Started 1 yr 4 mo ago
Took 1 hr 41 min

Success Build #365 (Apr 9, 2019 12:36:38 PM)

Build Artifacts
  1. QEMU logging: updated DryOS and VxWorks task switch handling

    It was quite hard to pass the test suite, as there were lots of edge cases:

    - context switch may happen either in a timer interrupt, or in a regular task (e.g. msleep, sempahores and so on)
    - context switch is not atomic - it happens a few instructions (or function calls!) afterh updating the current task pointer
    - until the registers are swapped for the new task, we are still on the stack of the previous task
    - there may be dummy task switches (i.e. from one task to the same task)
    - an interrupt can occur in the middle of a (non-atomic) context switch (!)
    - VxWorks models do not even use a unique task ID (!)

    Result: QEMU no longer crashes during logging tests!

    Issue: these cameras do not appear to use an unique task ID. Workaround: assign our own task IDs. (detail / hgweb)

Started by user Alex

Revision: 9049426c8cceaf52d9dbfcc6f5f516742652010d