Ed Schouten [Thu, 26 Feb 2009 21:43:15 +0000 (21:43 +0000)]
Rename all symbols in libmp(3) to mp_*, just like Solaris.
The function pow() in libmp(3) clashes with pow(3) in libm. We could
rename this single function, but we can just take the same approach as
the Solaris folks did, which is to prefix all function names with mp_.
libmp(3) isn't really popular nowadays. I suspect not a single
application in ports depends on it. There's still a chance, so I've
increased the SHLIB_MAJOR and __FreeBSD_version.
Alexander Motin [Thu, 26 Feb 2009 21:33:48 +0000 (21:33 +0000)]
Remove direct ata_completed() call options from ata_finish(), except for the
kernel dumping case.
ata_completed() may initiate ata_reinit() on error, that may lead to drives
attach or detach. Attach and detach are sending requests to drives and sleep
waiting for results. But ata_finish() can be called directly from
interrupt handler where sleeping is prohibited, so we must break this chain
somewhere. This place seems to fit best.
Ed Schouten [Thu, 26 Feb 2009 20:32:11 +0000 (20:32 +0000)]
Use ANSI function declarations in librpcsvc.
When compiling librpcsvc with LLVM, we get a compiler error, because
hexval() uses an ANSI prototype, but a K&R declaration. I could have
just changed hexval(), but I'd rather keep this consistent. It's not
that much code.
Alexander Motin [Thu, 26 Feb 2009 20:00:14 +0000 (20:00 +0000)]
Add MSI blacklisting support.
Disable MSI for nVidia MCP51 controller. Enabling MSI there leads to
unexpected errors and timeouts, that should not happen even if interrupts
are not working completely.
Andriy Gapon [Thu, 26 Feb 2009 18:58:41 +0000 (18:58 +0000)]
udf_readatoffset: read through directory vnode, do not read > MAXBSIZE
Currently bread()-ing through device vnode with
(1) VMIO enabled,
(2) bo_bsize != DEV_BSIZE
(3) more than 1 block
results in data being incorrectly cached.
So instead a more common approach of using a vnode belonging to fs is now
employed.
Also, prevent attempt to bread more than MAXBSIZE bytes because of
adjustments made to account for offset that doesn't start on block
boundary.
Add expanded comments to explain the calculations.
Also drop unused inline function while here.
Attilio Rao [Thu, 26 Feb 2009 18:01:07 +0000 (18:01 +0000)]
[1] When showing threads, the thread name just appears if the comm
label is choosen as last printout (ucomm suffers of this such bug
too). That bug is caused by the fact that the fixed size of
printout doesn't leave enough space for them to be printed out.
Implement ucomm and comm commands with a dynamic size lenght for
buffers.
[2] On AMD64 architecture pointers don't have enough chars space to
be shown (8 chars while they need 16). Fix them by providing
a variadic space so that it fits well on both 64 and 32 bits
architectures.
[3] Check a return value of malloc() that wasn't checked before.
Roman Divacky [Thu, 26 Feb 2009 17:46:54 +0000 (17:46 +0000)]
Add a missing parameter to ruserpass(). According to C99 6.9.1p7
K&R function is not a prototype but this is a bad style. GCC accepts
this other compilers warn or reject this.
Ed Schouten [Thu, 26 Feb 2009 16:32:48 +0000 (16:32 +0000)]
Remove unneeded pointer `ndp'.
Inside do_execve(), we have a pointer `ndp', which always points to
`&nd'. I can imagine a primitive (non-optimizing) compiler to really
reserve space for such a pointer, so just remove the variable and use
`&nd' directly.
Ed Schouten [Thu, 26 Feb 2009 15:51:54 +0000 (15:51 +0000)]
Remove even more unneeded variable assignments.
kern_time.c:
- Unused variable `p'.
kern_thr.c:
- Variable `error' is always caught immediately, so no reason to
initialize it. There is no way that error != 0 at the end of
create_thread().
kern_sig.c:
- Unused variable `code'.
kern_synch.c:
- `rval' is always assigned in all different cases.
kern_rwlock.c:
- `v' is always overwritten with RW_UNLOCKED further on.
kern_malloc.c:
- `size' is always initialized with the proper value before being used.
kern_exit.c:
- `error' is always caught and returned immediately. abort2() never
returns a non-zero value.
kern_exec.c:
- `len' is always assigned inside the if-statement right below it.
tty_info.c:
- `td' is always overwritten by FOREACH_THREAD_IN_PROC().
John Baldwin [Thu, 26 Feb 2009 14:32:14 +0000 (14:32 +0000)]
Don't throw away upper 32-bits of the HT MSI address window. In practice
this is harmless since the address window for MSI on x86 is in the lower
4 GB.
Andriy Gapon [Thu, 26 Feb 2009 12:33:02 +0000 (12:33 +0000)]
udf_strategy: tiny optimization of logic, calculations; extra diagnostics
Use bit-shift instead of division/multiplication.
Act on error as soon as it is detected.
Report attempt to read data embedded in file entry via regular way.
While there, fix lblktosize macro and make use of it.
Robert Watson [Thu, 26 Feb 2009 10:56:13 +0000 (10:56 +0000)]
Add static tracing for privilege checking:
priv:kernel:priv_check:priv_ok fires for granted privileges
priv:kernel:priv_check:priv_errr fires for denied privileges
The first argument is the requested privilege number. The naming
convention is a little different from the OpenSolaris equivilent
because we can't have '-' in probefunc names, and our privilege
namespace is different.
Jung-uk Kim [Wed, 25 Feb 2009 20:26:48 +0000 (20:26 +0000)]
Enable support for PAT_WRITE_PROTECTED and PAT_UNCACHED cache modes
unconditionally on amd64. On i386, we assume PAT is usable if the CPU
vendor is not Intel or CPU model is newer than Pentium IV.
Alan Cox [Wed, 25 Feb 2009 07:52:53 +0000 (07:52 +0000)]
Prior to r188331 a map entry's last read offset was only updated by a hard
fault. In r188331 this update was relocated because of synchronization
changes to a place where it would occur on both hard and soft faults. This
change again restricts the update to hard faults.
Maxim Sobolev [Wed, 25 Feb 2009 01:49:01 +0000 (01:49 +0000)]
Make machdep.hyperthreading_enabled tunable working with the SCHED_ULE.
Unlike with SCHED_BSD, however, it can only be set to 0 at boot time,
it's not possible to change it at runtime.
Pyun YongHyeon [Wed, 25 Feb 2009 01:12:56 +0000 (01:12 +0000)]
Update to latest 3Com firmware image. The latest fimware is
required to make 3CR990 familiy controllers run on NV flash
firmware version 03.001.008.
The latest firmware added HMAC digest information so teach txp(4)
to pass them to sleep image before downloading is started.
While I'm here restore previous IMR/IER register if firmware
downloading have failed.
John Baldwin [Tue, 24 Feb 2009 23:11:15 +0000 (23:11 +0000)]
Fix some more issues with the real mode BTX.
The old BTX passed the general purpose registers from the 32-bit client to
the routines called via virtual 86 mode. The new BTX did the same thing.
However, it turns out that some instructions behave differently in virtual 86
mode and real mode (even though this is under-documented). For example, the
LEAVE instruction will cause an exception in real mode if any of the upper
16-bits of %ebp are non-zero after it executes. In virtual 8086 mode the
upper 16-bits are simply ignored. This could cause faults in hardware
interrupt handlers that inherited an %ebp larger than 0xffff from the 32-bit
client (loader, boot2, etc.) while running in real mode.
To fix, when executing hardware interrupt handlers provide an explicit clean
state where all the general purpose and segment registers are zero upon
entry to the interrupt handler. While here, I attempted to simplify the
control flow in the 'intusr' code that sets up the various stack frames
and exits protected mode to invoke the requested routine via real mode.
A huge thanks to Tor Egge (tegge@) for debugging this issue.
Revert the addition of the freelist argument for the vm_map_delete()
function, done in r188334. Instead, collect the entries that shall be
freed, in the deferred_freelist member of the map. Automatically purge
the deferred freelist when map is unlocked.
John Baldwin [Tue, 24 Feb 2009 16:01:56 +0000 (16:01 +0000)]
Bring back the code to prime the ACCESS cache when fetching attributes for
an NFS file. Now the priming is conditional on a new
vfs.nfs.prime_access_cache sysctl. For now I've left the default setting
to disabling the priming.
Robert Watson [Tue, 24 Feb 2009 11:17:50 +0000 (11:17 +0000)]
In tcp_usr_shutdown() and tcp_usr_send(), I missed converting NULL
checks for the tcpcb, previously used to detect complete disconnection,
with INP_DROPPED checks. Correct that, preventing shutdown() from
improperly generating a TCP segment with destination IP and port of
0.0.0.0:0.
PR: kern/132050
Reported by: david gueluy <david.gueluy at netasq.com>
MFC after: 3 weeks
Andrew Thompson [Tue, 24 Feb 2009 03:41:52 +0000 (03:41 +0000)]
MFp4 //depot/projects/usb@157958
- We don't need to exit the Giant mutex when sleeping. This is done
automatically. Replace Giant by NULL mutex for all control requests in the
enumeration path.
- Optimise away duplicate alternate interface selection requests in USB Host
mode.
Andrew Thompson [Tue, 24 Feb 2009 03:38:24 +0000 (03:38 +0000)]
MFp4 //depot/projects/usb@157847
Improvements to "usb2_transfer_setup()" and "usb2_transfer_unsetup()". Set
"ppxfer[n]" when the transfer setup is complete to prevent races. Remove
redundant NULL-checks from "usb2_transfer_unsetup()".
Andrew Thompson [Tue, 24 Feb 2009 03:34:05 +0000 (03:34 +0000)]
MFp4 //depot/projects/usb; 157814, 157863, 157868
- The software computed HID size is not always correct, because the algoritm
does not handle unsorted HID descriptors.
- Change the way we obtain the report ID.
- Use the X/Y/Z+button locations instead for report ID source for ums.
- Add more range checks.
- Remove Microsoft Mouse quirks. If the positions are moduloed the report
length multiplied by 8, the values seem correct.
- Some minor style changes.
Sam Leffler [Tue, 24 Feb 2009 01:07:06 +0000 (01:07 +0000)]
Add PCIE power control api:
o add ah_configPCIE and ah_disablePCIE for drivers to configure PCIE
power save operation (modeled after ath9k, may need changes)
o add private state flag to indicate if device is PCIE (replaces private
hack in 5212 code)
o add serdes programming ini bits for 5416 and later parts and setup
for each part (5416 and 9160 logic hand-crafted from existing routines);
5212 remains open-coded but is now hooked in via ah_configPCIE
o add PCIE workaround gunk
o add ar5416AttachPCIE for iodomatic code used by 5416 and later parts
Sam Leffler [Tue, 24 Feb 2009 00:33:08 +0000 (00:33 +0000)]
Fill in gpio support for 5416 and later parts:
o add output mux support
o gpio pin count is chip-dependent
o 9280 and 9285 do input handling different
o hookup gpio interrupts
o no need to save/restore soft led state around reset
Robert Watson [Mon, 23 Feb 2009 23:00:12 +0000 (23:00 +0000)]
Add a debugging sysctl, debug.vm_lowmem, that when assigned a value of
1 will trigger a pass through the VM's low-memory handlers, such as
protocol and UMA drain routines. This makes it easier to exercise
these otherwise rarely-invoked code paths.
Robert Watson [Mon, 23 Feb 2009 22:57:55 +0000 (22:57 +0000)]
In in_rtqkill(), assert the radix head lock, and pass RTF_RNH_LOCKED
to in_rtrequest(); the radix head lock is already acquired before
rnh_walktree is called in in_rtqtimo_one(). This avoids a recursive
acquisition that is no longer permitted in 8.x due to use of an rwlock
for the radix head lock.
Reported by: dikshie <dikshie at gmail.com>
MFC after: 3 days
Right now, when trying to unmount a device that's already gone,
msdosfs_unmount() and ffs_unmount() exit early after getting ENXIO.
However, dounmount() treats ENXIO as a success and proceeds with
unmounting. In effect, the filesystem gets unmounted without closing
GEOM provider etc.