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identity=mailfrom; envelope-from="adr@SDF.ORG"; helo=mx.sdf.org; client-ip=205.166.94.24 Received: from mx.sdf.org (mx.sdf.org [205.166.94.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by tb-mx0.topicbox.com (Postfix) with ESMTPS for <9fans@9fans.net>; Mon, 20 Jun 2022 02:11:06 -0400 (EDT) (envelope-from adr@SDF.ORG) Received: from sdf.org (IDENT:adr@sdf.org [205.166.94.16]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 25K6B5Mh009110 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO) for <9fans@9fans.net>; Mon, 20 Jun 2022 06:11:05 GMT Received: from localhost (adr@localhost) by sdf.org (8.15.2/8.12.8/Submit) with ESMTP id 25K6B5KB015559 for <9fans@9fans.net>; Mon, 20 Jun 2022 06:11:05 GMT Date: Mon, 20 Jun 2022 06:11:05 +0000 (UTC) From: adr To: 9fans@9fans.net Subject: Re: [9fans] syscall silently kill processes (fwd) Message-ID: <8c4c3084-7c87-e228-f791-69b14675d9b0@SDF.ORG> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: c91bb9dc-f05f-11ec-af26-beff905cf099 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UNWE1OGNmYWQ1YmM2MGQ1Yy1NY2JhYjE2NGM1MGFmMDY0ZTcyMmM5?= =?UTF-8?B?MzE1Pg==?= 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: quoted-printable List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:Mcbab164c50af064e722c9315:1:V27DKVcr9xiNWd5SZloAfOy8Ybz3WHjQKZVLGG7CNKc The last mail got screwed, I'm resending this for clarity.=20 /sys/src/libthread/sched.c: [...] if(t =3D=3D nil){ _threaddebug(DBGSCHED, "all threads gone; exiting"); cancelnotes(p->pid); _schedexit(p); } [...]=20 /sys/src/libthread/note.c [...] int threadnotify(int (*f)(void*, char*), int in) { int i, frompid, topid; int (*from)(void*, char*), (*to)(void*, char*); if(in && in>-2){ from =3D nil; frompid =3D 0; to =3D f; topid =3D (in =3D=3D -1)? -1 : _threadgetproc()->pid; lock(&onnotelock); for(i=3D0; ipid; to =3D nil; topid =3D 0; } lock(&onnotelock); for(i=3D0; ipending) return; p->pending =3D 0; for(n=3Dnotes; nproc =3D=3D p){ for(i=3D0; ipid && onnotepid[i]!= =3D-1) || (fn =3D onnote[i])=3D=3Dnil) continue; if((*fn)(v, n->s)) break; [...] /sys/include/thread.h [...] void cancelnotes(int pid); [...]=20 ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T5a58cfad5bc60d5c-Mcbab1= 64c50af064e722c9315 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription