address is not supplied, then jail IP is choosed and in_pcbbind() is called.
Since udp_output() does not save local addr after call to in_pcbconnect_setup(),
in_pcbbind() is called for each packet, and this is incorrect.
So, we shall treat jailed sockets specially in udp_output(), we will save
their local address.
This fixes a long standing bug with broken sendto() system call in jails.
PR: kern/26506
Reviewed by: rwatson
MFC after: 2 weeks
loopback interface. Nobody have explained me sense of this check.
It breaks connect() system call to a destination address which is
loopback routed (e.g. blackholed).
Reviewed by: silence on net@
MFC after: 2 weeks
modes, systems may take longer. If the status values don't match, try
matching just the lowest 8 bits if no bits above 8 are set in the desired
value. The IBM R32 has other bits set in the status register that are
irrelevant to the expected value.
the switch. Other interim tests (i.e., for minimum runtime) could
invalidate the start time. This fixes transitions to cooler states in that
now they go to the next active state (_AC0 -> _AC1) instead of going
straight to off (_AC0 -> off).
Submitted by: Alexandre "Sunny" Kovalenko (Alex.Kovalenko / verizon.net)
locks held, specify the ACPI_ISR flag to keep it from acquiring any more
mutexes (which could potentially sleep.) This should fix "could sleep"
warning messages on the following path:
msleep()
AcpiOsWaitSemaphore()
AcpiUtAcquireMutex()
AcpiDisableGpe()
EcGpeHandler()
AcpiEvGpeDispatch()
AcpiEvGpeDetect()
AcpiEvGpeDetect()
AcpiEvSciXruptHandler()
a socket from a regular socket to a listening socket able to accept new
connections. As part of this state transition, solisten() calls into the
protocol to update protocol-layer state. There were several bugs in this
implementation that could result in a race wherein a TCP SYN received
in the interval between the protocol state transition and the shortly
following socket layer transition would result in a panic in the TCP code,
as the socket would be in the TCPS_LISTEN state, but the socket would not
have the SO_ACCEPTCONN flag set.
This change does the following:
- Pushes the socket state transition from the socket layer solisten() to
to socket "library" routines called from the protocol. This permits
the socket routines to be called while holding the protocol mutexes,
preventing a race exposing the incomplete socket state transition to TCP
after the TCP state transition has completed. The check for a socket
layer state transition is performed by solisten_proto_check(), and the
actual transition is performed by solisten_proto().
- Holds the socket lock for the duration of the socket state test and set,
and over the protocol layer state transition, which is now possible as
the socket lock is acquired by the protocol layer, rather than vice
versa. This prevents additional state related races in the socket
layer.
This permits the dual transition of socket layer and protocol layer state
to occur while holding locks for both layers, making the two changes
atomic with respect to one another. Similar changes are likely require
elsewhere in the socket/protocol code.
Reported by: Peter Holm <peter@holm.cc>
Review and fixes from: emax, Antoine Brodin <antoine.brodin@laposte.net>
Philosophical head nod: gnn
possible that the same packet would show up multiple times. This poses some
constraints on the TBD locking for snc(4) (see comment).
Obtained from: DragonFlyBSD
Submitted by: Joerg Sonnenberger
Reviewed by: rwatson
was a bad idea, but since it is done like this in the vendor source we keep
it around for older versions. As a safe guard against future misuse we don't
even define CALLOUT_INITIALIZER anymore.
This fixes ALTQ after callout_init_mtx() and takes altq_var.h off the vendor
branch.
Submitted by: Divacky Roman <xdivac02NOstud.fit.vutbrSPAMcz> (w/ changes)
on the previous generation of Pentium-M processors (Banias). Support for
Dothan and later processors involves working with acpi_perf(4) to extract
information about supported states. This driver should work on MP systems
including HTT. It is experimental and may have a few bugs but has been
tested to not crash at least.
Thanks to Colin Percival for his initial work on this driver.
only call the protocol's pru_rcvd() if the protocol has the flag
PR_WANTRCVD set. This brings that instance of pru_rcvd() into line with
the rest, which do check the flag.
MFC after: 3 days
very slow process, especially for large file systems that is just
recovered from a crash.
Since the summary is already re-sync'ed every 30 second, we will
not lag behind too much after a crash. With this consideration
in mind, it is more reasonable to transfer the responsibility to
background fsck, to reduce the delay after a crash.
Add a new sysctl variable, vfs.ffs.compute_summary_at_mount, to
control this behavior. When set to nonzero, we will get the
"old" behavior, that the summary is computed immediately at mount
time.
Add five new sysctl variables to adjust ndir, nbfree, nifree,
nffree and numclusters respectively. Teach fsck_ffs about these
API, however, intentionally not to check the existence, since
kernels without these sysctls must have recomputed the summary
and hence no adjustments are necessary.
This change has eliminated the usual tens of minutes of delay of
mounting large dirty volumes.
Reviewed by: mckusick
MFC After: 1 week
of the global UNIX domain socket mutex: no protection is needed that
early in the setup of the UNIX domain socket and socket structures.
MFC after: 3 days
