xhy/202302520026
d687730d8a
实现基本的功能，但是children过不了
2 months ago
xhy/202302520026
c7c13ef290
Task3: 实现 sysinfo 系统调用（包含系统信息收集、用户态拷贝等功能）
2 months ago
0802d56a9b
x
3 years ago
4a88273db5
oops. scheduler() inherits the interrupt status of the
...
most recent process to run, so it must explicitly
turn them on again. It would be better if cpu->intena
were really thread->intena.
3 years ago
f376ad7f1f
scheduler()'s intr_on() is in the wrong place, reflecting
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the locking scheme from long ago.
3 years ago
348cf7fee4
forkret first memory model
3 years ago
ccb7bd14c7
Merge branch 'riscv' into uvm-perm
3 years ago
cd6207a972
Merge branch 'riscv-killed' into riscv
3 years ago
2f0b4d698b
Use pp instead of np to be more consistent
3 years ago
1d4c437ea1
Use uint64 (thanks carlclone and Harry Porter)
3 years ago
899cc02660
Experiment with being more precise setting permissions for user pages.
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Growing adds R|W pages (without X). Exec() marks the stack only R|W.
Probably could setup permissions for text and data better if we call
ld with --no-omagic instead of -N.
3 years ago
62bc610424
cosmetic changes (thanks Harry Porter)
3 years ago
48d1a7ffa5
Add USED to states (thanks Harry Porter)
3 years ago
4f716c8550
Use p->lock to read p->killed
3 years ago
429c7b717e
Use atomic store_n and load_n
3 years ago
975f3b31d3
Clean up using killed()
3 years ago
4087a6e7fc
Read and write p->killed using atomics
3 years ago
7d8bfdcbe3
nothing much
3 years ago
38084bcea8
proc_tree_lock -> wait_lock
5 years ago
ba8d9f4808
don't over-lock in exit()
5 years ago
47323c97cf
oops
5 years ago
2875069973
Frans' proc_lock.
5 years ago
b48ea5d220
free proc if kalloc fails
5 years ago
d4cecb269f
kvmmake() makes a complete kernel page table, matching Figure 3.3
5 years ago
8dc71a257d
handle another out-of-memory in fork(). the policy here is not consistent,
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since other calls (e.g. exec()) panic on out of memory.
5 years ago
bc51626aab
try to handle a few of the possible out-of-memory errors in fork()
5 years ago
a8dd44cf59
modify uvmunmap() to be in aligned pages
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fix a bug in fork() recovering from out of memory
5 years ago
0502342335
Merge pull request #9 from d0iasm/riscv
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update initcode to avoid using the compressed extension
6 years ago
7f35d7a14e
modify each page in usertests countfree()
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get rid of static for walk() and freewalk()
6 years ago
1e72d5ca08
cpu->scheduler -> cpu->context to reduce confusion
6 years ago
5494c91705
rename p->tf to p->trapframe, for consistency with p->context
6 years ago
8b052656a0
update initcode to avoid using the compressed extension
6 years ago
e7ffb74ad1
fix a potential memory leak
6 years ago
2821d43cc9
nits
6 years ago
37df68e5de
story is more complex than I thought.
6 years ago
d175beadf5
bug fix: reparent() sometimes deadlocked
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bug fix: exit() sometimes released a different parent lock than it acquired
usertests
6 years ago
4de161f973
don't panic if a program frees all its memory with sbrk().
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if a program sbrk()'s to a non-page-boundary, don't free that page.
corresponding usertests.
6 years ago
7e6c37e67e
Support exit status for exit/wait
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One test case for returning a exit status
Passes usertests, but haven't used it to simplify tests
6 years ago
21ad8c76bc
A few now unused DOC
7 years ago
2501560cd6
Cosmetic cleanup: fsinit reads sb and calls loginit. initialize icache
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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.
7 years ago
cf48b24c03
beautify console.c
7 years ago
ea95a6654c
trampin -> uservec
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trampout -> userret
7 years ago
4e62de64cd
fix an exit/exit deadlock -> one more locking protocol violation
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increase timer rate from 1/second to 10/second
7 years ago
9a817bd134
rationalize some vm function names
7 years ago
a77287e924
no more PAGEBREAK
7 years ago
54178ad94d
simplify kernel mapping calls
7 years ago
55bc96d419
a few core -> CPU
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get rid of PDF generating support
7 years ago
6c78af4a57
fix mapkstack
7 years ago
6b379e4707
-MD and TRAPFRAME
7 years ago
c5d48db045
Merge branch 'riscv-kstack' into riscv
7 years ago
xhy/202302520026
Robert Morris
Frans Kaashoek
Asami Doi