the resident page count matches the object size. We know it fully backs
its parent in this case.
Reviewed by: acl, tegge
Sponsored by: Isilon Systems, Inc.
statement. Specifically, a break statement that previously broke out of
the enclosing switch was not changed. Consequently, the enclosing loop
terminated prematurely.
This could result in "vm_page_insert: page already inserted" panics.
Submitted by: tegge
modified bit emulation traps on Alpha while holding locks in the
sysctl handler.
A better solution would be to pass a hint to the Alpha pmap code to
tell mark these pages as modified when they as they are being wired,
but that appears to be more difficult to implement.
Suggested by: jhb
MFC after: 3 days
placeholder similar to KTR_DEV. Explain the use of KTR_DEV and
KTR_SUBSYS in a comment as well.
- Retire KTR_WITNESS and instead have KTR_WITNESS default to off but use
KTR_SUBSYS if it is enabled.
Linux LSI MegaRaid tools can run on FreeBSD until Linux emulation.
Add in the Linux IOCTL shim and create the megadev0 device so
Linux LSI MegaRaid tools can run on FreeBSD until Linux emulation.
Add glue to build the modules but don't tie it into the build
yet until I test it from the CVS repo. via the mirror on an
amd64 machine.
Tie this into the Linux32 emulation on amd64 so the tools can
run on amd64 kernel.
Cleaned up by: ps (amr_linux.c)
ip_forward() would report back a zero MTU in ICMP needfrag messages
because on a IPSEC SP lookup failure no MTU got computed.
Fix this by changing the logic to compute a new MTU in any case if
IPSEC didn't do it.
Change MTU computation logic to use egress interface MTU if available
or the next smaller MTU compared to the current packet size instead
of falling back to a very small fixed MTU.
Fix associated comment.
PR: kern/91412
MFC after: 3 days
ia_hash only if it actually is an AF_INET address. All other places
test for sa_family == AF_INET but this one.
PR: kern/92091
Submitted by: Seth Kingsley <sethk-at-meowfishies.com>
MFC after: 3 days
If net.link.ether.inet.useloopback=1 and we send broadcast packet using our
own source ip address it may be rejected by uRPF rules.
Same bug was fixed for IPv6 in rev. 1.115 by suz.
PR: kern/76971
Approved by: glebius (mentor)
MFC after: 3 days
side effect that legacy ATA controllers at irq14 and irq15 cannot share
interrupts with anything else without major problems.
This fixes the ATAPI DMA problems some systems/devices have seen.
1) unregsiter kqueue filter for EVFILT_LIO.
2) free uma_zones.
3) call setsid directly to enter another session rather than
implementing by itself.
Submitted by: jhb
(1) Fix DMA alignment, based on bytes per sample.
feeder_rate.c:
Handle strayed bytes (mostly caused by #1) better.
This DMA alignment issues are extremely hard to reproduce unless
the user happen to have a 32bit capable soundcards (ATI IXP) and
knowledgeable enough to force it to operate under pure 32bit
operations on both record and play directions.
The success of the cluster allocation is checked through a field in the
mbuf structure. This change is non-functional but properly silences code
inspection tools.
Found by: Coverity Prevent(tm)
Coverity ID: CID807
Sponsored by: TCP/IP Optimization Fundraise 2005
up to date. Principle changes for this reelase is to support 2K Port Login
firmware. This allows us to support the 2322 (and 2422 4Gb) cards which only
come with the 2K Port Login firmware. The 2322 should now work- but we don't
have firmware sets for it in ispfw (as the change to load 2K Port Login f/w
hasn't been made- that f/w is so big it has to be loaded in more than one
chunk).
Other changes are the beginnings of cleaning up some long standing target
mode issues. The next changes here will incorporate a lot of bug fixes
from others.
Finally, some copyright cleanup and attempts to make the parts of the
driver that are FreeBSD specific start conforming more to FreeBSD style.
MFC after: 1 month
lookup() instead of EPERM when a DELETE or RENAME operation is
attempted on "..".
In kern_unlink(), remap EINVAL errors returned from namei() to EPERM
to match existing (and POSIX required) behaviour.
Discussed with: bde
MFC after: 3 days
feeder.h:
feeder.c:
- Implement scoring mechanisme to select best format for conversion.
This is actually part of newer format chaining procedures which
will be commited someday. Confusion during chaining process solved
by this scoring since it will try to reduce list of from/to formats
to a single, best format.
Related PR: kern/91683
channel.c:
- Simplify feeder building process since we have smarter format
chaining.
feeder_fmt.c:
- Add few more sign conversion feeders for 24 and 32 bit format.
feeder_rate.c:
- Force buffer / bytes allignment. Unaligned buffer may cause
panics during recording on pure 32bit sample format if it
involves feeder_rate as part of feeders chain.
Tested on: ATI IXP, force 32bit recording.
MFC after: 5 days
used by utilities to reset moused(8), for example. The syntax is:
!system=kern subsystem=power type=resume
Note that it would be nice to have notification of suspend, but it's more
difficult since there would have to be a method of doing request/ack
to userland and automatically timing out if no response. apm(4) has a
similar mechanism.
MFC after: 2 weeks
An executable contains at most one PT_INTERP program header. Therefore,
the loop that searches for it can terminate after it is found rather than
iterating over the entire set of program headers.
Eliminate an unneeded initialization.
Reviewed by: tegge
the last component of the path name is "..". This keeps VOP_LOOKUP()
from locking vnodes in reverse order.
Tested by: Denis Shaposhnikov <dsh AT vlink DOT ru>
MFC after: 3 days
prototypes, as the majority of new functions added have been in this
style. Changing prototype style now results in gcc noticing that the
implementation of vn_pollrecord() has a 'short' argument instead of
'int' as prototyped in vnode.h, so correct that definition. In practice
this didn't matter as only poll flags in the lower 16 bits are used.
MFC after: 1 week
Vararg functions have a different calling convention than regular
functions on amd64. Casting a varag function to a regular one to
match the function pointer declaration will hide the varargs from
the caller and we will end up with an incorrectly setup stack.
Entirely remove the varargs from these functions and change the
functions to match the declaration of the function pointers.
Remove the now unnecessary casts.
Lots of explanations and help from: peter
Reviewed by: peter
PR: amd64/89261
MFC after: 6 days
o fix contention window
o silently discard received frames that are too short
o simplify lookup of 802.11a channels (we know they exist)
o fix short preamble support
o add short slot support
o fix eifs settings
o many consistency tweaks
share devclass pointers, a mistake I've encouraged in the past) and
move the declaration of the pci_driver kobj class from cardbus.c to
pci_private.h so that other drivers can inherit from pci_driver.
devclass's parent pointer if the two drivers share the same devclass. This
can happen if the drivers use the same new-bus name. For example, we
currently have 3 drivers that use the name "pci": the generic PCI bus
driver, the ACPI PCI bus driver, and the OpenFirmware PCI bus driver. If
the ACPI PCI bus driver was defined as a subclass of the generic PCI bus
driver, then without this check the "pci" devclass would point to itself
as its parent and device_probe_child() would spin forever when it
encountered the first PCI device that did have a matching driver.
Reviewed by: dfr, imp, new-bus@
went away in the generated files? This didn't happen on my amd64
test machine but did when I committed it on my other i386 machine.
I need to figure this out since a regen on the amd64 doesn't fix it
now. For now make the build work again. Matt caught this before
my local mirror caught up.
This fixes reconnect after, for example, tcp idle disconnection.
Previously this would fail if a normal user tried to bind to a privileged
port.
Submitted by: cel@citi.umich.edu
MFC after: 1 week
hacking:
- Remove all spaces at eol.
- Improve style(9) in most frequently edited functions.
- In em_encap() push variables for 82544 workaround in the block
where they are only used.
- In em_get_buf() remove unused variable.
errors from rn_inithead back to the ipfw initialization function.
- Check return value of rn_inithead for failure, if table allocation has
failed for any reason, free up any tables we have created and return ENOMEM
- In ipfw_init check the return value of init_tables and free up any mutexes or
UMA zones which may have been created.
- Assert that the supplied table is not NULL before attempting to dereference.
This fixes panics which were a result of invalid memory accesses due to failed
table allocation. This is an issue mainly because the R_Zalloc function is a
malloc(M_NOWAIT) wrapper, thus making it possible for allocations to fail.
Found by: Coverity Prevent (tm)
Coverity ID: CID79
MFC after: 1 week
but not 'fragment reassemble'), which can cause some fragments to get
inserted into the cache twice, thereby violating an invariant, and panic-
ing the system subsequently.
Reviewed by: mlaier
MFC after: 1 day
o lock the list walk
o malloc a results buffer instead of copying out one result at a time
using an on-stack buffer
o fix definition of ieee80211req_scan_result so size of variable-length
information elements is large enough to hold all possible ie's
(still only return wpa+wme, at some point may return all)
o make rssi+noise data signed; they should've been so all along
o add a bit more padding for future additions while we're here
o define a new ioctl for new api and add compat code for old ioctl
under COMPAT_FREEBSD6 (temporarily enabled local to the file)
Reviewed by: Scott Long
MFC after: 2 weeks
to have a value that's not been used before; this fixes the problem
where the first traversal of the scan list did nothing because the
entries were initialized with the current generation number (a
separate issue)
MFC after: 1 week
This fixes a bug in the previous commit.
Found by: Coverity Prevent(tm)
Coverity ID: CID253
Sponsored by: TCP/IP Optimization Fundraise 2005
MFC after: 3 days
change the mbuf pointer and we don't have any way of passing
it back to the callers. Instead just fail silently without
updating the checksum but leaving the mbuf+chain intact.
A search in our GNATS database did not turn up any match for
the existing warning message when this case is encountered.
Found by: Coverity Prevent(tm)
Coverity ID: CID779
Sponsored by: TCP/IP Optimization Fundraise 2005
MFC after: 3 days
that currently can't be triggered. But better be safe than sorry
later on. Additionally it properly silences Coverity Prevent for
future tests.
Found by: Coverity Prevent(tm)
Coverity ID: CID802
Sponsored by: TCP/IP Optimization Fundraise 2005
MFC after: 3 days
route MTU.
This bug is very difficult to reach and not remotely exploitable.
Found by: Coverity Prevent(tm)
Coverity ID: CID162
Sponsored by: TCP/IP Optimization Fundraise 2005
MFC after: 3 days
may have changed by m_pullup() during fastforward processing.
While this is a bug it is actually never triggered in real world
situations and it is not remotely exploitable.
Found by: Coverity Prevent(tm)
Coverity ID: CID780
Sponsored by: TCP/IP Optimization Fundraise 2005
as input/output interface errors.
- Keep values of rx/tx discards & tx collisions inside struct bge_softc.
So we can keep statistic across ifconfig down/up runs (cause bringing
bge up will reset chip).
Approved by: glebius (mentor)
MFC after: 1 week
equal to NULL several times later. p_ucred "should probably not" be NULL
if the process isn't PRS_NEW anyway. This is strongly reinforced by the fact
that we don't see frequent crashes here. Remove the checks after p_cansee and
add a KASSERT right before it.
Found by: Coverity Prevent (tm)
Also trim one nearby trailing space.
last few days. I tracked it down to the fact that nfs_reclaim()
is setting vp->v_data to NULL _before_ calling vnode_destroy_object().
After silence from the mailing list I checked further and discovered
that ufs_reclaim() is unique among FreeBSD filesystems for calling
vnode_destroy_object() early, long before tossing v_data or much
of anything else, for that matter. The rest, including NFS, appear
to be identical, as if they were just clones of one original routine.
The enclosed patch fixes all file systems in essentially the same
way, by moving the call to vnode_destroy_object() to early in the
routine (before the call to vfs_hash_remove(), if any). I have
only tested NFS, but I've now run for over eighteen hours with the
patch where I wouldn't get past four or five without it.
Submitted by: Frank Mayhar
Requested by: Mohan Srinivasan
MFC After: 1 week
lock_obj objects:
- Add new lock_init() and lock_destroy() functions to setup and teardown
lock_object objects including KTR logging and registering with WITNESS.
- Move all the handling of LO_INITIALIZED out of witness and the various
lock init functions into lock_init() and lock_destroy().
- Remove the constants for static indices into the lock_classes[] array
and change the code outside of subr_lock.c to use LOCK_CLASS to compare
against a known lock class.
- Move the 'show lock' ddb function and lock_classes[] array out of
kern_mutex.c over to subr_lock.c.
