| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2019-07-08 | Merge branch 'riscv-proc' into riscv | Frans Kaashoek | |
| 2019-07-08 | Merge branch 'riscv-proc' of g.csail.mit.edu:xv6-dev into riscv-proc | Robert Morris | |
| 2019-07-08 | holding p->lock all the way through state=RUNNABLE means we don't need EMBRYO | Robert Morris | |
| 2019-07-08 | Update runoff list for producing xv6.pdf | Frans Kaashoek | |
| 2019-07-07 | eliminate ptable. ptable.lock -> pid_lock. | Robert Morris | |
| 2019-07-07 | nits | Robert Morris | |
| 2019-07-07 | avoid a double-lock of initproc->lock if child of init is reparenting | Robert Morris | |
| 2019-07-07 | Merge branch 'riscv-proc' of g.csail.mit.edu:xv6-dev into riscv-proc | Robert Morris | |
| 2019-07-07 | another fork test | Robert Morris | |
| 2019-07-06 | Maybe fix two races identified by rtm (thx!): | Frans Kaashoek | |
| - 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. | |||
| 2019-07-05 | back-port fork/exit/exit tests to xv6-riscv | Robert Morris | |
| 2019-07-05 | two exit/exit tests | Robert Morris | |
| 2019-07-04 | Make size in stat.h be a uint64 | Frans Kaashoek | |
| Supporting print long using %l (a bit of cheat) Modify ls to print size using %l We should probably update size in inode too. | |||
| 2019-07-04 | x | Frans Kaashoek | |
| 2019-07-03 | Simplify wakeup1 | Frans Kaashoek | |
| 2019-07-03 | Apply some corresponding bug fixes from wq branch here | Frans Kaashoek | |
| 2019-07-02 | Remove some debugging code | Frans Kaashoek | |
| 2019-07-02 | Fix a lost wakeup bug: the disk driver's wakeup() can run after the | Frans Kaashoek | |
| reading process acquired p->lock and released virtio lock in sleep(), but before the process had set p->status to SLEEPING, because the wakeup tested p->status without holding p's lock. Thus, wakeup can complete without seeing any process SLEEPING and then p sets p->status to SLEEPING. Fix some other issues: - Don't initialize proc lock in allocproc(), because freeproc() sets np->state = UNUSED and allocproc() can choose np and calls initlock() on the process's lock, releasing np's lock accidentally. Move initializing proc's lock to init. - Protect nextpid using ptable.lock (and move into its own function) Some clean up: - Don't acquire p->lock when it p is used in a private way (e.g., exit()/grow()). - Move find_runnable() back into scheduler(). | |||
| 2019-07-02 | Merge branch 'riscv' into riscv-proc | Frans Kaashoek | |
| 2019-07-02 | x | Frans Kaashoek | |
| 2019-07-02 | Don't start processes at the end of the proc table | Frans Kaashoek | |
| 2019-07-02 | Avoid two cores selecting the same process to run | Frans Kaashoek | |
| 2019-07-02 | try to continue from walk() failing to allocate a page-table page | Robert Morris | |
| 2019-07-02 | avoid allocproc() returning a struct proc with non-zero p->sz | Robert Morris | |
| 2019-07-02 | COW tests | Robert Morris | |
| 2019-07-02 | Checkpoint switching to per-process locks, in attempt clarify xv6's | Frans Kaashoek | |
| locking plan, which is a difficult to understand because ptable lock protects many invariants. This implementation has a bug: once in a while xv6 unlocks a proc lock that is locked by another core. | |||
| 2019-07-02 | don't enable interrupts until done with sstatus, scause, &c | Robert Morris | |
| 2019-07-01 | oops, don't hold mycpu() result across intr_off() | Robert Morris | |
| 2019-07-01 | have fork() fail, not panic, if not enough phys mem | Robert Morris | |
| 2019-07-01 | sbrk() returns a pointer, so it should be 64 bits | Robert Morris | |
| 2019-07-01 | oops, don't hold mycpu() result across intr_off() | Robert Morris | |
| 2019-07-01 | timer interrupt in the kernel -> yield | Robert Morris | |
| 2019-07-01 | Checkpoint some progress compiling xv6.pdf | Frans Kaashoek | |
| 2019-07-01 | x | Frans Kaashoek | |
| 2019-07-01 | Introduce alloc3_desc and UsedArea to make code easier to read | Frans Kaashoek | |
| 2019-06-13 | FD_DEVICE | Robert Morris | |
| 2019-06-13 | for spinlocks, use gcc intrinsics, but say what they compile to | Robert Morris | |
| 2019-06-13 | clean up virtio code | Robert Morris | |
| 2019-06-13 | eliminate ramdisk | Robert Morris | |
| 2019-06-13 | virtio disk driver | Robert Morris | |
| 2019-06-11 | separate source into kernel/ user/ mkfs/ | Robert Morris | |
| 2019-06-06 | gdb backtraces: -ggdb, -fno-omit-frame-pointer, BSIZE=1024 | Robert Morris | |
| 2019-06-06 | fix a create()/unlink() deadlock | Robert Morris | |
| 2019-06-06 | add plic.c | Robert Morris | |
| 2019-06-06 | add kernelvec | Robert Morris | |
| 2019-06-05 | make -O work with asm volatile(...) | Robert Morris | |
| 2019-06-05 | clean up -Wall | Robert Morris | |
| 2019-06-05 | push_off() and pop_off() in myproc() | Robert Morris | |
| 2019-06-05 | spinlocks using gcc intrinsics | Robert Morris | |
| push_off() / pop_off() set up per-hart plic stuff so all harts get device interrupts | |||
| 2019-06-05 | start at support for multiple CPUs | Robert Morris | |
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index : xv6-riscv | |
| MIT xv6-RISCV kernel modified to RV64I base integer extension | Aditya N. Naik |
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