Frans Kaashoek
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b4c2851bb3
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Be principled: acquire lock first
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2020-11-05 19:50:46 -05:00 |
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Robert Morris
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38084bcea8
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proc_tree_lock -> wait_lock
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2020-11-05 19:50:46 -05:00 |
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Robert Morris
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ba8d9f4808
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don't over-lock in exit()
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2020-11-05 19:50:46 -05:00 |
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Robert Morris
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47323c97cf
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oops
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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2875069973
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Frans' proc_lock.
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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b48ea5d220
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free proc if kalloc fails
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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5e392531c0
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hopefully make writei more correct
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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e1bb4c7434
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test for closed pipe or killed on every char, not just if pipe full
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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329935eca8
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fix uart.c to work with UART_TX_BUF_SIZE == 1
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2020-11-05 06:56:51 -05:00 |
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Robert Morris
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13dccb0380
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consolewrite does not need cons.lock -- can lead to sleep() with lock held
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2020-11-05 06:56:51 -05:00 |
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Frans Kaashoek
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d4cecb269f
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kvmmake() makes a complete kernel page table, matching Figure 3.3
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2020-10-14 20:28:16 -04:00 |
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Robert Morris
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21cfc97809
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set riscv use-compressed-breakpoints yes
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2020-10-14 20:28:16 -04:00 |
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Fumiya Shigemitsu
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93378618df
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Fix minor typos
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2020-10-14 20:28:14 -04:00 |
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Robert Morris
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bebecfd6fd
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more explicable scratch area size for machine-mode timer interrupts
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2020-10-05 19:30:27 -04:00 |
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Frans Kaashoek
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c199afe4c8
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Don't map the CLINT, since it never used in the kernel in supervisor mode
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2020-10-05 19:30:27 -04:00 |
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Robert Morris
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c61cc69413
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eliminate virtio DMA into kernel stacks.
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2020-10-05 19:30:27 -04:00 |
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Robert Morris
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3092fe2c9e
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improve virtio_disk comments; bring it closer to wording in the spec
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2020-10-05 19:30:27 -04:00 |
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Robert Morris
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548ffc97e1
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don't unpin if recovering -- the resulting negative refcnt suppresses next unpin
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2020-10-05 19:30:27 -04:00 |
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Robert Morris
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aeaf610c67
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avoid deadlock by disk intr acking interrupt first, then processing ring
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2020-10-05 19:30:27 -04:00 |
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Robert Morris
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3c70be9070
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often causes deadlock after a few minutes
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2020-10-05 19:30:27 -04:00 |
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Fumiya Shigemitsu
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9c8d1e2909
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Fix minor typos
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2020-10-03 16:36:20 -04:00 |
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Frans Kaashoek
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f2827b2c7b
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Clarify CLINT and PLIC acronym
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2020-10-03 16:36:20 -04:00 |
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Frans Kaashoek
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8ffdfad990
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Add s to many printf statements that expect it (thanks Cece Chu)
Add dirtest to the list of tests
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2020-10-03 16:36:20 -04:00 |
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Frans Kaashoek
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6750608824
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When either_copyin/out fails, return an error from write/read
Add a test to check that read/write return an error
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2020-10-03 16:36:20 -04:00 |
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Robert Morris
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8c67f96b72
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better grind error messages
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2020-10-03 16:36:20 -04:00 |
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Frans Kaashoek
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b418a34537
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Merge pull request #25 from matth79/patch-1
Corrects order of UART RX/TX interrupt enable bits
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2020-10-03 16:33:41 -04:00 |
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Matt Harvey
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6781ac0036
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Corrects order of UART RX/TX interrupt enable bits
(per http://byterunner.com/16550.html and manually tested in qemu bare metal echo)
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2020-09-14 14:49:57 -07:00 |
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Frans Kaashoek
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79899c7479
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Delete doc dir because they take much space in student submissions
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2020-08-28 16:21:07 -04:00 |
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Robert Morris
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490f91ab53
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move panicked check to uart.c
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2020-08-28 09:00:41 -04:00 |
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Robert Morris
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748809e1b3
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suppress write() output after panic()
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2020-08-28 09:00:41 -04:00 |
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Frans Kaashoek
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de434fd933
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Remove obselete ifdef that shouldn't have been there ever
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2020-08-28 09:00:41 -04:00 |
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Robert Morris
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0b4e78f3a9
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fix usertests to pass all the riscv-sol-fall20 solutions.
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2020-08-28 09:00:41 -04:00 |
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Frans Kaashoek
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0bb2533f73
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Adjust a few prototypes to be explicit that they don't take arguments
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2020-08-21 11:00:45 -04:00 |
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Robert Morris
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2a4a8764a5
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touch sbrk()-allocated memory to make sure it exists
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2020-08-21 11:00:45 -04:00 |
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Robert Morris
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5860dcd07d
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usertest for exec() out of memory recovery
and fix a few exec() bugs
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2020-08-21 11:00:45 -04:00 |
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Frans Kaashoek
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d4d487731a
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Use the major number defined in file.h. The minor number is ignored;
might as well use 0.
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2020-08-21 11:00:45 -04:00 |
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Frans Kaashoek
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3c25112f38
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Delete some obselete stuff
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2020-08-21 11:00:45 -04:00 |
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Robert Morris
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95dad4c061
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x
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2020-08-17 08:18:23 -04:00 |
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Robert Morris
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f2ec6777bd
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fix a bug in the out-of-memory handling code in exec
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2020-08-17 08:18:23 -04:00 |
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Robert Morris
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8dc71a257d
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handle another out-of-memory in fork(). the policy here is not consistent,
since other calls (e.g. exec()) panic on out of memory.
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2020-08-17 08:18:23 -04:00 |
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Robert Morris
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bc51626aab
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try to handle a few of the possible out-of-memory errors in fork()
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2020-08-17 08:18:23 -04:00 |
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Robert Morris
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a8dd44cf59
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modify uvmunmap() to be in aligned pages
fix a bug in fork() recovering from out of memory
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2020-08-17 08:18:23 -04:00 |
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Robert Morris
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e283514ad0
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pa isn't needed in the uvmunmap() loop
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2020-08-17 08:18:23 -04:00 |
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Frans Kaashoek
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56e7cebdb9
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Update to the latest specs
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2020-08-10 20:28:47 -04:00 |
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Frans Kaashoek
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84dcf8a738
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copyright and 6.S081
|
2020-08-10 19:41:57 -04:00 |
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Frans Kaashoek
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fa71d7fca2
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Ack bug finders.
|
2020-08-10 16:43:33 -04:00 |
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Frans Kaashoek
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5dace67371
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Typo (thanks yt <jaichenhengjie@qq.com>)
|
2020-08-10 16:43:33 -04:00 |
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Frans Kaashoek
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96a20b0c0f
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Generate initcode without compressed extensions
|
2020-08-10 13:55:46 -04:00 |
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Frans Kaashoek
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0502342335
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Merge pull request #9 from d0iasm/riscv
update initcode to avoid using the compressed extension
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2020-08-10 13:54:58 -04:00 |
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Frans Kaashoek
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93ca5550b8
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Merge pull request #10 from takahirox/VirtioInterruptAck
Write virtio interrupt ack register in virtio_disk_intr()
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2020-08-10 13:24:57 -04:00 |
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