Tomoki Shirasawa
04e193de13
refactoring process structures
2015-10-13 23:04:08 +09:00
Tomoki Shirasawa
2ca46fabfd
support reader/writer lock
2015-10-02 14:05:10 +09:00
Tomoki Shirasawa
5b737b499d
fix cmpxchgq operand
2015-10-02 14:04:05 +09:00
NAKAMURA Gou
cb4f3a4d65
take into account args/envs' offset in page
...
- prepare_process_ranges_args_envs()
2015-10-01 21:08:42 +09:00
NAKAMURA Gou
51789fcd38
initialize idle_vm for page faluts
2015-10-01 21:08:35 +09:00
NAKAMURA Gou
9f50c5dc3a
mcexec_wait_syscall: handle request even if signaled (reworked)
2015-09-29 19:53:40 +09:00
NAKAMURA Gou
cd905f7ad1
Revert "mcexec_wait_syscall: handle request even if signaled"
...
This reverts commit d862f345be
2015-09-29 19:52:36 +09:00
NAKAMURA Gou
79266f6b97
x86_issue_ipi: keep interrupt disabled while issuing IPI
2015-09-29 19:10:01 +09:00
NAKAMURA Gou
a666b69c2c
make x86_issue_ipi() call wait_icr_idle()
2015-09-29 19:10:01 +09:00
NAKAMURA Gou
47e8552eba
move wait_icr_idle() before x86_issue_ipi()
2015-09-29 19:10:00 +09:00
NAKAMURA Gou
8dd9175411
schedule: fix null pointer dereference
2015-09-29 19:10:00 +09:00
NAKAMURA Gou
f08e0c0054
guess whether MSR_PLATFORM_INFO exists or not
2015-09-29 19:10:00 +09:00
NAKAMURA Gou
d862f345be
mcexec_wait_syscall: handle request even if signaled
2015-09-24 21:35:30 +09:00
NAKAMURA Gou
a14768c49a
kmalloc: fix missing unlock on out-of-memory path
2015-09-18 21:26:15 +09:00
NAKAMURA Gou
56e57775e7
clone: fix error message
2015-09-18 21:26:15 +09:00
NAKAMURA Gou
b3b752ba41
nanosleep: use copy_from_user instead of direct access
2015-09-17 21:46:32 +09:00
NAKAMURA Gou
7b32f2f73b
nanosleep: fix tscs_rem underflow issue
2015-09-17 21:46:26 +09:00
NAKAMURA Gou
ea5a1a8693
nanosleep: update *rem whenever signaled
2015-09-17 21:44:49 +09:00
NAKAMURA Gou
92f8fb2b2b
nanosleep: use copy_to_user instead of direct access
2015-09-17 21:44:49 +09:00
NAKAMURA Gou
a3e440414d
nanosleep: cosmetic change
2015-09-17 21:44:49 +09:00
Yoichi Umezawa
10ba03ccea
mcreboot-smp-x86.sh: fix querying free irq
2015-09-17 13:19:07 +09:00
Balazs Gerofi
ccb7c30a05
page_fault_handler(): reenable preempt after failed PF when process is exiting
2015-09-17 10:05:32 +09:00
NAKAMURA Gou
7dfeb8e7ce
create demand-paging mapping in case of MAP_SHARED
...
On current McKernel, only mappings for demand paging can be shared.
Therefore, if MAP_SHARED and MAP_ANONYMOUS are specified and
anon_on_demand is disabled, then mmap(2) should create a mapping which
is for demand paging and is entirely populated with physical pages.
2015-09-16 21:38:00 +09:00
NAKAMURA Gou
b1b706453f
vsyscall: send SIGSEGV to the caller if syscall fails
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On CentOS 7 (RHEL 7?), "errno" isn't set when vsyscall_gettimeofday
fails. So, in such case, vsyscall_gettimeofday send SIGSEGV to the
caller to report failure of gettimeofday operation.
2015-09-16 21:37:11 +09:00
NAKAMURA Gou
bd5708286d
make sys_gettimeofday() use copy_to_user()
2015-09-16 21:26:32 +09:00
NAKAMURA Gou
c8a13cf213
make gettimeofday ignore NULL parameter
2015-09-16 21:26:24 +09:00
NAKAMURA Gou
5ad0a03d18
make gettimeofday handle second parameter (timezone)
2015-09-16 21:25:29 +09:00
NAKAMURA Gou
3819eec03f
cosmetic changes
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- sys_gettimeofday()
2015-09-16 21:13:12 +09:00
Balazs Gerofi
40b8587a8a
schedule(): sync CPU_FLAG_NEED_RESCHED flag with clone and migrate
2015-09-16 19:22:40 +09:00
Balazs Gerofi
e7b1115572
mcreboot-smp-x86.sh: introduction of ihk_ikc_irq_core argument
2015-09-14 17:30:25 +09:00
Balazs Gerofi
e1a01803d0
disable demand paging on ANONYMOUS mappings unless anon_on_demand kernel argument is passed
2015-09-14 17:26:37 +09:00
Balazs Gerofi
69f4b0e1ad
gettimeofday()/nanosleep(): check arguments, return on pending signal
2015-09-14 17:05:30 +09:00
Tomoki Shirasawa
0909a5bed5
tracee context is broken when tracee call execve
2015-09-03 10:05:25 +09:00
Tomoki Shirasawa
9dd224385e
When SIGSEGV occurred on a tracee process, a tracee process freezes.
2015-09-01 17:37:56 +09:00
Tomoki Shirasawa
4176c59fd3
using d_path for solution to file path.
2015-08-28 13:01:34 +09:00
Tomoki Shirasawa
afeee5432f
When envp is NULL, execve is delayed.
2015-08-28 13:00:45 +09:00
Balazs Gerofi
9ae5bcf46e
gettimeofday(): an implementation based on CPU invariant TSC support
2015-08-24 23:53:56 +02:00
Balazs Gerofi
b8f166e608
mcreboot-smp-x86.sh: handle resource allocation after unloading; mcstop+release-smp-x86.sh
2015-08-22 18:55:53 +09:00
Balazs Gerofi
c85a9b99e1
a couple of cosmetic changes of debug messages
2015-08-22 18:53:14 +09:00
Balazs Gerofi
7c816a6b73
an implementation of the Mellor-Crummey Scott (MCS) lock
2015-08-20 15:26:52 +09:00
Tomoki Shirasawa
5a0cd3f53f
ptrace_detach when exiting
...
refs #590
2015-08-18 18:03:09 +09:00
Balazs Gerofi
9fa62adfe7
execve(): stay compliant with locked context switching
2015-08-10 14:18:11 +09:00
Balazs Gerofi
f0ab8ec89a
sched_request_migrate(): change CPU flags atomically
2015-08-10 12:45:59 +09:00
Balazs Gerofi
f4cc82578d
check_need_resched(): no thread migration in IRQ context
2015-08-10 12:43:35 +09:00
Balazs Gerofi
9ba40dc0ff
schedule(): hold runq lock for the entire duration of context switching
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releasing the runq lock after loading page tables but before the actual
context switch can leave execution in an inconsistent if the current
process is descheduled from an IRQ between these two steps.
this patch holds the runq lock with IRQs disabled and makes the context
switch a single atomic operation.
2015-08-10 12:37:12 +09:00
Balazs Gerofi
8d6c97ea5c
schedule(): disable auto thread migration
2015-08-07 16:07:31 +09:00
Balazs Gerofi
386f59000a
mcreboot-smp-x86.sh.in: grant real user rw permission on /dev/mcos*
2015-08-07 13:33:44 +09:00
Balazs Gerofi
215cd370a1
ap_init(): clean up AP boot kernel messages
2015-08-07 10:57:59 +09:00
Balazs Gerofi
0a0e2c04a0
support for dynamically toggling time sharing when CPU is oversubscribed
2015-08-07 08:51:50 +09:00
Balazs Gerofi
aa191b87d3
schedule(): use XSAVE/XRSTOR and swap floating point registers in context switch
2015-08-07 08:41:00 +09:00
