Frans Kaashoek
895af77fe6
check blockno passed to idestart
2015-04-10 07:15:06 -04:00
Frans Kaashoek
c24ac5d763
Disentangle block size from the disk's sector size. Set block size to 1024 to show
...
that they can be different. Clean up mkfs, simplifying specifying fs parameters,
remove some redundancy between fs and mkfs, and fix disk layout bugs. Call blocks
in the file system blocks instead of sectors. Passes usertests for different
block sizes.
2015-04-03 08:22:02 -04:00
Austin Clements
7443b9649a
Fix missing NUL-terminator in grep
...
Currently, grep read()s into a buffer and then uses the buffer as a
string. Since there's no NUL-terminator, this can cause it to falsely
identify line breaks and matches from leftover data on earlier lines
and, if a line fills up the entire buffer, to read past the end of the
buffer.
Fix this by NUL-terminating any data returned by read().
Thanks to Keiichi Watanabe for the report.
2015-03-24 20:54:39 -04:00
Cody Cutler
3d2dedd427
fix buf where concurrent fs syscalls race on log entries
2015-02-19 11:51:47 -05:00
Austin Clements
41f16c2183
Increase VM memory when running qemu-memfs
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Presumably because of the pre-loaded file system, the default RAM is
insufficient when running kernelmemfs
2014-10-03 09:44:26 -04:00
Austin Clements
8e54196355
Make kernelmemfs depend on kernel.ld
2014-10-03 09:43:44 -04:00
Austin Clements
0dd991dd20
Fix kernelmemfs linking
...
Commit 9aa0337d
2014-10-03 09:39:09 -04:00
Frans Kaashoek
053082fbed
ggdb -> gdwarf-2 for gcc4.8
2014-09-23 07:39:32 -04:00
Cody Cutler
e7d77aad2b
whoops. forgot date.h
2014-09-12 18:41:38 -04:00
Cody Cutler
aae4e7490f
cmosgetdate() for system-call homework
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the day of reckoning has come for the debug port "Shutdown" hack.
instead of mucking with ACPI or using a new hack, the student will now write
sys_date() using the cmosgetdate() helper.
2014-09-12 18:09:51 -04:00
Frans Kaashoek
75dee1219f
Oops (thanks David Lawrence)
2014-09-08 18:00:53 -04:00
Frans Kaashoek
9ba21267e7
no need to generate postscript version
2014-08-29 17:10:32 -04:00
Frans Kaashoek
74c77da6f8
Nice layout for a printout of the code
2014-08-29 17:06:49 -04:00
Frans Kaashoek
ac83a21a5b
Ack all bug reports and patches. Is this all of them?
2014-08-29 09:03:29 -04:00
Frans Kaashoek
698b8fb598
update for 2014
2014-08-28 17:28:40 -04:00
Robert Morris
e2b4583d05
xx
2014-08-28 17:04:47 -04:00
Robert Morris
8d618cab78
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2014-08-28 16:13:58 -04:00
Robert Morris
2b2c1971fc
write log blocks from cache only at end of transaction
2014-08-28 16:06:12 -04:00
Robert Morris
11183588dc
nits
2014-08-28 06:27:01 -04:00
Robert Morris
48aa917403
i think this is a working concurrent logging scheme
2014-08-28 05:57:47 -04:00
Robert Morris
71453f72f2
a start at concurrent FS system calls
2014-08-27 17:15:30 -04:00
Robert Morris
12eeefc72d
comments
2014-08-27 14:14:52 -04:00
Robert Morris
2c56547272
every iput() and namei() must be inside a transaction
2014-08-04 13:06:48 -04:00
Robert Morris
020c8e2384
use acquire/release to force order for pid=np->pid;np->state=RUNNING
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for bug reported by symingz@gmail.com and cs1100254@cse.iitd.ernet.in
2014-08-04 06:13:49 -04:00
Frans Kaashoek
86188d9d49
newer versions of qemu have different binary names (per Joel Nider <joel@nider.org>)
2014-07-31 11:15:15 -04:00
Stephen Tu
ff2783442e
Correct a security bug in copyuvm()
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copyuvm() should not allow new copied pages to inherit more
permissions than the original pages.
2013-03-04 16:16:54 -05:00
Cam Tenny
241c068066
Prevent extra rebuild of fs.img by keeping intermediate object files.
2012-10-24 18:52:40 -04:00
Frans Kaashoek
c440b5cd97
Use static assert instead of _LP64 (thanks Eddie!)
2012-09-10 21:58:18 -04:00
Frans Kaashoek
cf57e525c1
Remove -m32 flag from native gcc compiler
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But check that mkfs.c is building with LP64
2012-09-07 17:39:04 -04:00
Robert Morris
2ae8392a5c
make the book happy
2012-08-28 14:41:08 -04:00
Robert Morris
792d83cad1
nits
2012-08-28 14:11:23 -04:00
Robert Morris
c1ee7eb4d3
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2012-08-28 12:57:13 -04:00
Robert Morris
8960f60b30
junk
2012-08-28 12:57:05 -04:00
Austin Clements
951b77f7ec
Various fixes and improvements to printpcs
...
Search for an addr2line that supports elf32-i386. Don't print the
path of addr2line as a side-effect of which. Don't uselessly pipe
"grep '^ '" to addr2line's stdin. Enable as many pretty-printing and
otherwise helpful options as possible (this makes the output *much*
more pleasant on modern addr2lines).
2012-08-24 14:51:52 -04:00
Frans Kaashoek
020acb4f10
For the convenience of students
2012-08-23 09:35:00 -04:00
Frans Kaashoek
6650cc934a
Use addr2line (or i386-jos-elf-addr2line, if you cross compile)
2012-08-22 21:25:19 -04:00
Frans Kaashoek
3fb7eceea7
Runoff still complaints these lines are too long, but it is now ok on printout
2012-08-22 21:24:13 -04:00
Frans Kaashoek
f3f4b0fd88
chmod +x
2012-08-22 20:54:47 -04:00
Frans Kaashoek
c2d393df13
Decode getcallerpcs() (thanks to Peter Froehlich)
2012-08-22 20:51:29 -04:00
Frans Kaashoek
95692c4a8c
Remove left-over from some logging plan making complete syscalls atomic
...
0 is not a system call (thanks to Peter Froehlich)
2012-08-22 20:28:58 -04:00
Frans Kaashoek
432acbaf9e
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2012-08-22 20:20:17 -04:00
Frans Kaashoek
4ce832ddd2
Remove unused argument to setupkvm (thanks to Peter Froehlich)
2012-08-22 20:19:37 -04:00
Frans Kaashoek
70c555574a
Remove unused argument from lapicinit (thanks to Peter Froehlich)
2012-08-22 20:13:43 -04:00
Frans Kaashoek
b08d16f61d
Fix from Peter Froehlich
2012-08-22 20:07:04 -04:00
Austin Clements
9d59eb0151
Make fetchint and fetchstr use proc instead of taking a struct proc
...
Previously, these were inconsistent: they used their struct proc
argument for bounds checking, but always copied the argument from the
current address space (and hence the current process). Drop the
struct proc argument and always use the current proc.
Suggested by Carmi Merimovich.
2012-02-17 23:20:13 -05:00
Robert Morris
12abb1a561
don't let dirty blocks be evicted from cache!
2011-10-14 10:23:23 -04:00
Robert Morris
38eee5bca7
more FS comment clarification
2011-10-11 10:11:53 -04:00
Robert Morris
a5fbfe418a
clarify some FS comments
2011-10-11 06:41:37 -04:00
Austin Clements
d73dd097a5
Fix compile error on newer gcc's
2011-09-30 15:28:33 -04:00
Frans Kaashoek
0ca1c0407d
Merge branch 'master' of git+ssh://amsterdam.csail.mit.edu/home/am0/6.828/xv6
2011-09-27 13:00:20 -04:00
