thorpej 9473b3b786 Fix a problem with intr_unmask() that can cause a forever-loop:
- When handling the source-is-masked case in the interrupt vector, set the
  interrupt bit in a new ci_imasked field and ensure the bit is cleared
  from ci_ipending.
- In intr_unmask(), transfer the bit from ci_imasked to ci_ipending for
  non-level-sensitive interrupts (the PIC does the work for us in the
  level-sensitive case), and only force pending interrupts to be processed
  in this case.  (In all cases, make sure the now-unmasked bit is cleared
  from ci_imasked.)

Before, the bit was left in ci_ipending so as not to use edge-triggered
interrupts while the source is masked, but Xspllower() relies on the
pending bits getting cleared.

Tested by forcing all wm(4) interrupts on my test system though an
intr_mask() / softint / intr_unmask() cycle and exercising the network
heavily.
2019-12-30 23:32:29 +00:00
2019-12-28 04:23:26 +00:00
2019-12-23 06:45:36 +00:00
2019-12-27 09:17:59 +00:00
2019-12-27 10:13:59 +00:00
2019-12-27 07:41:22 +00:00
2019-12-27 09:25:57 +00:00

NetBSD

NetBSD is a free, fast, secure, and highly portable Unix-like Open Source operating system. It is available for a wide range of platforms, from large-scale servers and powerful desktop systems to handheld and embedded devices.

Building

You can cross-build NetBSD from most UNIX-like operating systems. To build for amd64 (x86_64), in the src directory:

./build.sh -U -u -j4 -m amd64 -O ~/obj release

Additional build information available in the BUILDING file.

Binaries

Testing

On a running NetBSD system:

cd /usr/tests; atf-run | atf-report

Troubleshooting

Latest sources

To fetch the main CVS repository:

cvs -d anoncvs@anoncvs.NetBSD.org:/cvsroot checkout -P src

To work in the Git mirror, which is updated every few hours from CVS:

git clone https://github.com/NetBSD/src.git
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