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aa14e9b7c9
freebsd-nq/sys/conf
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Mark Johnston aa14e9b7c9 Reimplement support for userland core dump compression using a new interface 
in kern_gzio.c. The old gzio interface was somewhat inflexible and has not
worked properly since r272535: currently, the gzio functions are called with
a range lock held on the output vnode, but kern_gzio.c does not pass the
IO_RANGELOCKED flag to vn_rdwr() calls, resulting in deadlock when vn_rdwr()
attempts to reacquire the range lock. Moreover, the new gzio interface can
be used to implement kernel core compression.

This change also modifies the kernel configuration options needed to enable
userland core dump compression support: gzio is now an option rather than a
device, and the COMPRESS_USER_CORES option is removed. Core dump compression
is enabled using the kern.compress_user_cores sysctl/tunable.

Differential Revision:	https://reviews.freebsd.org/D1832
Reviewed by:	rpaulo
Discussed with:	kib
2015-03-09 03:50:53 +00:00
..
config.mk Populate new KERN_OPTS from all the opt_*.h files in 2015-02-18 15:25:19 +00:00
dtb.mk Prefer install over mkdir to create the directory. Add test to ensure 2015-02-09 16:29:44 +00:00
files Add infrastructure for exporting config schema from PF drivers 2015-03-01 00:40:42 +00:00
files.amd64 Record the dependency to x86bios in vga_pci 2015-03-01 20:54:29 +00:00
files.arm Use the ARM unwinder with dtrace to extract the stack when asked. With this 2015-02-19 12:20:21 +00:00
files.i386 Record the dependency to x86bios in vga_pci 2015-03-01 20:54:29 +00:00
files.mips Merge all MD sf_buf allocators into one MI, residing in kern/subr_sfbuf.c 2014-08-05 09:44:10 +00:00
files.pc98 Merge pc98's machdep.c into i386/i386/machdep.c. 2014-10-04 06:01:30 +00:00
files.powerpc Remove FreeBSD/wii. 2015-02-10 06:35:16 +00:00
files.sparc64 Add a simple unaccelerated vt(4) framebuffer driver for Sun framebuffers 2014-08-05 18:19:51 +00:00
kern.mk Use appropriate alternative to -msoft-float for clang-built PowerPC kernels. 2015-02-27 20:32:50 +00:00
kern.opts.mk Enforce that MK_foo options shall be either "yes" or "no" and nothing 2015-02-09 16:03:55 +00:00
kern.post.mk Truncate the ctfmerge command line, like we do with SYSTEM_LD. 2014-08-12 23:48:37 +00:00
kern.pre.mk Globally enable -fms-extensions when building kernel with gcc, and remove 2015-02-17 19:27:14 +00:00
kmod_syms.awk
kmod.mk Allow the ARM unwinder to work through modules. This will be used to add 2015-02-19 12:06:57 +00:00
ldscript.amd64
ldscript.arm Remove STARTUP_PAGETABLE_ADDR from the ARM configs and replace it with 2014-01-28 09:12:04 +00:00
ldscript.i386
ldscript.mips
ldscript.mips.cfe
ldscript.mips.mips64
ldscript.mips.octeon1
ldscript.powerpc Refactor PowerPC (especially AIM) init sequence to be less baroque. 2015-01-18 18:32:43 +00:00
ldscript.powerpc64 Refactor PowerPC (especially AIM) init sequence to be less baroque. 2015-01-18 18:32:43 +00:00
ldscript.sparc64
Makefile.amd64 Clang's 3.5 integrated assembler now handles these files correctly (it 2015-01-05 12:28:22 +00:00
Makefile.arm Since for clang 3.5.0 ARM EHABI is now the default, the -mllvm 2014-11-26 23:28:16 +00:00
Makefile.i386 Clang's 3.5 integrated assembler now handles these files correctly (it 2015-01-05 12:28:22 +00:00
Makefile.mips Bump the version of config to the latest (3 year old, so upgrade 2014-02-04 18:24:25 +00:00
Makefile.pc98 Clang's 3.5 integrated assembler now handles these files correctly (it 2015-01-05 12:28:22 +00:00
Makefile.powerpc Make 32-bit PowerPC kernels, like 64-bit PowerPC kernels, position-independent 2015-03-07 20:14:46 +00:00
Makefile.sparc64 Bump the version of config to the latest (3 year old, so upgrade 2014-02-04 18:24:25 +00:00
makeLINT.mk Generate a LINT for powerpc and for powerpc64. 2013-04-11 22:18:20 +00:00
makeLINT.sed
newvers.sh Don't require ${SYSDIR}/../COPYRIGHT to exist. Fall back to the 2014-12-22 19:10:21 +00:00
NOTES Reimplement support for userland core dump compression using a new interface 2015-03-09 03:50:53 +00:00
options Reimplement support for userland core dump compression using a new interface 2015-03-09 03:50:53 +00:00
options.amd64 imagact_binmisc builds for all supported architectures, so enable it for all. 2014-05-22 05:04:40 +00:00
options.arm Add arm option ARM_NEW_PMAP, to allow us to begin adding the new pmap 2014-12-30 02:51:04 +00:00
options.i386 Garbage collect the asr driver. Hardware for it has not been produced in 2015-01-02 05:34:14 +00:00
options.mips Introduce opt_netfpga.h and allow setting NF10BMAC_64BIT from mips kernel 2014-06-26 17:20:45 +00:00
options.pc98 Reduce diffs against i386. 2014-10-04 05:03:39 +00:00
options.powerpc Remove FreeBSD/wii. 2015-02-10 06:35:16 +00:00
options.sparc64 - While Netra X1 generally show no ill effects when registering a power 2013-03-02 00:37:31 +00:00
systags.sh
WITHOUT_SOURCELESS
WITHOUT_SOURCELESS_HOST Retire the nve(4) driver; nfe(4) has been the default driver for NVIDIA 2014-02-16 12:22:43 +00:00
WITHOUT_SOURCELESS_UCODE The sn driver doesn't actually include microcode at the current time, 2014-12-30 02:39:44 +00:00