54e9432c0a
Prevent recursive IO signals. This prevents crashes when pieces of text are
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pasted in say an Xterm. Each char might create a SIGIO running out of
stackspace very quickly!
2012-02-15 15:20:53 +00:00
7775733971
Add cpu_spawn_return() as per other archs to make it compile. No tests done
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yet.
2012-02-13 19:15:59 +00:00
5cbe80301b
Fix /dev/kmem access and make vmstat(1) `work'. Not sure all the results are
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indeed valid or correct but at least it shows them without coredumping or
coredumping the kernel.
2012-02-08 17:55:21 +00:00
cdd53821b4
regen
2012-02-05 17:40:08 +00:00
b2bd15f503
With the recent kmem changes, remove the `unlimited' maximum setting of
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NKMEMPAGES from amd64 since it gets us into trouble.
2012-02-05 17:39:18 +00:00
b0130c6aff
regen
2012-02-05 14:27:08 +00:00
ab30bde8c6
Bump UPAGES effectively bumping per-process (system) stack i.e. the stack on
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which traps are taken. When it was 8 it could run out of space on big NFS
stack traces in combination with timer and memory paging.
2012-02-04 23:04:15 +00:00
1c948e16f7
spl_intr() is not defined anymore so remove from the header file
2012-02-02 11:13:41 +00:00
f1858320d3
Regen
2012-02-02 11:12:40 +00:00
1a5b67339c
Add cdefs.h to usermode's genheaders.sh
2012-02-02 11:10:24 +00:00
5d4c62d3c2
No need to explicitly use thunkbus at this place. thunkbus == mainbus on
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NetBSD/usermode
2012-01-23 12:08:31 +00:00
ff987fe24b
Fix compilation issue for target amd64.
2012-01-22 17:51:39 +00:00
1ea95bd622
Complete rewrite of the signal and spl framework for NetBSD/usermode
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Signals are now moved from the sigaltstack ASAP and stacked on a replacement
stack for each processes.
Preemption now works though could be enhanced a bit more
2012-01-21 22:09:56 +00:00
b74ba047d8
Add extra kasserts to make sure we dont derive paramters from zero ucp's
2012-01-21 22:05:06 +00:00
efe1d0c784
Add the complement to sigemptyset(), sigfillset()!
2012-01-21 19:17:33 +00:00
1a01d66147
My fault, forgot that cpu_need_resched() is indeed already declared as a function
2012-01-19 12:14:49 +00:00
aacc91c6de
Add macro cpu_need_resched
2012-01-19 12:10:00 +00:00
20157f98bc
Create an atomic switchto() that has SIGALRM and SIGIO signals blocked that
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might otherwise disrupt the setting of curlwp to match the lwp context.
2012-01-18 19:17:02 +00:00
3dd9fb8df0
Another step towards unification of the signal handers: separate the printing
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of details usefull for debugging / porting from the main code.
2012-01-18 12:39:45 +00:00
141ab8a064
Do init the astpending variable.
2012-01-17 20:50:38 +00:00
e6afed1597
Clean up userret/ast handling. Now called ONLY when its 100% clear that it is
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returning to userland.
2012-01-17 19:46:55 +00:00
bf48f3f746
close file descriptors at shutdown
2012-01-15 10:51:12 +00:00
bd720a636c
sync disks and unmount at shutdown, and run shutdownhooks + pmf shutdown
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handlers
2012-01-15 10:45:03 +00:00
3253211708
if syscallemu returns -1 and sets errno = EACCES, it means it's already
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enabled for this pid. don't treat this as a failure.
2012-01-15 10:35:08 +00:00
54fbc97dfe
don't modify command-line parameters
2012-01-15 10:30:21 +00:00
a60846ba16
allow specifing the root device with 'root=ldN' parameter
2012-01-15 10:18:58 +00:00
e3566f5c30
Add options INSECURE, as sysinst requires it. Now I can boot an x86 install
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CD image.
2012-01-15 00:25:33 +00:00
ae49ab9d52
add cd9660
2012-01-15 00:15:23 +00:00
7752740c40
Reimplement userret() to also include AST for preemption.
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Note it would be nice if we could do the check "are we going to userland?" in
a less intrusive way.
2012-01-14 21:45:28 +00:00
367a9d86d8
Revert back to IPL_SOFTCLOCK so its lower than IPL_SHED
2012-01-14 21:42:51 +00:00
4d50950c67
Cleanup clock.c removing unneeded function
2012-01-14 21:24:52 +00:00
58b54606c8
Define astpending flag and the aston() setter
2012-01-14 21:23:24 +00:00
cc4db17f03
Regen
2012-01-14 21:21:48 +00:00
31abb16503
Bump UPAGES with one more to allow for AST processing. Somehow the space was a
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bit tight OR i am checking too regorously on stack space needed.
2012-01-14 21:20:56 +00:00
cd980be679
Revamp the NetBSD/usermode pagefault and illegal instruction handing. It now
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can handle recursive entry and is a lot more memory tight compared to the old
implementation. Performance wise:
* slightly less number of syscalls/sec possible though could be optimized
* a lot faster context creation / destruction making overall operation faster.
2012-01-14 17:42:51 +00:00
48ba6a6d8f
Update automatically generated headers
2012-01-14 17:36:32 +00:00
2150949848
Add md_get_sp() for MI stack frame manipulation. Note that NetBSD/usermode
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only works on decending stacks for now!
2012-01-14 17:31:09 +00:00
b56977fe32
Remove old comment about space not being freed; it is now done correctly so
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remove it to avoid confusion later.
2012-01-12 13:28:54 +00:00
ddb6e0d8d8
Cleanup trap.c and add a stop_all_signal_handlers(void) i: bluntly stopping
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all known usages of signal handlers, to be used in shutdown.
2012-01-11 12:40:26 +00:00
cf7b2e9156
Add thunk_close()
2012-01-11 12:37:50 +00:00
b008bd8cf7
Use thunk_madvise() on the memory space hinting the kernel we are using it in
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a random order and hint the kernel that we we need the memory.i
No measured effect on a memory file on tmpfs /tmp though.
2012-01-10 12:07:17 +00:00
82a0130cc0
Add thunk_madvise() for memory access hints to the host kernel.
2012-01-10 12:04:56 +00:00
f88a173e3d
Clarify comment about PAGER_MAP_DEFAULT_SIZE
2012-01-10 10:19:38 +00:00
77d1be9922
Explicitly protect the kernel image against tampering by marking it R-X
2012-01-10 10:09:49 +00:00
9222cee124
If the spl list is full also notify on the ttycons since it might otherwise
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not allways be possible to print the panic correctdue due to the spl level.
2012-01-09 22:20:53 +00:00
d74ce82ce1
Re-implement aio for ld_thunkbus. It seems to work fine though its not set by
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default; define LD_USE_AIO or uncomment its setting at the top of the
sourcefile to enable it.
2012-01-09 21:01:31 +00:00
8b9e5ff328
Don't directly call softint_shedule() when we might be in an SPL level too
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high.
2012-01-09 20:39:39 +00:00
02bc0c2173
also add union file system
2012-01-09 19:25:40 +00:00
c31558fc48
As ppn is a uintptr_t, it can never be negative so the check is invalid.
2012-01-09 14:58:15 +00:00
453f61bbf1
sizeof_t is allways >=0 and the check for >=0 thus allways is true and amd64
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complains about this. This might explain the odd write errors that could
sometimes be reported. Those are/were probably a side effect of this.
2012-01-09 14:56:35 +00:00
reinoud