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RTLinux V3.0pre10 beta hard real-time Linux is available

Jan 24, 2001 — by Rick Lehrbaum — from the LinuxDevices Archive — views

Seen at RTLinux.com . . .

RTLinux 3.0-pre10 is now available from the standard place. If no show-stopper problems are found in this release it will be the final v3.0, so please test!

This release requires the new kernel, so please use the patch included in the RTLinux distribution, or use our pre-patched kernel source trees (2.2.18 for x86 and 2.4.0-test1 for x86/ppc/alpha).

New in 3.0-pre10:

  • mbuff.h header fixed
  • RTLinux tracer added
  • FIONREAD ioctl support on FIFOs (Stuart Warren)
  • PowerPC timer overflow fix (Till Straumann)
  • User-Level real-time bugfixes (MM related)
  • Working version of rt-com
  • MIPS task startup stack bugfix
  • Alpha task startup fixes (prevents errors in the first quantum of RT threads)
  • MIPS/PowerPC timer interrupts to Linux are not delayed by the timer module any more than necessary now. This makes Linux timing a bit more accurate under heavy RTLinux load and gets the timing a bitmore efficient.
  • Alpha timer module fix. Alpha cycle counter isn't 32-bit so software has to keep track of the absolute 64-bit hrtime.
  • Alpha soft cli/sti fix. This could cause livelock during very heavy Linux IO loads.
  • RTLinux debugger now works on Alpha PPC timers (gethrtime and settimer) are more accurate now as they take into account the fact that decrementer ticks are not always even multiples of nanoseconds.
All RTLinux users are encouraged to upgrade to this release.

 
This article was originally published on LinuxDevices.com and has been donated to the open source community by QuinStreet Inc. Please visit LinuxToday.com for up-to-date news and articles about Linux and open source.



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