLYDQOWEd0G+WJQmdWW/GKayxHWSwOr tsPor0AJLNtCH1HblhKVUYHLiVg810ZtI7duQK+NfteDjb6Fms1fI2vhByBUO6sYGsJCrg mo6OHS7cLrftyTV/dzE4usiz0x9b0oo/BgIK9MgyvfehqRwOtPAGGhFTa4545PlRiRNjJb EniDzBSNKq0TvPzzyX+kSlnwzntaqHTuWEd52d/wZqTYtqEbhy88x1rYv84vTA== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1789481224; b=sme1ehtxmHt+/7vpiloebCF+qRw+UBBb3BBIkLtXrCv1KJLoZhAq1t/XYsQvFbDkvPGSFn XQoJqyPV+4UDUrXWEeXkYpdr/kyLV6kQuYImiym+dN+6Y0AoDJhbvmPGNCY8fAm20ZzLBr 6D0J09VOtKvGs96+IKDJtVMo7DnvVCi0u6Rt4/2jqtAbKZ809Ty9113P1/T1YMCUK+vdUI dOav6o6/I7sz0OFav0adgh1k4Qy2MlDgfWoZVKv9obY2YLX3OfEnLvDNAPmZQ/SV4gbMKG a5v4xFQ+BkI1QtEr4tF953Mgc60kK3yOyTGzfeM44qFTCvxLDzrMp6ujiVQmUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789481224; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=OXFUPVA9ffxV8u0l+KLMAYKsXSeX5NKBMi6cDe9UF8w=; b=XuhChgUiF0tekdpLBOMgzBKoPm9lvn+O/aguE4AT49NLHdkkkGPAaaTPf4MOg3zFOdRjSq R0QnjkiktrZU9JvVKbqdmfZAZ5yDYTzmOZRPg5lJccmGbg1nwY5YCn2qX8XmT/cI7GFimH 0pTV+gykQuLm2LcjEUxMiEJAa43GpcdQ2rqJ8w2/hpOv8ILm4nHDfWh/GkwFff33HIWIi4 KQFpNnzHI/p1UKCfkINHgrNStFpPsQcNyLcgoj23qE2zFAI3/7qG/RL8i16kfxRPykhTqm rAkqd0i8iJkGTftz8+BG7fp8bJvyExl8Jz5/NUR9weYG4Iqma3OiQrOs0vMZbw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hkkNS48fSz13c8 for ; Tue, 15 Sep 2026 14:07:04 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 32f1a by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 15 Sep 2026 14:06:59 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Minsoo Choo Subject: git: 99ed9753a5c5 - main - riscv: Preserve savectx return address with vector support List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: mchoo X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 99ed9753a5c5c5262a0ed1464c701cde174b55fd Auto-Submitted: auto-generated Date: Tue, 15 Sep 2026 14:06:59 +0000 Message-Id: <6aa95103.32f1a.240b54e9@gitrepo.freebsd.org> The branch main has been updated by mchoo: URL: https://cgit.FreeBSD.org/src/commit/?id=99ed9753a5c5c5262a0ed1464c701cde174b55fd commit 99ed9753a5c5c5262a0ed1464c701cde174b55fd Author: Minsoo Choo AuthorDate: 2026-09-15 01:13:31 +0000 Commit: Minsoo Choo CommitDate: 2026-09-15 14:06:40 +0000 riscv: Preserve savectx return address with vector support Calling vector_state_store_savectx() overwrites ra with the address of the following ret instruction. The ret consequently branches to itself and prevents kernel dumps from progressing past dump_savectx(). Tail-call vector_state_store_savectx() so that it returns directly to the original savectx() caller. Reviewed by: br, jrtc27 Approved by: jrtc27 Fixes: d7a393095cfd ("riscv: Vector Extension (RVV) support.") Sponsored by: FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D59689 --- sys/riscv/riscv/swtch.S | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sys/riscv/riscv/swtch.S b/sys/riscv/riscv/swtch.S index b7b2e1ec9dd3..0c14bb9669ab 100644 --- a/sys/riscv/riscv/swtch.S +++ b/sys/riscv/riscv/swtch.S @@ -505,6 +505,5 @@ ENTRY(savectx) sd s11, (PCB_S + 11 * 8)(a0) __fpe_state_save a0 - call _C_LABEL(vector_state_store_savectx) - ret + tail _C_LABEL(vector_state_store_savectx) END(savectx)