and linux_sendsig functions guarded their debugging output with
ldebug(sigreturn). This has been mistaken for a cut-n-paste bug,
and was replaced by ldebug(rt_sendsig) and ldebug(sendsig) resp.
Since the sendsig functions are not syscalls, this brokei any
build that defines DEBUG.
The fix maps both functions to the unused syscall 0 so that they
can be enabled/disabled independently from sigreturn, but not
independently from each other.
it to the MI area. KSE touched cpu_wait() which had the same change
replicated five ways for each platform. Now it can just do it once.
The only MD parts seemed to be dealing with fpu state cleanup and things
like vm86 cleanup on x86. The rest was identical.
XXX: ia64 and powerpc did not have cpu_throw(), so I've put a functional
stub in place.
Reviewed by: jake, tmm, dillon
correct mode via ancontrol, you can use bpf to sniff raw 802.11 frames.
Who want's to port AirSnort. ;-)
Submitted by: Doug Ambrisko <ambrisko@ambrisko.com> (author)
David Wolfskill <david@catwhisker.org> (port to current)
an array "fs_contigdirs[]" to avoid too many directories getting
created in each cylinder group. The memory required for this and
two other arrays (fs_csp[] and fs_maxcluster[]) is allocated with
a single malloc() call, and divided up afterwards. However, the
'space' pointer is not advanced correctly, so fs_contigdirs and
fs_maxcluster end up pointing to the same address.
Add the missing code to advance the 'space' pointer, and remove
an unnecessary update of the pointer that follows.
This is likely to fix the "ffs_clusteralloc: map mismatch" panics
that have been reported recently.
Submitted by: Luke Mewburn <lukem@wasabisystems.com>
message. Some scsi devices have rather elaberate flags, and it is
hard to know which ones were specified in pccard.conf when debug
information only includes the dmesg.
with the last change to the way the pmap_emulate_reference() works. This
should fix a number of memory corruption problems and also should stop the
mtimes of executables changing all the time.
o Define ELFMAG and SELFMAG as an alternative to test the ELF magic.
ELFMAG is the magic; SELFMAG is the size of the magic. Use with
strncmp() or memcmp().
o Define SHT_NUM as the number of predefined sections.
Note: style(9) deviation for consistency.
me (addition of vn_rdwr_inchunks). The problem Yahoo is solving is that
if you have large process images core dumping, or you have a large number of
forked processes all core dumping at the same time, the original coredump code
would leave the vnode locked throughout. This can cause the directory vnode
to get locked up, which can cause the parent directory vnode to get locked
up, and so on all the way to the root node, locking the entire machine up
for extremely long periods of time.
This patch solves the problem in two ways. First it uses an advisory
non-blocking lock to abort multiple processes trying to core to the same
file. Second (my contribution) it chunks up the writes and uses bwillwrite()
to avoid holding the vnode locked while blocking in the buffer cache.
Submitted by: ps
Reviewed by: dillon
MFC after: 2 weeks
o Introduce private types for use in linux syscalls for two reasons:
1. establish type independence for ease in porting and,
2. provide a visual queue as to which syscalls have proper
prototypes to further cleanup the i386/alpha split.
Linuxulator types are prefixed by 'l_'. void and char have not
been "virtualized".
o Provide dummy functions for all syscalls and remove dummy functions
or implementations of truely obsolete syscalls.
o Sanitize the shm*, sem* and msg* syscalls.
o Make a first attempt to implement the linux_sysctl syscall. At this
time it only returns one MIB (KERN_VERSION), but most importantly,
it tells us when we need to add additional sysctls :-)
o Bump the kenel version up to 2.4.2 (this is not the same as the
KERN_VERSION MIB, BTW).
o Implement new syscalls, of which most are specific to i386. Our
syscall table is now up to date with Linux 2.4.2. Some highlights:
- Implement the 32-bit uid_t and gid_t bases syscalls.
- Implement a couple of 64-bit file size/offset bases syscalls.
o Fix or improve numerous syscalls and prototypes.
o Reduce style(9) violations while I'm here. Especially indentation
inconsistencies within the same file are addressed. Re-indenting
did not obfuscate actual changes to the extend that it could not
be combined.
NOTE: I spend some time testing these changes and found that if there
were regressions, they were not caused by these changes AFAICT.
It was observed that installing a RH 7.1 runtime environment
did make matters worse. Hangs and/or reboots have been observed
with and without these changes, so when it failed to make life
better in cases it doesn't look like it made it worse.
1. establish type independence for ease in porting and,
2. provide a visual queue as to which syscalls have proper
prototypes to further cleanup the i386/alpha split.
Linuxulator types are prefixed by 'l_'. void and char have not
been "virtualized".
o Provide dummy functions for all unimplemented syscalls, except for
the osf1 syscalls. This can only be done if the osfulator
implements at least all syscalls used by the linuxulator. Remove
dummy functions for syscalls that are now truely unimplemented.
o Set the syscall namespace as follows: Mark a syscall as OSF1 if
the Linux kernel has prefixed the syscall with 'osf_' and has
provided special implementations for it. Otherwise mark the
syscall as LINUX by default. Some of the LINUX syscalls remain
marked as BSD or POSIX.
o Rename syscalls so they match the names used in the Linux kernel.
Also, provide more accurate prototypes. This generally improves
cross-referencing and reduces head-scratching.
o Fix the (g|s)etresuid syscalls. They mapped to (g|s)etresgid.
o Sanitize the the shm*, sem* and msg* syscalls. Their prototypes
were dictated by the way these syscalls were used in the i386
code. That has been fixed. NOTE: linux_semctl now passes it's
'arg' parameter by value and not by reference.
o Fix prototype of linux_utime. It takes a struct timeval, not a
struct utimbuf.
o Fix the linux_sysfs syscall. It's index is not 255, but 254.
o Implement the following syscalls:
linux_sysctl
o Add the following new syscalls:
(g|s)etresgid
linux_pivot_root (dummy)
linux_mincore (dummy)
linux_pciconfig_iobase (dummy)
linux_getdents64
1. establish type independence for ease in porting and,
2. provide a visual queue as to which syscalls have proper
prototypes to further cleanup the i386/alpha split.
Linuxulator types are prefixed by 'l_'. void and char have not
been "virtualized".
o Remove dummy functions for syscalls that are now truely
unimplemented.
o Rename syscalls so they match the names used in the Linux kernel.
Also, provide more accurate prototypes. This generally improves
cross-referencing and reduces head-scratching.
o Provide seperate implementations for the 16-bit uid_t and gid_t
based syscalls as Linux used to have. The new 32-bit uid_t and
gid_t based syscalls now map to their FreeBSD equivalents.
o Fix the linux_ipc syscall so that it doesn't force the shm*, sem*
and msg* syscalls to have the same syscall. The prototypes for
these syscalls now match the those used on Alpha. While here,
add the same kludge for MSGRCV as is present in the Linux kernel.
o Implement the following syscalls:
linux_stat64, linux_lstat64 and linux_fstat64
linux_sysctl
o Added syscalls numbered 198 - 221. This include:
- the 32-bit uid_t and gid_t bases syscalls
- 64-bit file offset/size based syscalls
allow an in-kernel webserver (or similar) to accept
and handle incoming connections using netgraph without ever leaving the
kernel. (allows incoming tunnel requests to be
handled totally within the kernel for example)
Needs work, but shouldn't break existing functionality.
Submitted by: John Polstra <jdp@polstra.com>
MFC after: 2 weeks
Avoid fully initialising the ACPI namespace if we are attempting to avoid
parts of it. This is a workaround for some systems that still crash
the interpreter.
Implement the ISA_IVAR_LOGICALID for ISA compatibility. Implement stubs
for other PnP ID-related ivars.
of the adapter object will always result in a change event.
This fixes the problem where a laptop booted without an AC adapter ran
at 100% CPU speed by default.
Submitted by: "Christopher N . Harrell" <cnh@netvmg.com>
Cirrus Logic PD6834
O2micro OZ6836
O2micro OZ6912/6972
O2micro OZ6922
O2micro OZ6933
TI1260 Note: These two aren't on TI's site, but are in
TI1260B http://www.yourvote.com/pci/vendors.txt
Plus comments for other chips found in Windows INF files, and also
referenced in various spots on the net:
* Intel 82092AA 0x12218086 16bit
* smc/Databook DB87144 0x310610b3
* SMC/databook smc34c90 0xb10610b3
* Omega/Trident 82c094 0x00940123?
* Omega/Trident 82c194 0x01941023
* Omega/Trident 82c722 0x07221023?
* Opti 82c814 0xc8141045
* Opti 82c824 0xc8241045
* NEC uPD66369 0x003e1033
more cleanly and consistently in all APCI, PnP BIOS, and "hint"
cases.
NOTE: this doesn't necessarily solve the problem that the PS/2
mouse is not detected after the recent ACPI update.
When either bit 3 or 4 is set, we need to *SET* bit 5, not clear it in
the card control register. This makes TI PCI-1030, 1130 and 1131 not
work anymore without this fix.
MFC: soon
the following bugs.
- When constructing a resource configuration, respect the order
in which resource descriptors are read, in order to establish
the correct mapping between the descriptors and configuration
registers.
"Plug and Play ISA Specification, Version 1.0a", Sec 4.6.1, May 5,
1994. "Clarifications to the Plug and Play ISA Specification,
Version 1.0a", Sec 6.2.1, Dec. 10, 1994.
- Do not ignore null (empty) descriptors; they are valid descriptors
acting as filler.
"Clarifications to the Plug and Play ISA Specification, Version 1.0a",
Sec 6.2.1.
- Correctly set up logical device configuration registers for null
resources.
"Clarifications to the Plug and Play ISA Specification, Version 1.0a"
- Handle null resources properly in the resource allocator for the
ISA bus.
each other. This will allow multiple __RCSID() entries in the same file
and even __RCSID() in headers. **HOWEVER**, the usefulness of this in
headers is somewhat marginal in non-ELF since they would go into the
data section where they cannot be easily compressed or stripped.
It (id's in headers) is also not useful in the non-GCC case since it is
hard to generate unique variable names. I have an idea on that though.
Now for mcs: http://mirrors.ccs.neu.edu/cgi-bin/unixhelp/man-cgi?mcs+1
SIM (as is true for the 1280 and the 12160), then I have to have separate
flags && status for *both* busses. *Whap*.
Implement condition variables for coordination with some target mode
events. It's nice to use these and not panic in obscure little places
in the kernel like 'propagate_priority' just because we went to sleep
holding a mutex, or some other absurd thing.
Remove some bogus ISP_UNLOCK calls. *Whap*.
No longer require that somebody do a lun enable on the wildcard device
to enable target mode. They are, in fact, orthogonal. A wildcard open
is a statement that somebody upstream is willing to accept commands which
are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this
won't matter for a damn because we'll never see ATIOs for luns we haven't
enabled (are listening for, if you will). But for SCCLUN fibre channel
SCSI, we get all kinds of ATIOs. We can either reflect them back here
with minimal info (which is isp_target.c:isp_endcmd() is for), or the
wildcard device (nominally targbh) can handle them.
Do further checking against firmware attributes to see whether we can,
in fact, support target mode in Fibre Channel. For now, require SCCLUN
f/w to supoprt FC target mode.
This is an awful lot of change, but target mode *still* isn't quite right.
MFC after: 4 weeks
applies to. Do more bus # foo things.
Acknowledge Immediate Notifies right away prior to throwing events upstream
(where they're currently being ignored, *groan*)
Capture ASYNC_LIP_F8 as with ASYNC_LIP_OCCURRED. Don't percolate them
upstream as if they were BUS RESETS- they're not.
and cv_wait for mailbox commands to complete if we start them from
here.
Fix residuals for target mode such that we only check the residual and
set it in the CTIO if this is the last CTIO (when we're sending status).
MFC after: 4 weeks
SIM (as is true for the 1280 and the 12160), then I have to have separate
flags && status for *both* busses. *Whap*.
Implement condition variables for coordination with some target mode
events. It's nice to use these and not panic in obscure little places
in the kernel like 'propagate_priority' just because we went to sleep
holding a mutex, or some other absurd thing.
MFC after: 4 weeks
has been forcibly unmounted. If the filesystem root vnode is reached
and it has no associated mountpoint (vp->v_mount == NULL), __getcwd
would return without freeing 'buf'. Add the missing free() call.
PR: kern/30306
Submitted by: Mike Potanin <potanin@mccme.ru>
MFC after: 1 week
help with the hanging problem on reboot. Note: we need to do the
other things as well. Also, turn off the bits in the stat change
interrupt mask and the cardbus interrupt mask as well in an attempt to
shut off all interrupt sources.
laptops with this chip should test this and report back as I don't have
access to this hardware myself. People with -stable systems should try
the patch at:
http://www.freebsd.org/~wpaul/conexant.patch.gz
Submitted by: Phil Kernick <Phil@Kernick.org>
with system statistics monitoring tools (such as systat, vmstat...)
because of stopping RTC interrupts generation.
Restore all the timers (RTC and i8254) atomically.
Reviewed by: bde
MFC after: 1 week
# Note: The ToPIC 100 and the ToPIC 97 datasheets are in disagreement
# as to if this bit is supposed to be set or cleared to enable INTA routing
# so I made my best guess.
Also, comments about the various chipsets, including some grumpy ones
about how vague the O2micro datasheets are.
function and csc interrupt routing path (eg, ISA or PCI) so that we
can more easily switch between the two.
When we don't have a card ISR, put the function interrupt into ISA
mode. This effectively masks the interrupt since it happens once, and
not again until we have an ISR. This should help hangs, and might
help people that unwisely update the kernel w/o updating pccardd.
This is done at mapirq time.
Force CL-PD6729/30 to use ISA interrupt routing and maybe even detect
the number of pccard slots properly (this is still WIP). We aren't
going to support PCI interrupts for this release. A future release
should support them, however. Shibata-san's 3.3V fixes are not
included.
Add a hack which should, in i386, rewrite IRQ 0 cardbus bridges to be
IRQ 255, which should cause interrupts to be routed. This is mostly
untested since my one tester disappeared after reporting nothing
changed.
Implement, but do not use, a power method called cardbus. It looked
like a great way to get around the 3.3V problem, but it seems that you
can only use it to power cardbus cards (I get no CIS when I enable it,
so maybe we're programming things bogusly).
GC the intr and argp stuff from the slot database.
Improve the ToPIC support with the power hacks that Nakagawa-san
published in FreeBSD Press and that Hiroyuki Aizu-san ported to
-stable. The ToPIC hacks were for 3.3V support in ToPIC 100, but it
looks like the '97 also has identical registers, so use them too.
Add some #defines for the cardbus power stuff.
Finally implement making CSC on the Ricoh chips ISA or PCI. This will
allow polling mode to work on vaios, I think.
Add some minor debugging. This should likely be cleaned up or put
behing a bootverbose.
Some of this work, and earlier work, was influanced by Chiharu
Shibata-san's power handing patches posted to bsd-nomads:15866.
MFC: Soon, if possible.
with user windows in kernel mode. We split the windows using %otherwin,
but instead of spilling user window directly to the pcb, we attempt to
spill to user space. If this fails because a stack page is not resident
(or the stack is smashed), the fault handler at tl 2 will detect the
situation and resume at tl 1 again where recovery code can spill to the
pcb. Any windows that have been saved to the pcb will be copied out to
the user stack on return from kernel mode.
Add a first stab at 32 bit window handling. This uses much of the same
recovery code as above because the alignment of the stack pointer is used
to detect 32 bit code. Attempting to spill a 32 bit window to a 64 bit
stack, or vice versa, will cause an alignment fault. The recovery code
then changes the window state to vector to a 32 bit spill/fill handler
and retries the faulting instruction.
Add ktr traces in useful places during trap processing.
Adjust comments to reflect new code and add many more.
Remove the modified tte bit and add a softwrite bit. Mappings are only
writeable if they have been written to, thus in general modify just
duplicates the write bit. The softwrite bit makes it easier to distinguish
mappings which should be writeable but are not yet modified.
Move the exec bit down one, it was being sign extended when used as an
immediate operand.
Use the lock bit to mean tsb page and remove the tsb bit. These are the
only form of locked (tsb) entries we support and we need to conserve bits
where possible.
Implement pmap_copy_page and pmap_is_modified and friends.
Detect mappings that are being being upgraded from read-only to read-write
due to copy-on-write and update the write bit appropriately.
Make trap_mmu_fault do the right thing for protection faults, which is
necessary to implement copy on write correctly. Also handle a bunch
more userland trap types and add ktr traces.
