Date: Sat, 3 Feb 2007 11:30:27 GMT From: "Jonathan Liu" <Net147@hotmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/108706: [tail] segmentation fault for files over 2GB Message-ID: <200702031130.l13BURE7012918@freefall.freebsd.org>
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The following reply was made to PR bin/108706; it has been noted by GNATS. From: "Jonathan Liu" <Net147@hotmail.com> To: <bug-followup@FreeBSD.org>, <Net147@hotmail.com> Cc: Subject: Re: bin/108706: [tail] segmentation fault for files over 2GB Date: Sat, 3 Feb 2007 22:29:31 +1100 This is a multi-part message in MIME format. ------=_NextPart_000_006A_01C747E2.C6236D60 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit More specially, this doesn't happen in all cases but it happens in my case. I was doing some testing with audio I/O. On one terminal I had: cat /dev/dsp | tee /rectest | tee /dev/dsp. On the other terminal I waited until the file was big enough (when I tested the 3rd time the file was only 3829760 bytes): tail -f /rectest 'tail /rectest' also appears to give "Segmentation fault". If I stop the 'cat /dev/dsp | tee /rectest | tee /dev/dsp' command and copy the file and use tail: cp /rectest /rectest2 tail -f /rectest2 Then the problem doesn't occur with the copy of the file. Then I do 'tail -f /rectest' and it happens again. Also, sometimes if I do 'tail -f /rectest' on multiple terminals after, the terminal would freeze and I can't CTRL+C out of it but the characters I press still appear. ------=_NextPart_000_006A_01C747E2.C6236D60 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns=3D"http://www.w3.org/TR/REC-html40">; <head> <meta http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"> <meta name=3DGenerator content=3D"Microsoft Word 11 (filtered medium)"> <style> <!-- /* Font Definitions */ @font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1;} @font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman";} a:link, span.MsoHyperlink {color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline;} span.EmailStyle17 {mso-style-type:personal-compose; font-family:Arial; color:windowtext;} @page Section1 {size:595.3pt 841.9pt; margin:72.0pt 90.0pt 72.0pt 90.0pt;} div.Section1 {page:Section1;} --> </style> </head> <body lang=3DEN-AU link=3Dblue vlink=3Dpurple> <div class=3DSection1> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>More specially, this doesn’t happen in all = cases but it happens in my case.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>I was doing some testing with audio = I/O.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>On one terminal I had: cat /dev/dsp | tee /rectest | = tee /dev/dsp.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>On the other terminal I waited until the file was big = enough (when I tested the 3<sup>rd</sup> time the file was only 3829760 bytes): = tail –f /rectest<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>‘tail /rectest’ also appears to give = “Segmentation fault”.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>If I stop the ‘cat /dev/dsp | tee /rectest | = tee /dev/dsp’ command and copy the file and use = tail:<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>cp /rectest /rectest2<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>tail –f /rectest2<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>Then the problem doesn’t occur with the copy of = the file.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>Then I do ‘tail –f /rectest’ and it happens again.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'>Also, sometimes if I do ‘tail –f = /rectest’ on multiple terminals after, the terminal would freeze and I can’t = CTRL+C out of it but the characters I press still = appear.<o:p></o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> <p class=3DMsoNormal><font size=3D2 face=3DArial><span = style=3D'font-size:10.0pt; font-family:Arial'><o:p> </o:p></span></font></p> </div> </body> </html> ------=_NextPart_000_006A_01C747E2.C6236D60--
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