From nobody Fri Feb 04 12:01:15 2022 X-Original-To: bugs@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 53F8E198C64C for ; Fri, 4 Feb 2022 12:01:15 +0000 (UTC) (envelope-from bugzilla-noreply@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 4JqvJW0W15z4Z6p for ; Fri, 4 Feb 2022 12:01:15 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 E61B82FAB for ; Fri, 4 Feb 2022 12:01:14 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 214C1Exu013578 for ; Fri, 4 Feb 2022 12:01:14 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 214C1Ekp013577 for bugs@FreeBSD.org; Fri, 4 Feb 2022 12:01:14 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 261690] NFSv4 mount on Linux client hangs during complex access patterns (gcc bootstrapping on client) Date: Fri, 04 Feb 2022 12:01:15 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 13.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: bf@cebitec.uni-bielefeld.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1643976075; 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: in-reply-to:in-reply-to:references:references; bh=YWqPC8NTx7hkIyH2yLXie6AYa/bWpenak+diiH3Krpc=; b=iMQ85XkViDbXfQT/Y8eEuKQDFuvQC7wj1H03f1WqsWGDcK0crFhjY9+jdzPDrDiDOt3t4E ubiHwbQ/vgYw4d3Y0QsDllRJ1UcIQAIlEhiJ/Be/l0CtODf2nqZhZ9loPbuSJZsmUhSNcj c5w5cSS5hvPugk1yyt767Z507Eg8thSf503b/WS2YacP4Xch9DmZCDlUccMRnElggm9l1m oWnGPbCWpC3hUwpJnaq6ZE3TqFRGSixdrsz20iEggGaOuX88ScmV8JWnIbIaDXk4zaCqJc 64Fqd46EfmVdi6orpieEqKMhS8bDmwZ/TI69MVyF282Rh1kbRpF6dQtXLL0IXg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1643976075; a=rsa-sha256; cv=none; b=JhG9ImHoi6GLnTe6DP9wX3pR80Fum/p9yX6aTTciAcHafIuWdfbpUDcUsqGmX1DuM8gvb7 y28OMHSCp2tYRp1ZmbmE8nDH2gt01D9LTT1hyMHShbd1wP+r/EbdIFAUZc1lNiRFEH4FRJ A8+sVVSNwax1cpBfRpPJ1jKDRI/4Fh3le1d/7s3VwLj+9UKA//6cwA9mtgrohwEdZE6Hq7 Tn6EdYEJqRc1AlCQsREuSoBw4fAXRbVw7aghT3YLZLFI3uiWowDfGxeA3ko2wULLLMszpk VTf/Xt7eeuTBPXjuCXhXUqOZuH34GOiI3PSI5EnM8kHPXIElH42RlMh4y5SqBg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D261690 --- Comment #1 from Bj=C3=B6rn Fischer --- Ok, I found a way to trigger the problem with this silly perl script on the Linux client, so no need to pull off a complete GCC bootstrap: #!/usr/bin/perl use strict; use warnings; use threads; use IO::Handle; use Fcntl qw(SEEK_SET SEEK_CUR SEEK_END); my $testfile =3D 'testfile'; my $thread =3D {}; map { $thread->{$_} =3D threads->create( sub { open(my $fh, '+>', $testfile) or die "Can't open +> $testfile: $!"; my $id =3D $_; map { seek $fh, int(rand(1024*4096)), SEEK_SET; print $fh 'foobar' x (500 + int(rand(4000))); $fh->flush(); } (0..10000); close $fh; } ) } (0..1000); map { $thread->{$_}->join(); } (0..1000); --=20 You are receiving this mail because: You are the assignee for the bug.=