From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3338 invoked by alias); 13 Apr 2017 16:01:34 -0000 Mailing-List: contact zsh-workers-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Workers List List-Post: List-Help: X-Seq: 40966 Received: (qmail 14992 invoked from network); 13 Apr 2017 16:01:34 -0000 X-Qmail-Scanner-Diagnostics: from mail-wm0-f41.google.com by f.primenet.com.au (envelope-from , uid 7791) with qmail-scanner-2.11 (clamdscan: 0.99.2/21882. spamassassin: 3.4.1. Clear:RC:0(74.125.82.41):SA:0(0.7/5.0):. Processed in 0.931024 secs); 13 Apr 2017 16:01:34 -0000 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=0.7 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,RCVD_IN_SORBS_SPAM,SPF_PASS, T_DKIM_INVALID autolearn=no autolearn_force=no version=3.4.1 X-Envelope-From: arkanosis@gmail.com X-Qmail-Scanner-Mime-Attachments: | X-Qmail-Scanner-Zip-Files: | Received-SPF: pass (ns1.primenet.com.au: SPF record at _netblocks.google.com designates 74.125.82.41 as permitted sender) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc:content-transfer-encoding; bh=UCw9EbEBUXiDGYrPglQpUn+34Oat4MvsXJnFaOoOwc8=; b=qP0vBgjlJICqfiLoeMEVE4XLxc0JfyKOHMO5Wmir3kYGUmP6mSX+K+mfDZraBv2mJ9 BNwDe21WC4FxU/g0R68BqF+h+cYx7atjIeXbkmNnlQUWbihEVZEIJ23etoNlthAWNG5g LL6IgANPRRbJSfpRmzcgu4pCQiJJzhp1x+kq7SFqvzuQNsdRI+3C1+lcUvkF/+TkNeys 3stRhPYriJSBTPjpUM1UVgYKD7a12Tpwo/j2QoJ5rafUtlx7bHnVpr7nnhRQLULge4Sz 4aCRV5D8hvPcuU5eysKF/U+MTFSu3CrnQgQJObUrPOOmCy3oYAOBqrVM817YVoq+JF1s nluA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc:content-transfer-encoding; bh=UCw9EbEBUXiDGYrPglQpUn+34Oat4MvsXJnFaOoOwc8=; b=E7pCj3ENIcbcDsQFHMggRM2cPYcyPbtLsYTsKgEtmHT3w1ztZ5qqROi5oLyBkm2qm+ SgpfukLt3SoRSLaslPYsfXWoufZ7rZRly06038Vjd360ZVVW6w7JNhHXMlg2AZpLQFbC yjkYk2aXhYV0EJcBk3mlzhNpcLKVRX0zTqovwjiCl4J9O+KwJ7shjUbPSI/F3KKtQbxv PNzxWWJvMBtV8HVcIZR0cECZqj7A3+s1b8U7SLOUPJRAaglSqUF6Mq2kgJe2A7CROysX SrtWVl51TXrVTHOi+Z/QNMeNVOtoQMqpUffVBpCAcu+ybTGDhx0XvoiltOIG0l1/6b2Q px7Q== X-Gm-Message-State: AN3rC/7li1ULrKhZGwlFce/tp/vJpH3OdB8zNaCngy4nukSW1saFwVxK eekmo9HB87jveAYPdQczBlLvMGAJbA== X-Received: by 10.28.31.199 with SMTP id f190mr4142442wmf.133.1492099288778; Thu, 13 Apr 2017 09:01:28 -0700 (PDT) MIME-Version: 1.0 Sender: arkanosis@gmail.com In-Reply-To: References: <2960832.nVDpiBkaWZ@kdudka-nb> <2420758.31stuSQeAV@kdudka-nb> <2350280.olGvC23INb@kdudka-nb> From: =?UTF-8?B?SsOpcsOpbWllIFJvcXVldA==?= Date: Thu, 13 Apr 2017 18:01:13 +0200 X-Google-Sender-Auth: 4udsPjMSJnencBNoCbrZrBxNr3g Message-ID: Subject: Re: unbounded recursive call in a shell script crashes zsh To: Kamil Dudka Cc: Bart Schaefer , "zsh-workers@zsh.org" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 2017-04-13 17:21 GMT+02:00 J=C3=A9r=C3=A9mie Roquet = : > Hence a total of 5856 bytes per recursion, or 5719 kiB for 10000 recursio= ns. Sorry, I meant 1000 recursions, obviously. Here are the numbers when compiling using -O3 instead of -O0 -ggdb =E2=80= =94 probably more useful for optimization: execlist: 400 bytes execpline: 416 bytes execpline2: 224 bytes execcmd_exec: 4864 bytes execshfunc: 336 bytes doshfunc: 704 bytes runshfunc: 336 bytes execode: 80 bytes execlist: 400 bytes execpline: 416 bytes execpline2: 224 bytes execcmd_exec: 4864 bytes execif: 80 bytes Aggregated: execlist: 800 bytes execpline: 832 bytes execpline2: 448 bytes execcmd_exec: 9728 bytes execshfunc: 336 bytes doshfunc: 704 bytes runshfunc: 336 bytes execode: 80 bytes execif: 80 bytes Hence an even higher total of 13344 bytes per recursion, or 13032 kiB for 1000 recursions. If I'm not mistaken, execcmd_exec seems to account for 73% of the stack usa= ge. --=20 J=C3=A9r=C3=A9mie