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xv6-riscv/kernel
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Frans Kaashoek dabbc348bc Maybe fix two races identified by rtm (thx!): 
- during exit(), hold p's parent lock and p's lock across all changes
to p and its parent (e.g., reparenting and wakeup1).  the lock
ordering between concurrent exits of children, parent, and great
parent might work out because processes form a tree.

- in wakeup1() test and set p->state atomically by asking caller to
have p locked.

a correctness proof would be desirable.
2019-07-06 16:38:41 -04:00
..
bio.c
eliminate ramdisk
2019-06-13 06:57:38 -04:00
buf.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
console.c
FD_DEVICE
2019-06-13 10:29:27 -04:00
date.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
defs.h
try to continue from walk() failing to allocate a page-table page
2019-07-02 11:45:06 -04:00
elf.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
entry.S
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
exec.c
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
fcntl.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
file.c
FD_DEVICE
2019-06-13 10:29:27 -04:00
file.h
FD_DEVICE
2019-06-13 10:29:27 -04:00
fs.c
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
fs.h
FD_DEVICE
2019-06-13 10:29:27 -04:00
kalloc.c
virtio disk driver
2019-06-13 06:49:02 -04:00
kernel.ld
virtio disk driver
2019-06-13 06:49:02 -04:00
kernelvec.S
timer interrupt in the kernel -> yield
2019-07-01 13:46:11 -04:00
log.c
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
main.c
eliminate ramdisk
2019-06-13 06:57:38 -04:00
memlayout.h
clean up virtio code
2019-06-13 09:40:17 -04:00
param.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
pipe.c
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
plic.c
clean up virtio code
2019-06-13 09:40:17 -04:00
proc.c
Maybe fix two races identified by rtm (thx!):
2019-07-06 16:38:41 -04:00
proc.h
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
ramdisk.c
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
riscv.h
Avoid two cores selecting the same process to run
2019-07-02 13:40:33 -04:00
sleeplock.c
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
sleeplock.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
spinlock.c
Remove some debugging code
2019-07-02 20:52:30 -04:00
spinlock.h
Avoid two cores selecting the same process to run
2019-07-02 13:40:33 -04:00
start.c
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
stat.h
Make size in stat.h be a uint64
2019-07-04 08:57:23 -04:00
string.c
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
swtch.S
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
syscall.c
Merge branch 'riscv' into riscv-proc
2019-07-02 14:19:31 -04:00
syscall.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
sysfile.c
Merge branch 'riscv' into riscv-proc
2019-07-02 14:19:31 -04:00
sysproc.c
Merge branch 'riscv' into riscv-proc
2019-07-02 14:19:31 -04:00
trampoline.S
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
trap.c
Merge branch 'riscv' into riscv-proc
2019-07-02 14:19:31 -04:00
types.h
separate source into kernel/ user/ mkfs/
2019-06-11 09:57:14 -04:00
uart.c
Checkpoint switching to per-process locks, in attempt clarify xv6's
2019-07-02 09:14:47 -04:00
virtio_disk.c
x
2019-07-01 08:28:14 -04:00
virtio.h
Introduce alloc3_desc and UsedArea to make code easier to read
2019-07-01 08:20:35 -04:00
vm.c
try to continue from walk() failing to allocate a page-table page
2019-07-02 11:45:06 -04:00