From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, URIBL_DBL_BLOCKED_OPENDNS,URIBL_ZEN_BLOCKED_OPENDNS autolearn=ham autolearn_force=no version=3.4.4 Received: from txout-a3-smtp.messagingengine.com (txout-a3-smtp.messagingengine.com [103.168.172.226]) by inbox.vuxu.org (Postfix) with ESMTP id D03EF273C1 for ; Mon, 5 Jan 2026 20:52:29 +0100 (CET) Received: from localhost.localdomain (phl-topicbox-02.internal [10.202.2.220]) by mailtxout.phl.internal (Postfix) with ESMTP id 4E7721C01D5 for ; Mon, 5 Jan 2026 14:52:28 -0500 (EST) ARC-Authentication-Results: i=2; topicbox.com; arc=pass; dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=fo3n+miq header.a=rsa-sha256 header.s=20230601 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; spf=pass smtp.mailfrom=rminnich@gmail.com smtp.helo=mail-lf1-f54.google.com; x-internal-arc=fail (as.1.topicbox.com=pass, ams.1.topicbox.com=fail (message has been altered)) (Message modified while forwarding at Topicbox) ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d= topicbox.com; h=mime-version:references:in-reply-to:from:date :message-id:subject:to:content-type:list-help:list-id:list-post :list-subscribe:reply-to:content-transfer-encoding :list-unsubscribe; s=sysmsg-1; t=1767642748; bh=KguURWh5DvNfjYgX 6cJP4KgI1GNBU5b7yfiWuXgv8bo=; b=bI5rsRxQQQ9IKfy20A5TGW+d4c8TBlMW /x1Y9tzCUpDvEwTsq6wnG1UFOsbXR1fdhXzkWIskUA7utS0wqaKT4Y3BxujjDMIC e4qXdsq02roHK+WodrXzdWrAKfX8Gh8rMB1kb1iZGozqpsMBNbOztA6zXJULHy5H E9LI6nm8cVw= ARC-Seal: i=2; a=rsa-sha256; cv=pass; d=topicbox.com; s=sysmsg-1; t= 1767642748; b=tKw3OULvZKt2T1iQmAXd7zoilEm6v7egUDfMbrS6HaRoPA3fPN jbhsXASE+3jLgw3bQQVu4dYEDn+n2O5cLURJcWJ2eTQNr7JMVzZ0nfa0A/Us2nfF FjUJGm0F0wzJaSQj6TbJ7/63FyaiKmZ7cdqOvq5CAd66zYc1FfcK8YYuA= Authentication-Results: topicbox.com; arc=pass; dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=fo3n+miq header.a=rsa-sha256 header.s=20230601 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; spf=pass smtp.mailfrom=rminnich@gmail.com smtp.helo=mail-lf1-f54.google.com; x-internal-arc=fail (as.1.topicbox.com=pass, ams.1.topicbox.com=fail (message has been altered)) (Message modified while forwarding at Topicbox) X-Received-Authentication-Results: authmilter.topicbox.com; arc=none (no signatures found); bimi=skipped (DMARC Policy is not at enforcement); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=fo3n+miq header.a=rsa-sha256 header.s=20230601 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; iprev=pass smtp.remote-ip=209.85.167.54 (mail-lf1-f54.google.com); spf=pass smtp.mailfrom=rminnich@gmail.com smtp.helo=mail-lf1-f54.google.com; x-aligned-from=pass (Address match); x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=CjOW8wQi; x-me-sender=none; x-ptr=pass smtp.helo=mail-lf1-f54.google.com policy.ptr=mail-lf1-f54.google.com; x-return-mx=pass header.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com); x-return-mx=pass smtp.domain=gmail.com policy.is_org=yes (MX Records found: alt4.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,gmail-smtp-in.l.google.com); x-tls=pass smtp.version=TLSv1.3 smtp.cipher=TLS_AES_128_GCM_SHA256 smtp.bits=128/128; x-vs=clean score=0 state=0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed; d=9fans.net; h= mime-version:references:in-reply-to:from:date:message-id:subject :to:content-type:list-help:list-id:list-post:list-subscribe :reply-to:content-transfer-encoding:list-unsubscribe; s=dkim-1; t=1767642748; x=1767729148; bh=lZnSap7iXt62jO6veqRVC0T788FVrbGV jpW2D6zWzFY=; b=R4g/ytmjPEIVkg5IB/6DpsMNjVCF+33GLzC0rmGkIqLdBh/1 MM9k+Ss5krM9kSeIWyOknCRf84WXFWa4HjtfUZakXEcyJMSzTG0YvmTa97f97WkD 9qldy2CmgcRKpcQRma7ZHIpEfQin/8RBL4+/VYCXhL8Nb80zpAuL1HmTZBg= Received: from authmilter.topicbox.com (unknown [172.17.0.1]) by mx.topicbox.com (Postfix) with ESMTP id CED2535CE387 for <9fans@9fans.net>; Mon, 5 Jan 2026 13:44:47 -0500 (EST) Received: from mx.topicbox.com (172.17.0.1 [172.17.0.1]) by authmilter.topicbox.com (Authentication Milter) with ESMTP id 6F7846C30A6; Mon, 5 Jan 2026 13:44:47 -0500 ARC-Seal: i=1; a=rsa-sha256; cv=none; d=topicbox.com; s=arcseal; t= 1767638687; b=U86y0DdU+AViH98D1blceZ+wXWJKoEpZyMDMD0FzvMEsdWgAd9 0LK/YUY+I2IBZx6mryVTpPc9RYAT7GX/QM/mOL8LY7g21n3F2phy0EYCSPwz9l+v eCZpN1+vsrgvprJ1EYP6IwkRfJfb+CEnN2ketq/K66wyQluJ8qa5m/RYE0QohDM0 F4llAMOzJqjW+yiRsjSjnvY0W5vcvYY1PzILMF7xXMW98TGh/R1xCOmW+E7Kw18A 3m8YM8bF4RKokMedNCxKvVF9u1omNEjM0FFTpMQ/Y9h6dxgveEF43iFxbZsCsii3 8xDfqls0jrwmAyMjw90bDBwktF+8vqQaDH7w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= topicbox.com; h=mime-version:references:in-reply-to:from:date :message-id:subject:to:content-type; s=arcseal; t=1767638687; bh=Vr/0PFSHWV56d154WbuLNHn07Ov6+jOf8bLIaUEZuWI=; b=K3iXjOgqHABb k3fgwFq0BtQSCbg6BpHYgd242dr0zgk/aFyU1mwMoPwE2yk3ZaK9EqC3Oefl52HK mpyCx2OwoU/vkEa81Ad16Lroc1A4/HZQk9C6jqVkNbPWj/GAIYPDvItyR3VJtuPy u6L2CBv9h06WMrU5cy/ZUK1wSsKAkdUGjsJ9QCev2y0eMUf338o82QVd0Ayj/gNJ gXqywXRit2K5/OEQLfmSMxLn715y6ox+ABSJV3y7aZ0l6rqseNBd2VCQikqgvLhP XeO9OabLVkj1HQjnUhMGZa7ioL8FhqJMzqUS9y2cF8O4O6rp9N3Vtxw9JLSaEDJj VzvbmBT+gg== ARC-Authentication-Results: i=1; authmilter.topicbox.com; arc=none (no signatures found); bimi=skipped (DMARC Policy is not at enforcement); dkim=pass (2048-bit rsa key sha256) header.d=gmail.com header.i=@gmail.com header.b=fo3n+miq header.a=rsa-sha256 header.s=20230601 x-bits=2048; dmarc=pass policy.published-domain-policy=none policy.published-subdomain-policy=quarantine policy.applied-disposition=none policy.evaluated-disposition=none (p=none,sp=quarantine,d=none,d.eval=none) policy.policy-from=p header.from=gmail.com; iprev=pass smtp.remote-ip=209.85.167.54 (mail-lf1-f54.google.com); spf=pass smtp.mailfrom=rminnich@gmail.com smtp.helo=mail-lf1-f54.google.com; x-aligned-from=pass (Address match); x-google-dkim=pass (2048-bit rsa key) header.d=1e100.net header.i=@1e100.net header.b=CjOW8wQi; x-me-sender=none; x-ptr=pass smtp.helo=mail-lf1-f54.google.com policy.ptr=mail-lf1-f54.google.com; x-return-mx=pass header.domain=gmail.com policy.is_org=yes (MX Records found: gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com,alt4.gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com); x-return-mx=pass smtp.domain=gmail.com policy.is_org=yes (MX Records found: alt4.gmail-smtp-in.l.google.com,alt3.gmail-smtp-in.l.google.com,alt1.gmail-smtp-in.l.google.com,alt2.gmail-smtp-in.l.google.com,gmail-smtp-in.l.google.com); x-tls=pass smtp.version=TLSv1.3 smtp.cipher=TLS_AES_128_GCM_SHA256 smtp.bits=128/128; x-vs=clean score=0 state=0 X-ME-VSCause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgdelkedthecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpggftfghnshhusghstghrihgsvgdp uffrtefokffrpgfnqfghnecuuegrihhlohhuthemuceftddtnecunecujfgurhepgghfjg fhfffkuffvtgesrgdtreertddtjeenucfhrhhomheprhhonhcumhhinhhnihgthhcuoehr mhhinhhnihgthhesghhmrghilhdrtghomheqnecuggftrfgrthhtvghrnhepfeffjeeiff dvgeduhffhffdtveelgfejudektdffffffhfffieefvedthedtteelnecuffhomhgrihhn pehgihhthhhusgdrtghomhdpmhhkfihsrdhshhdpthhophhitggsohigrdgtohhmnecukf hppedvtdelrdekhedrudeijedrheegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghr rghmpehinhgvthepvddtledrkeehrdduieejrdehgedphhgvlhhopehmrghilhdqlhhfud dqfhehgedrghhoohhglhgvrdgtohhmpdhmrghilhhfrhhomhepoehrmhhinhhnihgthhes ghhmrghilhdrtghomheqpdhnsggprhgtphhtthhopedupdhrtghpthhtohepoeelfhgrnh hsseelfhgrnhhsrdhnvghtqe X-ME-VSScore: 0 X-ME-VSCategory: clean Received-SPF: pass (gmail.com ... _spf.google.com: Sender is authorized to use 'rminnich@gmail.com' in 'mfrom' identity (mechanism 'include:_netblocks.google.com' matched)) receiver=authmilter.topicbox.com; identity=mailfrom; envelope-from="rminnich@gmail.com"; helo=mail-lf1-f54.google.com; client-ip=209.85.167.54 Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Mon, 5 Jan 2026 13:44:47 -0500 (EST) Received: by mail-lf1-f54.google.com with SMTP id 2adb3069b0e04-594270ec7f9so215351e87.3 for <9fans@9fans.net>; Mon, 05 Jan 2026 10:44:47 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767638685; x=1768243485; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Vr/0PFSHWV56d154WbuLNHn07Ov6+jOf8bLIaUEZuWI=; b=CjOW8wQiYX7LM7b5sgndSaa9om7ckC4Hz3voIkkZ1Pg9haoW6+S5gZaKO6jewtsiLO UCtGIJkuWiI+tNTKDLv69N37Wz3e8fLxNNrKbf2x8ARVpBDZm9/b50Qw+HXbF3OZlDNR iLc+BJHNJWaSlCVeOzXS+xqBOzvfFt4+t91StdlzIX4PsUrWVzwgtdfUjlPDkXsUSFIv swh+3j3c45OopoxFM/r+dJZbPFUtlCzCfZ4jrYX7oJ5OEw6xDKMISYLTZGZAMmeZH4Vf 54HFQCfbtrks/x2DZuYHcBmd7+sF7l3dHNBu9K5eXQ+iPkF7HRpabZ4Yv3u++l7Vksj+ kCrw== X-Gm-Message-State: AOJu0Yy4cNFqnuJLPBHepOTQnO/hxfE9Eg7Qn9pAlo+uagsOmKVkB6lK iZY26otzPPjUPtM5o4d/BesWLcGDrHd4b2EGCAWMxIaysUXFY+0O71q4MtrFwL1P7djZNrnAhmN 4y+iEuIeuFE8vsYZ22r2NrUDvSRDVNAxh7v7x X-Gm-Gg: AY/fxX7NgE/IpOfWJp8wwJDxRAF0CgTqB+y7ZgN685fNn0MhtPwjleiLnb1xXhb2cgt jaTxEiF2DA2V0RM1nnjNl1qu6f7bk7EuIyazdIWtg27KHSenufqJxi/SbQ01jUq1YMkNpdps6OE Q1vMQw5FkRHBMwOxui1Z52wdwafTqNKKqnG6/oYRvHlGJOPouRM/H15zDzrFgRszgpOsyh79E8u 9X75DEZonMJAqs2cvgifBiJOUG+8sHLJqMvVwBCPW6K8uPwcRfTSFP+CttIlNmlLx2FLfyG X-Google-Smtp-Source: AGHT+IFmJETiq9WzHi/ZcoMOIAvDCrLLxCHVPxvGDpVtTCm55EUl7mPPYxgGYnWGboJdduAdzyjo6cjleroNzJpI88Q= X-Received: by 2002:a05:6512:3191:b0:598:eaf8:8f4f with SMTP id 2adb3069b0e04-59b65290262mr220845e87.17.1767638684816; Mon, 05 Jan 2026 10:44:44 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: ron minnich Date: Mon, 5 Jan 2026 10:44:32 -0800 X-Gm-Features: AQt7F2o7TDv2v04RAR05K7edYkY26B0AffPXVsWddwCpZ4pBtmP-6sKFZ7cLzxQ Message-ID: Subject: Re: [9fans] go floating point exception To: 9fans <9fans@9fans.net> Content-Type: multipart/alternative; boundary=000000000000e659950647a8739b Topicbox-Policy-Reasoning: moderate: sender is a member; group holds all messages Topicbox-Message-UUID: 9d0af790-ea66-11f0-94c4-c63710c0285f Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UYTQzZjcwOTgyYzZiYzAwOC1NMjQxNGQxNTQzNzQzYWZjMjgxN2E0?= =?UTF-8?B?YWJkPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Content-Transfer-Encoding: 7bit List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M2414d1543743afc2817a4abd:1:SYWzysZz0ixbGUFTqf4DGi-8DbiZRVQIsVSoq8rBBEY --000000000000e659950647a8739b Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable did you get a chance to check the value of mxcsr on 9legacy? On Mon, Jan 5, 2026 at 4:48=E2=80=AFAM wrote: > > I can't reproduce it. I'm using a macOS host, with qemu 10.1.2, Go > > 1.25.2 using rsc's 9legacy repo at > > https://github.com/rsc/plan9 > > (it is convenient for qemu; u9fs serves the local content so you can > > use host OS tools, etc.) > > > > I copied the binary over rsc's tree but can't reproduce it there either. > But it still happen on 9legacy installed from the iso. > I cross compiled it on arm with go version go1.25.4 plan9/arm > > I formatted another fossil file system with the snapshot after I installed > 9legacy from the iso, recompile kernel, etc (to make sure that there is > no Geoff stuff). It still suicide with both http binaries (the one you've > posted here and the one I sent earlier). > > (also, try running the fpnote test in rsc's /usr/glenda/src too, > it still fails many times). > > > Does it fail on startup or 50% of the time when you send a request? > > I use this modified Go http package example: > > > > package main > > > > import ( > > "log" > > "net/http" > > ) > > > > func main() { > > log.Fatal(http.ListenAndServe(":9000", > > http.FileServer(http.Dir("/sys/doc")))) > > } > > > > On Fri, Jan 2, 2026 at 6:23=E2=80=AFAM wro= te: > >> > >> Hello, > >> I don't know go, just have it to compile some programs. > >> I cross-compiled this http server from arm for amd64: > >> https://mkws.sh/https/https.go > >> > >> Running it on 9legacy/amd64 (under qemu) will raise this error 50% of > >> the time (otherwise it works pretty well): > >> gohttp 177: suicide: sys: fp: Precision Exception mxcsr=3D0x20 pc=3D0x= 215443 > >> > >> Plan 9 > >> mmuinit: vmstart 0xfffffffff0000000 vmunused 0xfffffffff03cc000 > vmunmapped 0xfffffffff0400000 vmend 0xfffffffffe000000 > >> sys->pd 0x108003 0x108023 > >> l 3 0xffffff7fbfdfeff8 107023 > >> l 2 0xffffff7fbfdffff8 108023 > >> l 1 0xffffff7fbffffc00 e3 > >> l 1 0xffffff7fbffffc00 e3 > >> base 0xfffffffff03d0000 ptr 0xfffffffff03d0000 nunits 14430208 > >> physalloc color=3D0 base=3D0xe000000 size=3D0x71fe0000 > >> apic0: hz 998949300 max 9989493 min 99894 div 3 > >> intrenable: nil handler for 11, tbdf 0xc001800 for ether0 > >> #l0: virtio10: 1Gbps port 0xfe000000 irq 11: 525400123456 > >> 2044M memory: 2800K+220M kernel, 1822M user, 0M lost > >> pickmethod...read #e/nobootprompt...pickmethod done > >> bind #=C3=A6...bind #S...partinit...part plan9 63 67103505 > >> p9part /dev/sdC0/data plan9 > >> part 9fat 63 204863 > >> part nvram 204863 204864 > >> part fossil 204864 10573102 > >> part arenas 10573102 62414293 > >> part isect 62414293 65006353 > >> part bloom 65006353 65530641 > >> auth...mount usbd...can't open /srv/usbtime... > >> venti...2026/0102 11:36:29 venti: conf.../boot/venti: mem 2,236,962 > bcmem 4,473,924 icmem 6,710,886...httpd tcp!127.1!8000...init...icache > 6,710,886 bytes =3D 66,728 entries; 4 scache > >> sync...announce tcp!127.1!17034...serving. > >> fossil(#S/sdC0/fossil)...fsys: dialing venti at tcp!127.1!17034 > >> version...can't stat /srv/partfs.sdXX: '/srv/partfs.sdXX' file does not > exist > >> > >> init: starting /bin/rc > >> secstore > >> mkvbe: '/dev/realmode' file does not exist > >> aux/vga: controller not in /lib/vgadb, not vesa > >> 0xC0000 55 AA 4D E9 90 55 CC 00 00 00 00 00 00 00 00 00 > U.M..U.......... > >> 0xC0010 00 00 00 00 00 00 00 00 5C 98 00 00 00 00 49 42 > ........\.....IB > >> 0xC0020 4D 00 2E 8B 16 E8 98 85 D2 74 01 EE C2 02 00 84 > M........t...... > >> 0xC0030 C0 74 34 66 55 66 89 E5 66 53 66 89 C3 66 B8 00 > .t4fUf..fSf..f.. > >> 0xC0040 40 00 00 FE CB 74 37 66 0F B7 D2 66 0F B7 C9 66 > @....t7f...f...f > >> 0xC0050 0F AF D1 66 C1 FA 03 66 89 D0 9C 66 05 FF 1F 00 > ...f...f...f.... > >> 0xC0060 00 9D 25 00 E0 EB 17 0F AF CA 66 89 C8 9C 66 D1 > ..%.......f...f. > >> 0xC0070 E0 66 05 FF 07 00 00 9D 25 00 F8 C2 02 00 66 5B > .f......%.....f[ > >> 0xC0080 66 5D C2 02 00 66 55 66 89 E5 66 56 66 53 66 89 > f]...fUf..fVfSf. > >> 0xC0090 C6 66 89 D3 66 89 CA 67 66 8B 4D 08 67 8A 45 0C > .f..f..gf.M.g.E. > >> 0xC00A0 66 C1 E6 10 66 0F B7 DB 66 09 F3 66 31 F6 8E C6 > f...f...f..f1... > >> 0xC00B0 26 66 89 1E 0C 01 80 F9 01 74 0D 80 F9 03 74 0C > &f.......t....t. > >> 0xC00C0 84 C9 74 0A B0 19 EB 06 B0 0E EB 02 B0 2B 66 B9 > ..t..........+f. > >> 0xC00D0 40 00 00 00 8E C1 66 48 26 A2 84 00 8E C1 66 0F > @.....fH&.....f. > >> 0xC00E0 B6 D2 26 89 16 85 00 66 5B 66 5E 66 5D C2 02 00 > ..&....f[f^f]... > >> 0xC00F0 66 55 66 89 E5 66 57 66 56 66 53 66 53 66 89 C3 > fUf..fWfVfSfSf.. > >> aux/vga: main: vga@1024x768x1 not in /lib/vgadb > >> rio: can't open display: initdisplay: /dev/draw/new: no frame buffer > >> init: rc exit status: rio 41: display open > >> > >> init: starting /bin/rc > >> term% > >> ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Ta43f70982c6bc008-M2414d= 1543743afc2817a4abd Delivery options: https://9fans.topicbox.com/groups/9fans/subscription --000000000000e659950647a8739b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
did you get a chance to check the value of mxc= sr on 9legacy?

=
On Mon, Jan 5, 2026 at 4:48 AM= <hahahahacker2009@gmail.c= om> wrote:
> I can't reproduce it= . I'm using a macOS host, with qemu 10.1.2, Go
> 1.25.2 using rsc's 9legacy repo at
> https://github.com/rsc/plan9
> (it is convenient for qemu; u9fs serves the local content so you can > use host OS tools, etc.)
>

I copied the binary over rsc's tree but can't reproduce it there ei= ther.
But it still happen on 9legacy installed from the iso.
I cross compiled it on arm with go version go1.25.4 plan9/arm

I formatted another fossil file system with the snapshot after I installed<= br /> 9legacy from the iso, recompile kernel, etc (to make sure that there is
no Geoff stuff). It still suicide with both http binaries (the one you'= ve
posted here and the one I sent earlier).

(also, try running the fpnote test in rsc's /usr/glenda/src too,
it still fails many times).

> Does it fail on startup or 50% of the time when you send a request? > I use this modified Go http package example:
>
> package main
>
> import (
>     "log"
>     "net/http"
> )
>
> func main() {
>     log.Fatal(http.ListenAndServe(":9000", > http.FileServer(http.Dir("/sys/doc"))))
> }
>
> On Fri, Jan 2, 2026 at 6:23 AM <hahahahacker2009@gmail.com> wrot= e:
>>
>> Hello,
>> I don't know go, just have it to compile some programs.
>> I cross-compiled this http server from arm for amd64:
>> https://mkws.sh/https/https.go
>>
>> Running it on 9legacy/amd64 (under qemu) will raise this error 50%= of
>> the time (otherwise it works pretty well):
>> gohttp 177: suicide: sys: fp: Precision Exception mxcsr=3D0x20 pc= =3D0x215443
>>
>> Plan 9
>> mmuinit: vmstart 0xfffffffff0000000 vmunused 0xfffffffff03cc000 vm= unmapped 0xfffffffff0400000 vmend 0xfffffffffe000000
>> sys->pd 0x108003 0x108023
>> l 3 0xffffff7fbfdfeff8 107023
>> l 2 0xffffff7fbfdffff8 108023
>> l 1 0xffffff7fbffffc00 e3
>> l 1 0xffffff7fbffffc00 e3
>> base 0xfffffffff03d0000 ptr 0xfffffffff03d0000 nunits 14430208
>> physalloc color=3D0 base=3D0xe000000 size=3D0x71fe0000
>> apic0: hz 998949300 max 9989493 min 99894 div 3
>> intrenable: nil handler for 11, tbdf 0xc001800 for ether0
>> #l0: virtio10: 1Gbps port 0xfe000000 irq 11: 525400123456
>> 2044M memory: 2800K+220M kernel, 1822M user, 0M lost
>> pickmethod...read #e/nobootprompt...pickmethod done
>> bind #æ...bind #S...partinit...part plan9 63 67103505
>> p9part /dev/sdC0/data plan9
>> part 9fat 63 204863
>> part nvram 204863 204864
>> part fossil 204864 10573102
>> part arenas 10573102 62414293
>> part isect 62414293 65006353
>> part bloom 65006353 65530641
>> auth...mount usbd...can't open /srv/usbtime...
>> venti...2026/0102 11:36:29 venti: conf.../boot/venti: mem 2,236,96= 2 bcmem 4,473,924 icmem 6,710,886...httpd tcp!127.1!8000...init...icache 6,= 710,886 bytes =3D 66,728 entries; 4 scache
>> sync...announce tcp!127.1!17034...serving.
>> fossil(#S/sdC0/fossil)...fsys: dialing venti at tcp!127.1!17034 >> version...can't stat /srv/partfs.sdXX: '/srv/partfs.sdXX&#= 39; file does not exist
>>
>> init: starting /bin/rc
>> secstore
>> mkvbe: '/dev/realmode' file does not exist
>> aux/vga: controller not in /lib/vgadb, not vesa
>> 0xC0000 55 AA 4D E9 90 55 CC 00 00 00 00 00 00 00 00 00  U.M.= .U..........
>> 0xC0010 00 00 00 00 00 00 00 00 5C 98 00 00 00 00 49 42  ....= ....\.....IB
>> 0xC0020 4D 00 2E 8B 16 E8 98 85 D2 74 01 EE C2 02 00 84  M...= .....t......
>> 0xC0030 C0 74 34 66 55 66 89 E5 66 53 66 89 C3 66 B8 00  .t4f= Uf..fSf..f..
>> 0xC0040 40 00 00 FE CB 74 37 66 0F B7 D2 66 0F B7 C9 66  @...= .t7f...f...f
>> 0xC0050 0F AF D1 66 C1 FA 03 66 89 D0 9C 66 05 FF 1F 00  ...f= ...f...f....
>> 0xC0060 00 9D 25 00 E0 EB 17 0F AF CA 66 89 C8 9C 66 D1  ..%.= ......f...f.
>> 0xC0070 E0 66 05 FF 07 00 00 9D 25 00 F8 C2 02 00 66 5B  .f..= ....%.....f[
>> 0xC0080 66 5D C2 02 00 66 55 66 89 E5 66 56 66 53 66 89  f]..= .fUf..fVfSf.
>> 0xC0090 C6 66 89 D3 66 89 CA 67 66 8B 4D 08 67 8A 45 0C  .f..= f..gf.M.g.E.
>> 0xC00A0 66 C1 E6 10 66 0F B7 DB 66 09 F3 66 31 F6 8E C6  f...= f...f..f1...
>> 0xC00B0 26 66 89 1E 0C 01 80 F9 01 74 0D 80 F9 03 74 0C  &= ;f.......t....t.
>> 0xC00C0 84 C9 74 0A B0 19 EB 06 B0 0E EB 02 B0 2B 66 B9  ..t.= .........+f.
>> 0xC00D0 40 00 00 00 8E C1 66 48 26 A2 84 00 8E C1 66 0F  @...= ..fH&.....f.
>> 0xC00E0 B6 D2 26 89 16 85 00 66 5B 66 5E 66 5D C2 02 00  ..&a= mp;....f[f^f]...
>> 0xC00F0 66 55 66 89 E5 66 57 66 56 66 53 66 53 66 89 C3  fUf.= .fWfVfSfSf..
>> aux/vga: main: vga@1024x768x1 not in /lib/vgadb
>> rio: can't open display: initdisplay: /dev/draw/new: no frame = buffer
>> init: rc exit status: rio 41: display open
>>
>> init: starting /bin/rc
>> term%
>>

------------------------------------------
9fans: 9fans
Permalink: https:= //9fans.topicbox.com/groups/9fans/Ta43f70982c6bc008-M35cca9792702cb1a0710e1= b1
Delivery options: https://9fans.topicbox.com/gro= ups/9fans/subscription
= --000000000000e659950647a8739b--