X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :content-type; q=dns; s=default; b=f8v/qu/ivcpAVQitEHu9ylQ5OLAnm +Y2/+Z/zvDI33h8rQjFw4Ma8ePik1/xYi4AxxajDXSMDNtPRYzZg9x2mnU2RKNCB q1Ykkqjboxb6Cr/E9BMnv8x4SEgAsc4BwzUpk+rtNgqLIyLAXUDkUW1NUPSXxx+Q +SGgno5jjMUMXY= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:mime-version:to:subject :content-type; s=default; bh=m70QuqZgD7ZXAoNU7OEy3zeXZU0=; b=SY3 rajpWTK4gKkz+2BFFc/w5q1iOpUjwlbCkMlYDJ5A6o02FfsXBe/P04Rbs3FA6uW8 4OQ4gUJekolhTpuwuyIGTqcjrgWEGLWCeCFPio79HsJXWfLy+Bl11n3PrkR7mwDv 5+I6nc1Qmu9mtTp+R1ip69xupp/SLbGgXXbjf/tQ= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-5.1 required=5.0 tests=AWL,BAYES_05,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM autolearn=no version=3.3.2 X-HELO: mail-wg0-f42.google.com X-Received: by 10.180.86.73 with SMTP id n9mr5436715wiz.78.1432654419949; Tue, 26 May 2015 08:33:39 -0700 (PDT) Message-ID: <55649249.6010602@gmail.com> Date: Tue, 26 May 2015 17:33:29 +0200 From: David Macek User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Non-Cygwin slaves inside tmux Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms060007010800080208030009" X-IsSubscribed: yes --------------ms060007010800080208030009 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi. My testcase: run mintty-bash, run tmux inside and run netsh inside. Try to = type. Result: horrible lags Expected result: it's possible to type normally I tried multiple Cygwin snapshots from the last 5 months, hoping that it co= uld be a regression (therefore easily fixable), but all of them exhibit the= same issue. A quick Google search didn't show any similar errors, so I'm reporting here= in hope someone will be able to say "yeah, that's easy, let me fix that". = :) Assuming I understand correctly the roles here -- bash does fork+exec(netsh= ) and Cygwin emulates that by creating a bash subprocess which creates a ne= tsh subprocess; the bash process that is spawned to execute the native exec= utable is creating threads and named pipes like crazy. Every few seconds a = new pipe and thread pop up. All the old threads seem to be stuck in: #0 0x00007ffad7f3120a in ntdll!ZwWaitForSingleObject () from /cygdrive/c/W= indows/SYSTEM32/ntdll.dll #1 0x00007ffad53b1118 in WaitForSingleObjectEx () from /cygdrive/c/Windows= /system32/KERNELBASE.dll #2 0x0000000180134cfb in muto::acquire (this=3D0x639363438, ms=3Dms AT entry= =3D4294967295) at /usr/src/debug/cygwin-2.0.2-1/winsup/cygwin/sync.cc:87 #3 0x00000001800f9ed9 in lock_process (exiting=3Dfalse, this=3D) at /usr/s= rc/debug/cygwin-2.0.2-1/winsup/cygwin/sync.h:53 #4 commune_process (arg=3D0x6e7cb90) at /usr/src/debug/cygwin-2.0.2-1/wins= up/cygwin/pinfo.cc:542 ... several other frames which are related to Cygwin threads, I assume ... strace shows tmux getting these: seterrno_from_win_error: /usr/src/ports/cygwin/cygwin-2.0.2-1.x86_64/src/ne= wlib-cygwin/winsup/cygwin/pinfo.cc:737 windows error 995 --=20 David Macek --------------ms060007010800080208030009 Content-Type: application/pkcs7-signature; name="smime.p7s" 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