Date: Tue, 02 Oct 2001 15:15:03 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: jobs@FreeBSD.org Subject: Experienced Kernel Programmer Seeking FreeBSD Kernel Work Message-ID: <XFMail.011002151503.jhb@FreeBSD.org>
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Anyone need a SMPng kernel hacker? :)
John H. Baldwin
john@baldwin.cx
http://www.baldwin.cx/~john/
Home Address
640 Center Ave. Apt 107
Martinez, CA 94553
Objective: To obtain a full time position in operating system
development at the kernel level.
Education: B.S., Computer Science, May 2000
B.S., Mathematics, Applied Discrete Mathematics
concentration, May 2000
Virginia Polytechnic Institute & State University
(Virginia Tech)
Blacksburg, VA.
Minor: Religious Studies
Relevant Coursework:
* Data Structures and File Management
* Operating Systems
* Comparative Languages
* Numerical Methods
* Compiler Theory and Design
Computer Skills: Hardware: Intel x86, Dec Alpha
Operating Systems: FreeBSD, Windows
Programming Languages: C, Pascal, Java, Intel x86
Assembly, Bourne Shell, Korn Shell, C Shell, Awk, Sed,
Perl
Markup Languages: DocBook, HTML, LaTeX
Applications: Xemacs, CVS, The GIMP, GDB
Work Experience: Senior Engineer, Wind River Systems, Inc., Alameda, CA
May 2001 - November 2001
* Continued work on multithreading the FreeBSD kernel;
* Extended the Witness debugging facility to handle
lock upgrades and downgrades.
* Converted the ktrace debugging facility to use a
kernel thread to write to its backing file to avoid
locking problems.
* Made the FreeBSD kernel fully preemptive.
Systems Programmer, Berkeley Software Design, Inc.,
Concord, CA
June 2000 - May 2001
* Improved support for EDD BIOS support in the x86
bootstrap needed for newer hard drives larger than
8.4 GB.
* Worked as one of the primary engineers on the FreeBSD
SMP next generation project:
* Converted low-level interrupt vectors to
interrupt threads;
* Extended the atomic operation kernel API to
allow for memory barriers in a manner consistent
for the x86, Alpha, and IA-64 architectures;
* Reworked the mutex code inherited from BSD/OS to
be fully machine independent and to depend on
the expanded atomic operation API for its
machine dependent bits;
* Split the software interrupt code from hardware
interrupts and made it completely machine
independent; and
* Exteneded the Witness lock debugging facility to
perform checks on shared/exclusive locks in
addition to mutexes.
* Assisted in implementing low-level support for SMP on
Alpha systems.
Lab Administrator, Virginia Tech, Blacksburg, VA
August 1998 - August 2000
* Administrated over 40 machines in the CS
undergraduate lab running FreeBSD.
* Implemented a server/client remote cloning system
using PicoBSD.
Summer Intern, Fuentez Systems Concepts, Inc.,
Martinsburg, WV
May 1999 - August 1999
* Rewrote all of the makefiles, centralizing the
definition of default rules and options. This new
system also allowed all internal software to be
recompiled with a single make command.
* Designed and implemented a system that allowed the
Automated Mutual-assistance VEssel Rescue (AMVER)
system to receive messages from ships directly over
e-mail.
Summer Intern, Gilbarco, Inc., Greensboro, NC
May 1998 - August 1998
* Wrote shell scripts to automate complicated and
tedious tasks under SCO Openserver.
* Developed a web-based database of problem reports
fully searchable and maintainable via CGI scripts.
Other Work Carpenter's helper, Novell network administrator in high
Experience: school
Activities: * Committer, FreeBSD
Interests: FreeBSD advocacy, playing guitar, reading science fiction
References: Available upon request
--
John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/
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