diff options
| author | jdolecek <jdolecek@NetBSD.org> | 2018-06-10 17:54:51 +0000 |
|---|---|---|
| committer | jdolecek <jdolecek@NetBSD.org> | 2018-06-10 17:54:51 +0000 |
| commit | 1af62cb858afe3fea2c3f0edf9943ce6691372eb (patch) | |
| tree | dd4c3362457a636dca5dd9d1d1ec1470fd653b52 /sys/modules/examples/panic_string | |
| parent | 60e20a669f04f431a1625e9fb68ab81a0a1ae3ad (diff) | |
convert the (still disabled) 'direct write' for pipes to use the
experimental PMAP_DIRECT if available; the direct code paths now survive
longer than the pmap_enter() variant, but still triggers panic during
build.sh tools run; remove some obsolete sysctls
add some XXXs to mark places which need attention to make this more stable
Note: the loan case is now actually significantly slower than the
non-loan case on MP systems, due to synchronous IPIs triggered by
marking the page read-only by uvm_loan(); this is being discussed
in the email thread
https://mail-index.netbsd.org/tech-kern/2018/05/21/msg023441.html
that is basically the same issue due to which loaning was disabled
for sosend()
Diffstat (limited to 'sys/modules/examples/panic_string')
0 files changed, 0 insertions, 0 deletions
