From nobody Sun Oct 10 09:24:11 2021 X-Original-To: dev-commits-src-branches@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 AB45612DF096; Sun, 10 Oct 2021 09:24:13 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4HRxMJ4VhVz3MnY; Sun, 10 Oct 2021 09:24:11 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 5DA8A304E; Sun, 10 Oct 2021 09:24:11 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 19A9OBAt003362; Sun, 10 Oct 2021 09:24:11 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 19A9OBqh003361; Sun, 10 Oct 2021 09:24:11 GMT (envelope-from git) Date: Sun, 10 Oct 2021 09:24:11 GMT Message-Id: <202110100924.19A9OBqh003361@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: 682f5b938548 - stable/13 - amd64: consistently use uprintf() to report weird situations in sigreturn List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-branches@freebsd.org X-BeenThere: dev-commits-src-branches@freebsd.org 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/stable/13 X-Git-Reftype: branch X-Git-Commit: 682f5b938548fa842309b94a324fd5593d20613b Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=682f5b938548fa842309b94a324fd5593d20613b commit 682f5b938548fa842309b94a324fd5593d20613b Author: Konstantin Belousov AuthorDate: 2021-09-16 13:48:27 +0000 Commit: Konstantin Belousov CommitDate: 2021-10-10 09:21:17 +0000 amd64: consistently use uprintf() to report weird situations in sigreturn (cherry picked from commit 2e79a216329f62a78dbbc72256e782353e220968) --- sys/amd64/amd64/exec_machdep.c | 5 ++--- sys/amd64/linux/linux_sysvec.c | 6 ++++-- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/sys/amd64/amd64/exec_machdep.c b/sys/amd64/amd64/exec_machdep.c index 492aab177b9b..5c5132278cd0 100644 --- a/sys/amd64/amd64/exec_machdep.c +++ b/sys/amd64/amd64/exec_machdep.c @@ -197,9 +197,8 @@ sendsig(sig_t catcher, ksiginfo_t *ksi, sigset_t *mask) (xfpusave != NULL && copyout(xfpusave, (void *)sf.sf_uc.uc_mcontext.mc_xfpustate, xfpusave_len) != 0)) { -#ifdef DEBUG - printf("process %ld has trashed its stack\n", (long)p->p_pid); -#endif + uprintf("pid %d comm %s has trashed its stack, killing\n", + p->p_pid, p->p_comm); PROC_LOCK(p); sigexit(td, SIGILL); } diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c index 28fac2ea7452..e02221c324ec 100644 --- a/sys/amd64/linux/linux_sysvec.c +++ b/sys/amd64/linux/linux_sysvec.c @@ -525,7 +525,8 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args) * one less debugger trap, so allowing it is fairly harmless. */ if (!EFL_SECURE(rflags & ~PSL_RF, regs->tf_rflags & ~PSL_RF)) { - printf("linux_rt_sigreturn: rflags = 0x%lx\n", rflags); + uprintf("pid %d comm %s linux mangled rflags %#lx\n", + p->p_pid, p->p_comm, rflags); return (EINVAL); } @@ -535,7 +536,8 @@ linux_rt_sigreturn(struct thread *td, struct linux_rt_sigreturn_args *args) * other selectors, invalid %eip's and invalid %esp's. */ if (!CS_SECURE(context->sc_cs)) { - printf("linux_rt_sigreturn: cs = 0x%x\n", context->sc_cs); + uprintf("pid %d comm %s linux mangled cs %#x\n", + p->p_pid, p->p_comm, context->sc_cs); ksiginfo_init_trap(&ksi); ksi.ksi_signo = SIGBUS; ksi.ksi_code = BUS_OBJERR;