userret() which resulted in no process preemption (and probably
contributed to the signal trap loop locking up the machine that was
recently fixed). Put the check and preempt() call in the AST trap
handler to restore process preemption.
Not directly related to the PR but this bug was discovered while testing.
In azalia_stream_halt, invalidate the intr ptr to prevent a race condition
where azalia_stream_intr can jump off into lala land during stream shutdown.
based on cgsix). Original commit message:
Include wsdisplay.h directly in the header to avoid different sizes
of cgsix_softc depending on proper previous includes by the includer
due to #ifdef NWSDISPLAY. Thanks to kmem poison check and DEBUG kernels.
PR kern/16942 panic with softdep and quotas
PR kern/19565 panic: softdep_write_inodeblock: indirect pointer #1 mismatch
PR kern/26274 softdep panic: allocdirect_merge: ...
PR kern/26374 Long delay before non-root users can write to softdep partitions
PR kern/28621 1.6.x "vp != NULL" panic in ffs_softdep.c:4653 while unmounting a softdep (+quota) filesystem
PR kern/29513 FFS+Softdep panic with unfsck-able file-corruption
PR kern/31544 The ffs softdep code appears to fail to write dirty bits to disk
PR kern/31981 stopping scsi disk can cause panic (softdep)
PR kern/32116 kernel panic in softdep (assertion failure)
PR kern/32532 softdep_trackbufs deadlock
PR kern/37191 softdep: locking against myself
PR kern/40474 Kernel panic after remounting raid root with softdep
Retire softdep, pass 2. As discussed and later formally announced on the
mailing lists.
PR kern/40361 WAPBL locking panic in -current
PR kern/40361 WAPBL locking panic in -current
PR kern/40470 WAPBL corrupts ext2fs
PR kern/40562 busy loop in ffs_sync when unmounting a file system
PR kern/40525 panic: ffs_valloc: dup alloc
- A fix for an issue that can lead to "ffs_valloc: dup" due to dirty cg
buffers being invalidated. Problem discovered and patch by dholland@.
- If the syncer fails to lazily sync a vnode due to lock contention,
retry 1 second later instead of 30 seconds later.
- Flush inode atime updates every ~10 seconds (this makes most sense with
logging). Presently they didn't hit the disk for read-only files or
devices until the file system was unmounted. It would be better to trickle
the updates out but that would require more extensive changes.
- Fix issues with file system corruption, busy looping and other nasty
problems when logging and non-logging file systems are intermixed,
with one being the root file system.
- For logging, do not flush metadata on an inode-at-a-time basis if the sync
has been requested by ioflush. Previously, we could try hundreds of log
sync operations a second due to inode update activity, causing the syncer
to fall behind and metadata updates to be serialized across the entire
file system. Instead, burst out metadata and log flushes at a minimum
interval of every 10 seconds on an active file system (happens more often
if the log becomes full). Note this does not change the operation of
fsync() etc.
- With the flush issue fixed, re-enable concurrent metadata updates in
vfs_wapbl.c.
Also do the missed rename of multiboot_ksyms_init to
multiboot_ksyms_addsyms_elf to compile with MULTIBOOT set.
This caused a minor and a more serious bug in the past:
- dmesg did not contain the information about the loader
- /dev/ksyms did not work when the kernel was booted with a
multiboot bootloader (grub for example)
Ok by jmcneill, joerg.
monstrous if-then-else-if constructs.
2. Display module capacity in GB if it is at least 1GB.
3. Indicate if a memory module is "registered".
4. For DDR3, indicate if a temp-sensor is present.
Inspired by similar changes in OpenBSD's spdmem(4).
backend, perform all calls through a syscall table. This makes it
possible to make system calls to non-local rump kernels.
(requires a bit support code. it's written but quite messy currently)
conditional on FXPF_EXT_TXCB, so, replace all uses with that
- for the pci frontend, reestablish some flags lost the the prior
changes and simplify one of the cases
this fixes PR 40677 and may fix PR 40431.
