Robert Morris
4de161f973
don't panic if a program frees all its memory with sbrk().
...
if a program sbrk()'s to a non-page-boundary, don't free that page.
corresponding usertests.
2019-09-20 11:35:27 -04:00
Robert Morris
ca30cac702
more incorrect cast to uint
2019-09-20 10:27:03 -04:00
Robert Morris
402e7b5605
fix a potential kernel crash
...
add a regression test for it
2019-09-20 09:41:03 -04:00
Robert Morris
57e40a0204
nits
2019-09-20 06:02:47 -04:00
Frans Kaashoek
ba1c42849a
print name at start of test
2019-09-19 15:39:05 -04:00
Frans Kaashoek
25e6803e17
a comment
2019-09-19 15:22:45 -04:00
Frans Kaashoek
3f6e372a29
make exec test self contained
2019-09-19 15:14:52 -04:00
Frans Kaashoek
f6a37c17f2
Standarize the way tests are run and report errors
...
Support running one test, by specifying the name as a command argument to usertests
2019-09-19 06:58:28 -04:00
Robert Morris
0d01de2a32
Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv
2019-09-17 06:08:10 -04:00
Robert Morris
2df42355f7
all of PTE_FLAGS
2019-09-17 06:07:58 -04:00
Xi Wang
b150908354
add `-bios none' to silence qemu
...
QEMU 4.1+ emits warnings if -bios is not given, as newer versions
will load the OpenSBI firmware in this case. Pass `-bios none' to
avoid this issue.
2019-09-13 17:23:36 -04:00
Robert Morris
036b5edf12
set architecture riscv:rv64 -- fix gdb trampoline disassembly, thanks jonathan
2019-09-12 10:48:48 -04:00
Robert Morris
35010f0d0f
error exit status is 1
2019-09-11 10:04:40 -04:00
Frans Kaashoek
7e6c37e67e
Support exit status for exit/wait
...
One test case for returning a exit status
Passes usertests, but haven't used it to simplify tests
2019-09-10 12:30:10 -04:00
Frans Kaashoek
035cca95fe
Make the end variable be really at the end of bss, and delete + 4096 in freerange()
2019-09-08 15:19:19 -04:00
Robert Morris
e5b7fa62cc
thanks to Anthony Coulter
2019-09-08 06:51:58 -04:00
Robert Morris
fc337af2b6
fix a grep bug
2019-09-05 16:50:55 -04:00
Robert Morris
c0beeccb1b
have echo use FD 1 for clarity
2019-09-04 10:12:53 -04:00
Robert Morris
25e113138d
sfence.vma in trampoline as well
2019-09-03 16:29:48 -04:00
Robert Morris
9b9e2dd0f2
fix sfence_vma comment
2019-09-03 16:25:11 -04:00
Robert Morris
86a1d4b295
sfence_vma after satp
2019-09-03 15:45:07 -04:00
Robert Morris
64b93d175a
user printf(1 -> printf(
2019-08-27 13:13:03 -04:00
Frans Kaashoek
a3f6d9fd1e
cow moved to xv6-riscv-fall19
2019-08-26 21:16:33 -04:00
Frans Kaashoek
92c3c02098
RISC-V port doesn't borrow this code
2019-08-26 08:49:50 -04:00
Frans Kaashoek
510bcde894
Add major/minor/mkdev
...
Maybe apply this change to master
2019-08-23 19:41:53 -04:00
Frans Kaashoek
7241838b4c
Move labs into 6.828 repo. The lab text isn't dependent on specific
...
xv6 code. Lab submission instructions etc. are likely going to be more
MIT 6.828 specific.
2019-08-20 20:23:18 -04:00
Frans Kaashoek
c612d452fd
validateint doesn't test something interesting on RISC-V; delete it.
2019-08-20 13:04:12 -04:00
Frans Kaashoek
b564fca246
Rationalize some constants in usertests
2019-08-20 12:58:00 -04:00
Frans Kaashoek
d98ddadd79
Also release buffer on failed copyout
2019-08-20 12:46:56 -04:00
Frans Kaashoek
6005ef5a1c
Release buffer also when copyin fails
2019-08-20 11:57:24 -04:00
Frans Kaashoek
d9818b89e1
512 -> BSIZE
2019-08-20 11:56:56 -04:00
Frans Kaashoek
a825f22cf8
Merge remote-tracking branch 'origin/master' into riscv
2019-08-19 19:27:29 -04:00
Dan Cross
82638c019c
Avoid rereading the superblock in bfree
...
The superblock is read when the first process returns to
userspace (via the call to `iinit` from the first invocation of
`forkret`, when `first` is still set to 1) and cached in a
global; it is treated as immutable from that point on. There is
no reason to re-read it in bfree.
Removing this call seems to have simply been missed in 8320d61b
2019-08-19 19:25:43 -04:00
Frans Kaashoek
21ad8c76bc
A few now unused DOC
2019-08-19 18:12:19 -04:00
Frans Kaashoek
ce565ae04a
dan cross
2019-08-19 14:46:33 -04:00
Frans Kaashoek
e10f797762
Merge remote-tracking branch 'origin/master' into riscv
2019-08-19 13:35:47 -04:00
Dan Cross
0581c37baf
Removed unused dirlookup argument in create
...
The `off` argument to `dirlookup` is optional. It
was not being used in the `dirlookup` call in `create`,
so pass NULL instead and delete the unused local.
Signed-off-by: Dan Cross <cross@gajendra.net>
2019-08-19 13:22:35 -04:00
Frans Kaashoek
2501560cd6
Cosmetic cleanup: fsinit reads sb and calls loginit. initialize icache
...
in main.c and don't make it disk specific; the icache is shared. This
doesn't matter since we have only one disk, but conceptually cleaner
and maybe helpful to students for mount lab.
2019-08-18 14:35:11 -04:00
Frans Kaashoek
a9953236cc
x
2019-08-17 12:52:25 -04:00
Frans Kaashoek
e61377bf8a
Update write up to reflect new test cases.
2019-08-17 12:33:32 -04:00
Frans Kaashoek
5498ee2e92
Draft mount/umount lab as an alternative lab for fs.html
...
fs.html should perhaps be split in small homeworks as in previous
years in preparation for lectures and/or as demos during lecture.
2019-08-12 10:25:55 -04:00
Frans Kaashoek
e398a9815c
Wrap state of disk driver in a struct so that it is easier to support
...
several disks (e.g., in a mount lab).
2019-08-12 07:20:32 -04:00
Robert Morris
d96a8c5661
add alarmtest.c to the repository
...
they don't have to modify alarmtest.c, so we can use the
original version to test, to make it harder to cheat.
2019-08-05 02:04:44 -04:00
Robert Morris
deec67f05d
alarm stuff
2019-08-03 07:12:00 -04:00
Frans Kaashoek
fdea265489
two notes
2019-08-02 16:42:55 -04:00
Frans Kaashoek
564d10bb22
Add simple crash recovery assignment to fs lab
2019-08-02 16:29:25 -04:00
Robert Morris
c5163e4a42
nits
2019-08-02 16:22:56 -04:00
Robert Morris
3bee885ed7
some XXX questions
2019-08-02 14:51:04 -04:00
Robert Morris
e788af9b81
oops, back to alarm()
2019-08-02 13:25:57 -04:00
Robert Morris
0b5c01d429
Merge branch 'riscv' of g.csail.mit.edu:xv6-dev into riscv
2019-08-02 13:18:37 -04:00
