From nobody Tue Sep 22 15:41:48 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 4hq48X51XFz6sNXs for ; Tue, 22 Sep 2026 15:41:48 +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 4hq48X3Zgdz4vBR for ; Tue, 22 Sep 2026 15:41:48 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790091708; 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=2NLZbcoitkkrRcXlmtt9yqxXaxJrGFf1jPAbnXaYon8=; b=Qy7CSkFVJyt8MyWKfLcM4IgQQC1GBiOH5V1F0u5ox9HXt6tFHiuoAJOD93yl3VzWv4Bj5X qGe8c2vm7HoqQgiHDdpeFoZnXAJjm4h7BYio+uo7Ipv1cD6f0k3yzbqWUZw16TJQwdS55f BiU9sx3jd2Od9q0R4lgfcTwTZ1fPbJtIqGEhHWF6RTxHhKGA0403DLKW9zSKrvFRm5Cwm2 OErSBBITOH1AfSA4HFsLHpV9oq9x9ltPTa8m8rbahFQF5vAgTdek3Rxq38BrhHqWuHap3B lL7+8sn9P5S6DYUbbSAGN7c286x/bNDCWKLY/tAdM2zA/rnEtjHHLInGFRINyA== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1790091708; b=QPUtlNbXdbS43VqL/ATVZ3iJRUEFgceSoNszw4rvj8j/AJ13bexlcLF47/vU+5MYb+9zo1 7kRGDnr/a80u4ygzLPDhuqNdwlF1qTvSTQMxdPxsqwSrRlSVo7miJ/BlJITDE1BHB+T53j H+J8vuwIalFSFnRIZnaNAXOXUF6ZxtXIvQqFsvQsQFTHDSDRnVRASNdk8d4wIpme12prkL QFSi0by8rQzPwZZUHXEAAt2HWkzneYeoGytCjndD7tICydpnBJlAokBbZ0ZmnCHBGfgRe6 RG8RO8KH/mJcIi5IGIo2Fe95e6kWH+EihCjZmrHw0cYXjq0rGt1qL/i/P2PHUA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790091708; 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=2NLZbcoitkkrRcXlmtt9yqxXaxJrGFf1jPAbnXaYon8=; b=WBcs0zI6VkD1oSHrsYBqwDpW6lV2SSd/CFFwCXaCyixwIri8c2gPP4Z2sNocwDdsaqUhfc YlkoPZM5Td6oz+VnmdEz/77nQssHVIvkEx0mNvEiBqRZb7snzD5e13RRFaM57/aBizRhzd ++afKMJiQMiONbNNaVhPgfby7K/jHkXnYc76iqGGHAecvSd14najV56jmj8H+xRMh8pmrY 0o002DO3W+HzSNYmciclrNIPGqas8tlTiOPQ8qs0+bWg+9U7aDuHfgZMSda46tAMUaz3zx I4BA2FfuStu+XtBmc6gT0RClgszuuHHjhqWBY5WoY3+7f5C9vABg7KiieR1uxQ== 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 4hq48X2fh8z1CCh for ; Tue, 22 Sep 2026 15:41:48 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 348c2 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 22 Sep 2026 15:41:48 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: c6d7235ac15d - main - amd64: handle #AC in kernel mode 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: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: c6d7235ac15d208435a839bf847dd898d9b1d9fe Auto-Submitted: auto-generated Date: Tue, 22 Sep 2026 15:41:48 +0000 Message-Id: <6ab2a1bc.348c2.284014e7@gitrepo.freebsd.org> The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=c6d7235ac15d208435a839bf847dd898d9b1d9fe commit c6d7235ac15d208435a839bf847dd898d9b1d9fe Author: Konstantin Belousov AuthorDate: 2026-09-20 16:40:15 +0000 Commit: Konstantin Belousov CommitDate: 2026-09-22 15:40:40 +0000 amd64: handle #AC in kernel mode Recover from it if PCB_ONFAULT handler is provided. Reviewed by: markj Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D59815 --- sys/amd64/amd64/trap.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sys/amd64/amd64/trap.c b/sys/amd64/amd64/trap.c index 815d356217f9..f3b06a419d07 100644 --- a/sys/amd64/amd64/trap.c +++ b/sys/amd64/amd64/trap.c @@ -532,6 +532,14 @@ trap(struct trapframe *frame) return; switch (type) { + case T_ALIGNFLT: + if (curpcb->pcb_onfault != NULL) { + frame->tf_rip = (long)curpcb->pcb_onfault; + return; + } + trap_fatal(frame, 0); + return; + case T_PAGEFLT: /* page fault */ (void)trap_pfault(frame, false, NULL, NULL); return;