]> Devi Nivas Git - cs3210-lab0.git/log
cs3210-lab0.git
7 years agox
Frans Kaashoek [Thu, 30 Aug 2018 18:16:29 +0000 (14:16 -0400)]
x

7 years agothanks mtasm
Frans Kaashoek [Thu, 30 Aug 2018 18:09:03 +0000 (14:09 -0400)]
thanks mtasm

7 years agothanks wxdao
Frans Kaashoek [Thu, 30 Aug 2018 17:48:47 +0000 (13:48 -0400)]
thanks wxdao

7 years agothanks eyalz800
Frans Kaashoek [Thu, 30 Aug 2018 17:46:48 +0000 (13:46 -0400)]
thanks eyalz800

7 years agovectors.pl is executable and asks shell for perl
Frans Kaashoek [Thu, 30 Aug 2018 17:36:07 +0000 (13:36 -0400)]
vectors.pl is executable and asks shell for perl

7 years agothanks mataness
Frans Kaashoek [Thu, 30 Aug 2018 17:30:50 +0000 (13:30 -0400)]
thanks mataness

7 years agothanks tyfkda
Frans Kaashoek [Thu, 30 Aug 2018 17:27:57 +0000 (13:27 -0400)]
thanks tyfkda

7 years agox
Frans Kaashoek [Thu, 30 Aug 2018 17:25:54 +0000 (13:25 -0400)]
x

7 years agoRemove unused flags (thanks Wolfgang Keller)
Frans Kaashoek [Thu, 30 Aug 2018 17:14:01 +0000 (13:14 -0400)]
Remove unused flags (thanks Wolfgang Keller)

7 years agox
Frans Kaashoek [Thu, 30 Aug 2018 17:09:03 +0000 (13:09 -0400)]
x

7 years agox
Frans Kaashoek [Thu, 30 Aug 2018 16:12:16 +0000 (12:12 -0400)]
x

7 years agoBecause sleeplocks replaced B_BUSY the holding test can
Frans Kaashoek [Thu, 30 Aug 2018 15:57:46 +0000 (11:57 -0400)]
Because sleeplocks replaced B_BUSY the holding test can
be more specific (thanks Mark Morrissey)

7 years agox
Frans Kaashoek [Thu, 30 Aug 2018 15:42:10 +0000 (11:42 -0400)]
x

8 years agostricter log consumption by write()
Robert Morris [Tue, 24 Oct 2017 12:49:31 +0000 (08:49 -0400)]
stricter log consumption by write()

8 years agoimprove swtch comment
Robert Morris [Sun, 8 Oct 2017 11:12:31 +0000 (07:12 -0400)]
improve swtch comment

8 years agofix runoff complaints about pagination and long lines
Robert Morris [Tue, 29 Aug 2017 18:11:59 +0000 (14:11 -0400)]
fix runoff complaints about pagination and long lines

8 years agothx
Frans Kaashoek [Thu, 10 Aug 2017 11:09:53 +0000 (07:09 -0400)]
thx

8 years agoUpdate comment to reflect xv6 doesn't have per-cpu segments anymore
Frans Kaashoek [Wed, 9 Aug 2017 12:07:55 +0000 (08:07 -0400)]
Update comment to reflect xv6 doesn't have per-cpu segments anymore

8 years agonothing much
Robert Morris [Wed, 9 Aug 2017 18:16:55 +0000 (14:16 -0400)]
nothing much

8 years agoCommit to running on an SMP (perhaps with only 1 core). Remove most code
Frans Kaashoek [Wed, 9 Aug 2017 11:43:06 +0000 (07:43 -0400)]
Commit to running on an SMP (perhaps with only 1 core). Remove most code
from picirq.c and remove timer.c completely.  Update runoff.list.

8 years agocomment fixes
Robert Morris [Wed, 9 Aug 2017 10:54:45 +0000 (06:54 -0400)]
comment fixes

8 years agoThanks Anton Burtsev <aburtsev@uci.edu>
Frans Kaashoek [Tue, 8 Aug 2017 23:42:51 +0000 (19:42 -0400)]
Thanks Anton Burtsev <aburtsev@uci.edu>

8 years agofix iput() to more obviously avoid deadlock
Robert Morris [Tue, 8 Aug 2017 18:19:54 +0000 (14:19 -0400)]
fix iput() to more obviously avoid deadlock

8 years agoa little more lock documentation
Robert Morris [Tue, 8 Aug 2017 18:12:25 +0000 (14:12 -0400)]
a little more lock documentation

8 years agoprotect ip->valid and ip->nlink with sleep lock in iput()
Robert Morris [Tue, 8 Aug 2017 17:48:48 +0000 (13:48 -0400)]
protect ip->valid and ip->nlink with sleep lock in iput()

8 years agochange ip->flags&I_VALID to ip->valid
Robert Morris [Tue, 8 Aug 2017 17:34:13 +0000 (13:34 -0400)]
change ip->flags&I_VALID to ip->valid

8 years agoMerge branch 'master' of g.csail.mit.edu:xv6-dev
Robert Morris [Tue, 8 Aug 2017 17:27:06 +0000 (13:27 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev

8 years agofrans' fixes to iput()
Robert Morris [Tue, 8 Aug 2017 17:26:57 +0000 (13:26 -0400)]
frans' fixes to iput()

8 years agofs comment nits
Robert Morris [Tue, 8 Aug 2017 17:24:38 +0000 (13:24 -0400)]
fs comment nits

8 years agoRemove some debugging statements
Frans Kaashoek [Mon, 7 Aug 2017 19:15:18 +0000 (15:15 -0400)]
Remove some debugging statements

8 years agoMerge branch 'nogs'
Frans Kaashoek [Mon, 7 Aug 2017 18:35:05 +0000 (14:35 -0400)]
Merge branch 'nogs'

8 years agoMerge branch 'patch-1' of https://github.com/aliceinwire/xv6-public
Frans Kaashoek [Mon, 7 Aug 2017 17:44:03 +0000 (13:44 -0400)]
Merge branch 'patch-1' of https://github.com/aliceinwire/xv6-public

8 years agoMerge branch 'patch-1' of https://github.com/Saarett/xv6-public
Frans Kaashoek [Mon, 7 Aug 2017 17:29:11 +0000 (13:29 -0400)]
Merge branch 'patch-1' of https://github.com/Saarett/xv6-public

8 years agoFix typo in dirlookup
Grant Wu [Thu, 27 Apr 2017 02:56:51 +0000 (19:56 -0700)]
Fix typo in dirlookup

8 years agoUpdate LICENSE
Alice Ferrazzi [Mon, 27 Feb 2017 04:12:59 +0000 (13:12 +0900)]
Update LICENSE

updated copyright year

9 years agoFree pgdir in setupkvm in case of mappages failure
Saarett [Sun, 5 Feb 2017 10:44:56 +0000 (12:44 +0200)]
Free pgdir in setupkvm in case of mappages failure

There is a potential memory leak when mappages() fails inside setupkvm().
A call to freevm() is added in this case so as to reclaim the lost mapping pages.

9 years agoA tiny bit of clean up (e.g., move code searching cpu array from lapic.c into
Frans Kaashoek [Thu, 2 Feb 2017 01:36:41 +0000 (20:36 -0500)]
A tiny bit of clean up (e.g., move code searching cpu array from lapic.c into
mycpu() in proc.c.

9 years agouse panic
Frans Kaashoek [Thu, 2 Feb 2017 00:21:43 +0000 (19:21 -0500)]
use panic

9 years agoshorten comment
Frans Kaashoek [Thu, 2 Feb 2017 00:18:47 +0000 (19:18 -0500)]
shorten comment

9 years agoEliminate code for gs trick to track per-cpu state. We rely on lapiccpunum()
Frans Kaashoek [Wed, 1 Feb 2017 23:04:13 +0000 (18:04 -0500)]
Eliminate code for gs trick to track per-cpu state.  We rely on lapiccpunum()
to find a per-cpu id with which we locate a cpu's cpu struct.

9 years agoRead curproc from cpu structure, but be careful because after a schedule event
Frans Kaashoek [Wed, 1 Feb 2017 01:21:14 +0000 (20:21 -0500)]
Read curproc from cpu structure, but be careful because after a schedule event
myproc() points to a different thread.

   myproc();
   sched();
   myproc();  // this proc maybe different than the one before sched

Thus, in a function that operates on one thread better to retrieve the
current process once at the start of the function.

9 years agoStart of an experiment to remove the use of gs for cpu local variables.
Frans Kaashoek [Tue, 31 Jan 2017 22:47:16 +0000 (17:47 -0500)]
Start of an experiment to remove the use of gs for cpu local variables.

9 years agowolfgang keller
Frans Kaashoek [Tue, 31 Jan 2017 01:24:13 +0000 (20:24 -0500)]
wolfgang keller

9 years agoFix spelling Gaoron.
Frans Kaashoek [Tue, 31 Jan 2017 01:11:23 +0000 (20:11 -0500)]
Fix spelling Gaoron.

9 years agoThanks to Wolfgang Keller <nubok@users.noreply.github.com>
Frans Kaashoek [Tue, 31 Jan 2017 01:09:54 +0000 (20:09 -0500)]
Thanks to Wolfgang Keller <nubok@users.noreply.github.com>

9 years agoThanks to Wolfgang Keller <nubok@users.noreply.github.com>
Frans Kaashoek [Tue, 31 Jan 2017 01:07:42 +0000 (20:07 -0500)]
Thanks to Wolfgang Keller <nubok@users.noreply.github.com>

9 years agoAdd support for qemu-system-x86_64 in 64bit hosts
Antonio Gutierrez [Fri, 2 Dec 2016 19:17:54 +0000 (20:17 +0100)]
Add support for qemu-system-x86_64 in 64bit hosts

As x86-64 is a superset of x86, we can use qemu-system-x86_64 to run
the OS image.

Signed-off-by: Antonio Gutierrez <chibby0ne@gmail.com>
9 years agoThanks to Jeehoon Kang <jeehoon.kang@sf.snu.ac.kr>
Frans Kaashoek [Tue, 31 Jan 2017 01:01:33 +0000 (20:01 -0500)]
Thanks to Jeehoon Kang <jeehoon.kang@sf.snu.ac.kr>

9 years agoFix long-standing switchuvm() inconsistency.
Peter Froehlich [Fri, 23 Dec 2016 01:26:37 +0000 (20:26 -0500)]
Fix long-standing switchuvm() inconsistency.

switchuvm() is supposed to switch the TSS and page table to the
process p it is passed. Alas, instead of using p to access the
kstack field, it used the global proc. This worked fine because
(a) most uses of switchuvm() pass proc anyway and (b) because in
the schedule, where we call switchuvm with the newly scheduled
process, we actually set the global proc before the call. But I
think it's still a bug, even if it never broke a test case. :-)

9 years agoFix unsigned conversion bug.
Peter H. Froehlich [Tue, 27 Sep 2016 20:58:29 +0000 (16:58 -0400)]
Fix unsigned conversion bug.

Since readi() returns -1 for errors, checking with < against an unsigned
value is inadvisable. Checking with != works as intended however.

9 years agoCody
Frans Kaashoek [Mon, 30 Jan 2017 14:38:19 +0000 (09:38 -0500)]
Cody

9 years agofix possible memory leak in deallocuvm
Cody Cutler [Mon, 26 Sep 2016 16:21:01 +0000 (12:21 -0400)]
fix possible memory leak in deallocuvm

when a zero PDE is encountered while searching for present PTEs to free,
resume searching at first entry of the next page table instead of the
current entry of the next page table.

9 years agoFixed broken build on newer gold linker with NaCl support
Icenowy Zheng [Sat, 9 Apr 2016 01:38:40 +0000 (09:38 +0800)]
Fixed broken build on newer gold linker with NaCl support

On platforms with NaCl support, ld.gold -V will return a "elf_i386_nacl" in
addition to "elf_i386", which will make the build fail.

9 years agoAdd mikecat's argp test
Frans Kaashoek [Mon, 26 Sep 2016 11:54:02 +0000 (07:54 -0400)]
Add mikecat's argp test

9 years agofix memory region validation in argptr()
MikeCAT [Sat, 19 Dec 2015 13:52:11 +0000 (22:52 +0900)]
fix memory region validation in argptr()

9 years agoTypo (Thanks to Austin Liew)
Frans Kaashoek [Sun, 25 Sep 2016 12:27:26 +0000 (08:27 -0400)]
Typo (Thanks to Austin Liew)

9 years agoMerge branch 'master' of g.csail.mit.edu:xv6-dev
Frans Kaashoek [Mon, 19 Sep 2016 11:02:08 +0000 (07:02 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev

9 years agoCheck result of write (thans to Alexander Kapshuk <alexander.kapshuk@gmail)
Frans Kaashoek [Mon, 19 Sep 2016 11:01:30 +0000 (07:01 -0400)]
Check result of write (thans to Alexander Kapshuk <alexander.kapshuk@gmail)

9 years agoFix a small README typo
Tej Chajed [Fri, 16 Sep 2016 13:11:23 +0000 (09:11 -0400)]
Fix a small README typo

9 years agoRemove left-over print statements
Frans Kaashoek [Thu, 15 Sep 2016 23:16:30 +0000 (19:16 -0400)]
Remove left-over print statements

9 years agoMerge branch 'master' of g.csail.mit.edu:xv6-dev
Robert Morris [Thu, 15 Sep 2016 16:56:17 +0000 (12:56 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev

9 years agochange allocproc() back to acquiring the ptable.lock.
Robert Morris [Thu, 15 Sep 2016 16:12:05 +0000 (12:12 -0400)]
change allocproc() back to acquiring the ptable.lock.
fix bugs where caller incorrectly released lock on error return path.

9 years agoxx
Robert Morris [Thu, 15 Sep 2016 16:01:52 +0000 (12:01 -0400)]
xx

9 years agoDelete two left-over print statements
Frans Kaashoek [Thu, 15 Sep 2016 01:13:09 +0000 (21:13 -0400)]
Delete two left-over print statements

9 years agoUpdate comment a bit.
Frans Kaashoek [Wed, 14 Sep 2016 17:01:53 +0000 (13:01 -0400)]
Update comment a bit.

9 years agoAdd sleeplock.[ch] to listing
Frans Kaashoek [Wed, 14 Sep 2016 12:43:57 +0000 (08:43 -0400)]
Add sleeplock.[ch] to listing

9 years agoone more BUSY
Frans Kaashoek [Tue, 13 Sep 2016 18:51:44 +0000 (14:51 -0400)]
one more BUSY

9 years agosleeplock files
Frans Kaashoek [Mon, 12 Sep 2016 01:01:24 +0000 (21:01 -0400)]
sleeplock files

9 years agoReplace I_BUSY with sleep locks
Frans Kaashoek [Mon, 12 Sep 2016 00:59:57 +0000 (20:59 -0400)]
Replace I_BUSY with sleep locks

9 years agoMove retry loop/sleep/wakeup in bio.c into sleeping locks
Frans Kaashoek [Mon, 12 Sep 2016 00:17:22 +0000 (20:17 -0400)]
Move retry loop/sleep/wakeup in bio.c into sleeping locks

9 years agoStraight replacement of B_BUSY with a sleeping lock.
Frans Kaashoek [Sun, 11 Sep 2016 21:24:04 +0000 (17:24 -0400)]
Straight replacement of B_BUSY with a sleeping lock.

9 years agoMerge branch 'master' of g.csail.mit.edu:xv6-dev
Frans Kaashoek [Fri, 9 Sep 2016 01:20:26 +0000 (21:20 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev

9 years agox
Frans Kaashoek [Fri, 9 Sep 2016 01:20:17 +0000 (21:20 -0400)]
x

9 years agouse asm() for lock release, not a C assignment
Robert Morris [Thu, 8 Sep 2016 18:45:20 +0000 (14:45 -0400)]
use asm() for lock release, not a C assignment

9 years agothis might fix the reported deadlock, though I can't reproduce it.
Robert Morris [Thu, 8 Sep 2016 18:22:38 +0000 (14:22 -0400)]
this might fix the reported deadlock, though I can't reproduce it.

9 years agoBe a bit more explicit what kind of suggestions are are interested.
Frans Kaashoek [Thu, 8 Sep 2016 17:09:09 +0000 (13:09 -0400)]
Be a bit more explicit what kind of suggestions are are interested.

9 years agoMake runoff happy
Frans Kaashoek [Fri, 2 Sep 2016 19:27:28 +0000 (15:27 -0400)]
Make runoff happy

9 years agoFix a few lines that runoff is complaining about that they are too long
Frans Kaashoek [Fri, 2 Sep 2016 18:59:00 +0000 (14:59 -0400)]
Fix a few lines that runoff is complaining about that they are too long

9 years agoack xi
Frans Kaashoek [Fri, 2 Sep 2016 12:43:33 +0000 (08:43 -0400)]
ack xi

9 years agoMerge branch 'master' of g.csail.mit.edu:xv6-dev
Frans Kaashoek [Fri, 2 Sep 2016 12:36:14 +0000 (08:36 -0400)]
Merge branch 'master' of g.csail.mit.edu:xv6-dev

9 years agoAPIC IDs may not be consecutive and start from zero, so we cannot really use it
Frans Kaashoek [Fri, 2 Sep 2016 12:31:13 +0000 (08:31 -0400)]
APIC IDs may not be consecutive and start from zero, so we cannot really use it
as a direct index into cpus.  Record apicid in struct cpu and have cpunum() look
for it. Replace cpu->id with cpunum() everywhere, and replace cpu->id with cpu->apicid.
Thanks to Xi Wang.

9 years agocomment about sched() saving/restoring cpu->intena
Robert Morris [Fri, 2 Sep 2016 09:40:54 +0000 (05:40 -0400)]
comment about sched() saving/restoring cpu->intena

9 years agocurproc -> proc in a comment
Robert Morris [Thu, 1 Sep 2016 21:21:37 +0000 (17:21 -0400)]
curproc -> proc in a comment

9 years agobetter comment
Frans Kaashoek [Fri, 26 Aug 2016 12:46:13 +0000 (08:46 -0400)]
better comment

9 years agoack
Frans Kaashoek [Fri, 26 Aug 2016 12:22:24 +0000 (08:22 -0400)]
ack

9 years agoset iomb to forbid i/o instructions from user space
Frans Kaashoek [Fri, 26 Aug 2016 12:20:11 +0000 (08:20 -0400)]
set iomb to forbid i/o instructions from user space
add to test that they indeed trap in user space
thanks to pablogventura@gmail.com and nwolovick@gmail.com

9 years agox
Frans Kaashoek [Thu, 25 Aug 2016 13:14:52 +0000 (09:14 -0400)]
x

9 years agoRemove trailing white space with:
Frans Kaashoek [Thu, 25 Aug 2016 13:13:00 +0000 (09:13 -0400)]
Remove trailing white space with:
 for f in *.{h,c}; do sed -i .sed 's/[[:blank:]]*$//' $f; done
(Thanks to Nicolás Wolovick)

9 years agoack mikecat
Frans Kaashoek [Thu, 25 Aug 2016 11:12:33 +0000 (07:12 -0400)]
ack mikecat

9 years agoadd check for wrapping of address + size in exec()
MikeCAT [Sat, 19 Dec 2015 15:04:52 +0000 (00:04 +0900)]
add check for wrapping of address + size in exec()

9 years agoadd alignment check of virtual address to exec()
MikeCAT [Sat, 19 Dec 2015 14:43:56 +0000 (23:43 +0900)]
add alignment check of virtual address to exec()

9 years agop2v -> P2V
Robert Morris [Wed, 24 Aug 2016 17:40:06 +0000 (13:40 -0400)]
p2v -> P2V

9 years agox
Frans Kaashoek [Fri, 19 Aug 2016 11:20:08 +0000 (07:20 -0400)]
x

9 years agoCoding style (thanks to phf).
Frans Kaashoek [Fri, 19 Aug 2016 01:02:05 +0000 (21:02 -0400)]
Coding style (thanks to phf).

9 years agoFixed QEMU command line avoids raw image warning.
Peter H. Froehlich [Sat, 26 Sep 2015 21:38:04 +0000 (17:38 -0400)]
Fixed QEMU command line avoids raw image warning.

9 years agoIt will be for 2016
Frans Kaashoek [Thu, 18 Aug 2016 18:00:48 +0000 (14:00 -0400)]
It will be for 2016

9 years agoUpdate based on a scan of my 6828 folder
Frans Kaashoek [Thu, 18 Aug 2016 17:37:32 +0000 (13:37 -0400)]
Update based on a scan of my 6828 folder

9 years agoRemoved useless variable.
Peter H. Froehlich [Sat, 3 Oct 2015 08:43:05 +0000 (04:43 -0400)]
Removed useless variable.

9 years agoAgain, QEMU command line to avoid image warning.
Peter H. Froehlich [Sat, 3 Oct 2015 05:55:43 +0000 (01:55 -0400)]
Again, QEMU command line to avoid image warning.

9 years agoRemove unused variable, nits.
Peter H. Froehlich [Sun, 27 Sep 2015 03:10:25 +0000 (23:10 -0400)]
Remove unused variable, nits.