History log of /freebsd/sys/kern/imgact_aout.c (Results 101 – 125 of 277)
Revision (<<< Hide revision tags) (Show revision tags >>>) Date Author Comments
# 06ae1e91 08-Sep-2001 Matthew Dillon <dillon@FreeBSD.org>

This brings in a Yahoo coredump patch from Paul, with additional mods by
me (addition of vn_rdwr_inchunks). The problem Yahoo is solving is that
if you have large process images core dumping, or you

This brings in a Yahoo coredump patch from Paul, with additional mods by
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

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# 268bdb43 25-Aug-2001 Peter Wemm <peter@FreeBSD.org>

Optionize UPAGES for the i386. As part of this I split some of the low
level implementation stuff out of machine/globaldata.h to avoid exposing
UPAGES to lots more places. The end result is that we

Optionize UPAGES for the i386. As part of this I split some of the low
level implementation stuff out of machine/globaldata.h to avoid exposing
UPAGES to lots more places. The end result is that we can double
the kernel stack size with 'options UPAGES=4' etc.

This is mainly being done for the benefit of a MFC to RELENG_4 at some
point. -current doesn't really need this so much since each interrupt
runs on its own kstack.

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# 0cddd8f0 04-Jul-2001 Matthew Dillon <dillon@FreeBSD.org>

With Alfred's permission, remove vm_mtx in favor of a fine-grained approach
(this commit is just the first stage). Also add various GIANT_ macros to
formalize the removal of Giant, making it easy to

With Alfred's permission, remove vm_mtx in favor of a fine-grained approach
(this commit is just the first stage). Also add various GIANT_ macros to
formalize the removal of Giant, making it easy to test in a more piecemeal
fashion. These macros will allow us to test fine-grained locks to a degree
before removing Giant, and also after, and to remove Giant in a piecemeal
fashion via sysctl's on those subsystems which the authors believe can
operate without Giant.

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# 23955314 19-May-2001 Alfred Perlstein <alfred@FreeBSD.org>

Introduce a global lock for the vm subsystem (vm_mtx).

vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems ca

Introduce a global lock for the vm subsystem (vm_mtx).

vm_mtx does not recurse and is required for most low level
vm operations.

faults can not be taken without holding Giant.

Memory subsystems can now call the base page allocators safely.

Almost all atomic ops were removed as they are covered under the
vm mutex.

Alpha and ia64 now need to catch up to i386's trap handlers.

FFS and NFS have been tested, other filesystems will need minor
changes (grabbing the vm lock when twiddling page properties).

Reviewed (partially) by: jake, jhb

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# fb919e4d 01-May-2001 Mark Murray <markm@FreeBSD.org>

Undo part of the tangle of having sys/lock.h and sys/mutex.h included in
other "system" header files.

Also help the deprecation of lockmgr.h by making it a sub-include of
sys/lock.h and removing sys

Undo part of the tangle of having sys/lock.h and sys/mutex.h included in
other "system" header files.

Also help the deprecation of lockmgr.h by making it a sub-include of
sys/lock.h and removing sys/lockmgr.h form kernel .c files.

Sort sys/*.h includes where possible in affected files.

OK'ed by: bde (with reservations)

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Revision tags: release/4.3.0_cvs, release/4.3.0
# ba88dfc7 27-Jan-2001 John Baldwin <jhb@FreeBSD.org>

Back out proc locking to protect p_ucred for obtaining additional
references along with the actual obtaining of additional references.


# 611d9407 24-Jan-2001 John Baldwin <jhb@FreeBSD.org>

Proc locking.


# 1f7d2501 12-Dec-2000 Kirk McKusick <mckusick@FreeBSD.org>

Change the proc information returned from the kernel so that it
no longer contains kernel specific data structures, but rather
only scalar values and structures that are already part of the
kernel/us

Change the proc information returned from the kernel so that it
no longer contains kernel specific data structures, but rather
only scalar values and structures that are already part of the
kernel/user interface, specifically rusage and rtprio. It no
longer contains proc, session, pcred, ucred, procsig, vmspace,
pstats, mtx, sigiolst, klist, callout, pasleep, or mdproc. If
any of these changed in size, ps, w, fstat, gcore, systat, and
top would all stop working. The new structure has over 200 bytes
of unassigned space for future values to be added, yet is nearly
100 bytes smaller per entry than the structure that it replaced.

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Revision tags: release/4.2.0
# 806d7daa 09-Nov-2000 Marcel Moolenaar <marcel@FreeBSD.org>

Make MINSIGSTKSZ machine dependent, and have the sigaltstack
syscall compare against a variable sv_minsigstksz in struct
sysentvec as to properly take the size of the machine- and
ABI dependent struc

Make MINSIGSTKSZ machine dependent, and have the sigaltstack
syscall compare against a variable sv_minsigstksz in struct
sysentvec as to properly take the size of the machine- and
ABI dependent struct sigframe into account.

The SVR4 and iBCS2 modules continue to have a minsigstksz of
8192 to preserve behavior. The real values (if different) are
not known at this time. Other ABI modules use the real
values.

The native MINSIGSTKSZ is now defined as follows:

Arch MINSIGSTKSZ
---- -----------
alpha 4096
i386 2048
ia64 12288

Reviewed by: mjacob
Suggested by: bde

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Revision tags: release/4.1.1_cvs
# 9ff5ce6b 12-Sep-2000 Boris Popov <bp@FreeBSD.org>

Add three new VOPs: VOP_CREATEVOBJECT, VOP_DESTROYVOBJECT and VOP_GETVOBJECT.
They will be used by nullfs and other stacked filesystems to support full
cache coherency.

Reviewed in general by: mckus

Add three new VOPs: VOP_CREATEVOBJECT, VOP_DESTROYVOBJECT and VOP_GETVOBJECT.
They will be used by nullfs and other stacked filesystems to support full
cache coherency.

Reviewed in general by: mckusick, dillon

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# 21ac8e0b 10-Sep-2000 Doug Rabson <dfr@FreeBSD.org>

Move the include of <sys/systm.h> so that KTR gets a declaration for
snprintf().


Revision tags: release/4.1.0, release/3.5.0_cvs
# 3389ae93 19-Apr-2000 Poul-Henning Kamp <phk@FreeBSD.org>

Remove ~25 unneeded #include <sys/conf.h>
Remove ~60 unneeded #include <sys/malloc.h>


Revision tags: release/4.0.0_cvs, release/3.4.0_cvs
# da654d90 21-Nov-1999 Poul-Henning Kamp <phk@FreeBSD.org>

s/p_cred->pc_ucred/p_ucred/g


# 923502ff 29-Oct-1999 Poul-Henning Kamp <phk@FreeBSD.org>

useracc() the prequel:

Merge the contents (less some trivial bordering the silly comments)
of <vm/vm_prot.h> and <vm/vm_inherit.h> into <vm/vm.h>. This puts
the #defines for the vm_inherit_t and vm

useracc() the prequel:

Merge the contents (less some trivial bordering the silly comments)
of <vm/vm_prot.h> and <vm/vm_inherit.h> into <vm/vm.h>. This puts
the #defines for the vm_inherit_t and vm_prot_t types next to their
typedefs.

This paves the road for the commit to follow shortly: change
useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE}
as argument.

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# d1f088da 11-Oct-1999 Peter Wemm <peter@FreeBSD.org>

Trim unused options (or #ifdef for undoc options).

Submitted by: phk


Revision tags: release/3.3.0_cvs
# b9e91a85 04-Sep-1999 Bruce Evans <bde@FreeBSD.org>

Fixed style regressions in previous commit.


# fca666a1 01-Sep-1999 Julian Elischer <julian@FreeBSD.org>

General cleanup of core-dumping code.

Submitted by: Sean Fagan,


# c3aac50f 28-Aug-1999 Peter Wemm <peter@FreeBSD.org>

$Id$ -> $FreeBSD$


# d44e4156 26-Aug-1999 Dima Ruban <dima@FreeBSD.org>

Don't follow symlinks on coredumps.

Reviewed by: dillon && security-officer


Revision tags: release/3.2.0
# e972780a 17-May-1999 Alan Cox <alc@FreeBSD.org>

Add the options MAP_PREFAULT and MAP_PREFAULT_PARTIAL to vm_map_find/insert,
eliminating the need for the pmap_object_init_pt calls in imgact_* and
mmap.

Reviewed by: David Greenman <dg@root.com>


# e5f13bdd 15-May-1999 Alan Cox <alc@FreeBSD.org>

Simplify vm_map_find/insert's interface: remove the MAP_COPY_NEEDED option.

It never makes sense to specify MAP_COPY_NEEDED without also specifying
MAP_COPY_ON_WRITE, and vice versa. Thus, MAP_COPY

Simplify vm_map_find/insert's interface: remove the MAP_COPY_NEEDED option.

It never makes sense to specify MAP_COPY_NEEDED without also specifying
MAP_COPY_ON_WRITE, and vice versa. Thus, MAP_COPY_ON_WRITE suffices.

Reviewed by: David Greenman <dg@root.com>

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# e37622b2 09-May-1999 Peter Wemm <peter@FreeBSD.org>

Fix a couple of warnings and some bitrot in comments.


# 4fe88fe6 04-Apr-1999 John Polstra <jdp@FreeBSD.org>

Restore support for executing BSD/OS binaries on the i386 by passing
the address of the ps_strings structure to the process via %ebx.
For other kinds of binaries, %ebx is still zeroed as before.

Sub

Restore support for executing BSD/OS binaries on the i386 by passing
the address of the ps_strings structure to the process via %ebx.
For other kinds of binaries, %ebx is still zeroed as before.

Submitted by: Thomas Stephens <tas@stephens.org>
Reviewed by: jdp

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# 0a91231d 10-Mar-1999 Alan Cox <alc@FreeBSD.org>

For clarity, use the "map" variable introduced by the last commit
throughout exec_aout_imgact.


# 2f33b2c0 04-Mar-1999 Alan Cox <alc@FreeBSD.org>

exec_aout_imgact should lock the vm_map before calling vm_map_insert.

Reviewed by: Matthew Dillon <dillon@apollo.backplane.com>,
"John S. Dyson" <dyson@iquest.net>, and
David Greenman <dg@root.c

exec_aout_imgact should lock the vm_map before calling vm_map_insert.

Reviewed by: Matthew Dillon <dillon@apollo.backplane.com>,
"John S. Dyson" <dyson@iquest.net>, and
David Greenman <dg@root.com>

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