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| author | Thomas Schwinge <thomas@codesourcery.com> | 2012-12-20 22:13:17 +0100 |
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| committer | Thomas Schwinge <thomas@codesourcery.com> | 2012-12-20 22:13:17 +0100 |
| commit | c77f17cfb827c17de7f1d5318cbbbeea03286715 (patch) | |
| tree | c72a20c83f42c10967120c633edd51628240611f /glibc/critical_section.mdwn | |
| parent | 8e4cd1e9147637ead1ef782cb67a660eb45845a1 (diff) | |
| download | web-c77f17cfb827c17de7f1d5318cbbbeea03286715.tar.gz web-c77f17cfb827c17de7f1d5318cbbbeea03286715.tar.bz2 web-c77f17cfb827c17de7f1d5318cbbbeea03286715.zip | |
open_issues/fork_deadlock: Data I collected.
Diffstat (limited to 'glibc/critical_section.mdwn')
| -rw-r--r-- | glibc/critical_section.mdwn | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/glibc/critical_section.mdwn b/glibc/critical_section.mdwn new file mode 100644 index 00000000..98ed86e9 --- /dev/null +++ b/glibc/critical_section.mdwn @@ -0,0 +1,19 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +Quoting from `hurd/hurd/signal.h`: + +> A *critical section* is a section of code which cannot safely be interrupted +> to run a [[signal handler|signal]]; for example, code that holds any lock +> cannot be interrupted lest the signal handler try to take the same lock and +> deadlock result. + +[[!tag open_issue_glibc]]Checking the code for any violations would be a useful +task of [[open_issues/code_analysis]]/[[open_issues/formal_verification]]. |