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Currently there is only support for amd64, if this change settles
I will add support for the rest of the architectures.
OK kettenis@.
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ok pirofti@
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for blocks re-fetchable from the filesystem. However at reboot time,
filesystems are unmounted, and since processes lack backing store they
are killed. Since the scheduler is still running, in some cases init is
killed... which drops us to ddb [noted by bluhm]. Solution is to convert
filesystems to read-only [proposed by kettenis]. The tale follows:
sys_reboot() should pass proc * to MD boot() to vfs_shutdown() which
completes current IO with vfs_busy VB_WRITE|VB_WAIT, then calls VFS_MOUNT()
with MNT_UPDATE | MNT_RDONLY, soon teaching us that *fs_mount() calls a
copyin() late... so store the sizes in vfsconflist[] and move the copyin()
to sys_mount()... and notice nfs_mount copyin() is size-variant, so kill
legacy struct nfs_args3. Next we learn ffs_mount()'s MNT_UPDATE code is
sharp and rusty especially wrt softdep, so fix some bugs adn add
~MNT_SOFTDEP to the downgrade. Some vnodes need a little more help,
so tie them to &dead_vnops.
ffs_mount calling DIOCCACHESYNC is causing a bit of grief still but
this issue is seperate and will be dealt with in time.
couple hundred reboots by bluhm and myself, advice from guenther and
others at the hut
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From Klemens Nanni.
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mount point. Print it to allow debugging through the data structures
from there.
OK krw@
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Send an uncatchable SIGABRT to the process specified by the pid
argument. Useful in case of CPU exhaustion to kill the DoSing
process and generate a core for later inspection.
ok phessler@, visa@, kettenis@, miod@
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functionnalities are available in GENERIC.
ok jasper@, deraadt@, guenther@, dlg@
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this lets you inspect arbitrary memory in the kernel as a specified
struct.
ok mpi@ jasper@
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Changing the "print" command to use db_ctf_pprint_cmd() broke all documented
uses and "examine" does not allow printing variables, or individual registers.
For now it is better to leave the "print" command intact, and in sync with the
ddb(4) man page, but we still want "pp[rint]" to replace the "print" command
when it works better.
ok mpi@
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Casting a type is not yet supported.
ok kettenis@, jasper@
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Go-ahead from kettenis@, guenther@, deraadt@
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with db_show_regs().
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ok mlarkin@
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should help inspecting socket issues in the future.
enthusiasm from mpi@ bluhm@ deraadt@
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have any direct symbols used. Tested for indirect use by compiling
amd64/i386/sparc64 kernels.
ok tedu@ deraadt@
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Now, for kernel to "reboot" (reboot, halt, or shutdown), MD boot(9) is called
in some places. This change introduces a new MI function reboot(9) which is
simply a wrapper to call MD boot(9).
OK kettenis@ deraadt@
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use TAILQ_*_SAFE more than might be needed.
Bulk ports build by sthen@ showed nobody sticking their fingers
so deep into the kernel.
Feedback and suggestions from millert@. ok jsing@
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such commands are implemented.
"Ja! You'll need to update ddb.4 as well, of course." miod@
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option was settled on. Fix those last couple so that the new
commands are actually accessible.
"Oops" miod@
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ok beck@ thib@
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and rewrite the nfsreq code to use pool_walk().
OK beck@, blambert@
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ddb does keyword matching so i missed this.
spotted by jasper@
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this.
ok beck@, dlg@
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a few arches where toolchain limitations apply) will embed some symbolic
information about the various structs used within the kernel, and have
new ddb commands allowing struct display and some useful information
gathering. Kernel rodata increase varies accross platforms from ~150KB to
~300KB.
This option is not enabled by default.
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1) fix buffer cache low water mark to allow for extremely low memory machines
without dying
2) Add "show bcstats" to ddb to allow for looking at the buffer cache statistics in ddb
ok art@ oga@
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be NULL on panic. Of course, panic usually never produce enough output to
hit db_more(), except when it's cold and we run an automatic traceback;
aborting the traceback with `q' would then lead to undefined behaviour.
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have been going on. this appears to bring us back to stable state.
lots of testing by oga and ariane and my self.
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one by tedu@. It doesn't do anything smart yet, it just uses
plain old disksort. we also keep the old method of queueing bufs
since some miods have crazy MD drivers that need some love.
ok beck@, art@
tested by many on many archs.
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debug stuff inside #ifdef NFSCLIENT.
prompted by todd, miod
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and to print out struct nfsreq.
"get it in so people can pound on it" blambert@
OK and information_s_ on the manpage from miod@
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some radix configurations.
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change inteded.
ok ray@
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useful; miod@ ok
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will make pedro happy too (;
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Will hopefully bring us better panic reports.
From Joris Vink.
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translates a cpu_info structure into a human-readable cpu number.
drahn@ deraadt@ ok
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KNF lesson and ok from niklas@
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