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From: "bugdal at aerifal dot cx" <sourceware-bugzilla@sourceware.org> To: glibc-bugs@sourceware.org Subject: [Bug libc/11787] Program with large TLS segments fail. Date: Sat, 27 Apr 2013 02:02:00 -0000 [thread overview] Message-ID: <bug-11787-131-VsXWKYosFr@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-11787-131@http.sourceware.org/bugzilla/> http://sourceware.org/bugzilla/show_bug.cgi?id=11787 Rich Felker <bugdal at aerifal dot cx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugdal at aerifal dot cx --- Comment #37 from Rich Felker <bugdal at aerifal dot cx> 2013-04-27 02:02:42 UTC --- For what it's worth, the strategy we're using in musl seems to work well: 1. For implementation-allocated stacks, the requested size is always available to the application. TLS and guard size are added onto that for the allocation. 2. For application-provided stacks, if the size of TLS is greater than 2k or greater than 1/8 of the provided stack space, additional space for the TCB/TLS/etc. is allocated and the provided stack is used only for actual stack. This ensures that application expectations are met: automatic variables in the thread have addresses in the specified range, and the amount of stack space available is "close enough" to what the application requested that, if it overflows, it's reasonable to say it's the application's fault for not leaving a better margin of error. I'm not sure how easy it would be to make glibc/NPTL use separate regions for the stack and TLS though... -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
next prev parent reply other threads:[~2013-04-27 2:02 UTC|newest] Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-11787-131@http.sourceware.org/bugzilla/> 2012-02-24 4:35 ` [Bug libc/11787] Program with large TLS segment fails aio_write ppluzhnikov at google dot com 2012-02-24 19:36 ` asharif.tools at gmail dot com 2012-03-22 21:48 ` asharif.tools at gmail dot com 2012-03-23 20:35 ` vapier at gentoo dot org 2012-03-23 20:37 ` carlos_odonell at mentor dot com 2012-03-23 20:39 ` carlos_odonell at mentor dot com 2012-03-23 21:33 ` carlos_odonell at mentor dot com 2012-03-23 22:07 ` ppluzhnikov at google dot com 2012-03-23 22:47 ` asharif.tools at gmail dot com 2012-03-23 22:51 ` carlos_odonell at mentor dot com 2012-03-23 23:02 ` carlos_odonell at mentor dot com 2012-03-23 23:03 ` carlos_odonell at mentor dot com 2012-03-24 2:22 ` carlos_odonell at mentor dot com 2012-03-24 10:30 ` ppluzhnikov at google dot com 2012-03-24 16:10 ` carlos_odonell at mentor dot com 2012-03-24 17:08 ` carlos_odonell at mentor dot com 2012-03-24 17:39 ` vapier at gentoo dot org 2012-03-24 18:30 ` ppluzhnikov at google dot com 2012-03-24 20:13 ` carlos_odonell at mentor dot com 2012-03-24 20:46 ` carlos_odonell at mentor dot com 2012-03-24 20:57 ` ppluzhnikov at google dot com 2012-03-25 2:01 ` carlos_odonell at mentor dot com 2012-03-25 23:16 ` vapier at gentoo dot org 2012-03-26 14:29 ` joseph at codesourcery dot com 2012-03-26 17:44 ` carlos_odonell at mentor dot com 2012-03-27 21:21 ` carlos_odonell at mentor dot com 2012-03-30 16:21 ` carlos_odonell at mentor dot com 2012-03-30 16:46 ` law at redhat dot com 2012-03-30 21:28 ` ppluzhnikov at google dot com 2012-04-01 19:47 ` carlos_odonell at mentor dot com 2012-04-24 22:03 ` asharif.tools at gmail dot com 2012-04-24 22:36 ` carlos_odonell at mentor dot com 2012-04-25 2:55 ` vapier at gentoo dot org 2012-04-25 18:25 ` asharif.tools at gmail dot com 2012-04-25 20:11 ` carlos_odonell at mentor dot com 2012-05-07 21:22 ` [Bug libc/11787] Program with large TLS segments fail carlos_odonell at mentor dot com 2012-05-17 14:11 ` carlos_odonell at mentor dot com 2012-05-22 7:05 ` siddhesh at redhat dot com 2012-05-23 16:41 ` carlos_odonell at mentor dot com 2012-05-23 17:09 ` siddhesh at redhat dot com 2012-05-23 17:09 ` siddhesh at redhat dot com 2012-06-05 15:15 ` ian at airs dot com 2012-11-19 6:18 ` carlos_odonell at mentor dot com 2012-12-03 23:52 ` carlos at systemhalted dot org 2012-12-03 23:53 ` carlos at systemhalted dot org 2013-04-26 18:06 ` ppluzhnikov at google dot com 2013-04-27 2:02 ` bugdal at aerifal dot cx [this message] 2013-05-22 18:40 ` carlos at redhat dot com 2013-09-13 21:45 ` bas at bmail dot ru 2013-11-23 9:05 ` david.abdurachmanov at gmail dot com 2013-11-23 9:20 ` david.abdurachmanov at gmail dot com 2013-11-24 15:58 ` carlos at redhat dot com 2014-02-16 19:42 ` jackie.rosen at hushmail dot com 2014-05-28 19:41 ` schwab at sourceware dot org 2014-06-30 17:33 ` fweimer at redhat dot com 2014-07-02 6:06 ` fweimer at redhat dot com 2015-03-23 2:50 ` andersk at mit dot edu 2015-08-22 21:36 ` [Bug dynamic-link/11787] " jsm28 at gcc dot gnu.org 2020-06-15 16:23 ` john.wellesz at hiventy dot com 2021-06-19 8:05 ` a3at.mail at gmail dot com 2022-01-26 6:44 ` sam at gentoo dot org 2022-06-07 8:09 ` i at maskray dot me 2022-11-06 20:12 ` i at maskray dot me
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