- Don't print redirect target on LAPIC.
- Fix DEST_MASK:
- DEST_MASK is not 1 bit but 2 bit.
- Add missing "\0"s to print decoded name correctly.
- Support both LAPIC and I/O APIC correctly in apic_format_redir().
- Improve output of some bits using with snprintb()'s "F\B\1" and ":\V".
optimisation of the bouncing = false case.
Drain the write buf (aka DSB) in more cases
Catch all CPUs that support speculation. (thunderx isn't CPU_CORTEX)
- Rename macros:
- ICR, LVT and MSIDATA can share the bit definitions. Remove redundant
definitions and use the common macros.
- Consistently use LAPIC_LVT_ for all local vector table's macro names.
- Use __BITS().
- Add definition for TSC-deadline (LAPIC_LVT_TMM_TSCDLT).
and also in nvme_dmamem_alloc(), allow as many DMA segment as would be
maximally needed for the size, rather than hard coding '2' for the form
and '1' for the latter.
now ld@nvme on i386 doesn't crash and i see at least 1.3GB/sec.
In the previous behavior vforking parent was keeping pointer to a child
and checking whether it clears a PL_PPWAIT in its bitfield p_lflag. However
a child can go invalid between exec/exit event from child and waking up
vforked parent and this can cause invalid pointer read and in the worst
scenario kernel crash.
In the new behavior vforked child keeps a reference to vforked parent LWP
and sets a value l_vforkwaiting to false. This means that vforked child
can finish its work, exec/exit and be terminated and once parent will be
woken up it will read its own field whether its child is still blocking.
Add new field in struct lwp: l_vforkwaiting protected by proc_lock.
In future it should be refactored and all PL_PPWAIT users transformed to
l_vforkwaiting and next l_vforkwaiting probably transformed into a bit
field.
This is another attempt of fixing this bug after <rmind> from 2012 in
commit:
Author: rmind <rmind@NetBSD.org>
Date: Sun Jul 22 22:40:18 2012 +0000
fork1: fix use-after-free problems. Addresses PR/46128 from Andrew Doran.
Note: PL_PPWAIT should be fully replaced and modificaiton of l_pflag by
other LWP is undesirable, but this is enough for netbsd-6.
The new version no longer performs unsafe access in l_lflag changing the
LP_VFORKWAIT bit.
Verified with ATF t_vfork and t_ptrace* tests and they are no longer
causing any issues in my local setup.
Fixes PR/46128 by Andrew Doran
a. there are more rc.conf.append arch than only for x86, deal with them too.
b. populate new /etc/defaults/rc.conf files
2. merge sed patterns
3. deal with empty exclude lists
won't call ehci_init(), so don't call ehci_detach() in ehci_pci_detach().
Fixes a panic seen on a recent Lenovo machine, which has an USB 1.1
controller; ehci_detach() was getting called while 'sc' had not been
completely initialized.
If a process is exiting and it was not asked to relock proc_lock, do not
free the mutex as it causes panic. This bug is a timing bug as the faulty
condition is not deterministic and fires only somtimes, but is quickly
triggerable when executed in an infinite loop.
Detected and reported with LLDB test-suite by <mgorny>
isaki