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
...
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
Balazs Gerofi
d5c243571f
cpu_clear_and_set(): atomic CPU mask update in migration code
2015-08-06 10:49:55 +09:00
Balazs Gerofi
328e69a335
schedule(): do not preempt while holding spinlocks or while in offloaded syscall
2015-08-06 10:36:13 +09:00
Balazs Gerofi
b77755d0f7
obtain_clone_cpuid(): always start from CPU 0 and fill in cores linearily
2015-07-28 20:20:47 +09:00
Balazs Gerofi
d7bae14707
TEMPORARY: schedule(): move threads when core is explicitly oversubscribed
2015-07-28 20:12:58 +09:00
Balazs Gerofi
4e58d08f5c
schedule_timeout(): give a chance to other process in spin sleep if CPU core is oversubscribed
2015-07-28 20:06:56 +09:00
Balazs Gerofi
9b1e691588
fix thread migration code (i.e., sched_setaffinity())
...
- moved migration code into idle() process and updated schedule() to detect
when a thread has moved to another CPU in order to avoid doing housekeeping
on behalf of the original one
- start CPU head from core 0
- keeps track of nested interrupts
2015-07-24 20:09:17 +09:00
Balazs Gerofi
3988b0fc61
keep track of IRQ context and don't do thread migration there
2015-07-23 16:56:58 +09:00
Balazs Gerofi
54eb345847
settid(): prevent modifying tid after thread migration
2015-07-23 16:51:24 +09:00
Tomoki Shirasawa
bbe7aef95b
fix calling do_signal (argument lacked)
2015-07-17 10:18:43 +09:00
Tomoki Shirasawa
1ff4cf68c2
support SA_RESTART flag and restart syscall
2015-07-16 16:33:14 +09:00
Tomoki Shirasawa
1bc84d3feb
modify to copy credentials
2015-07-13 15:29:26 +09:00
Balazs Gerofi
f7d78c8b7d
sched_getaffinity(): return EINVAL for 0 lenght request (fixes LTP sched_getaffinity01)
2015-07-10 11:00:43 +09:00
Balazs Gerofi
7647c99cc2
do_migrate(): disable IRQ while holding migq_lock to avoid deadlocking with reschedule interrupts
2015-07-09 15:23:28 +09:00
Balazs Gerofi
43a774fbfc
sched_setaffinity(): undo target core change, avoid abort on length mismatch
2015-07-09 11:00:26 +09:00
Balazs Gerofi
a029bcac37
mcreboot-smp-x86: find unused IRQ line and pass start vector to ihk_smp_x86.ko
2015-07-07 09:07:16 +09:00
Balazs Gerofi
bd913c503b
sched_setaffinity(): find an actual target core
2015-07-03 11:59:52 +09:00
Tomoki Shirasawa
e838affde8
fix to compile error on CentOS 7
2015-07-02 17:08:35 +09:00
Tomoki Shirasawa
59ee251e1c
fix /proc/pid/mem, /proc/pid/status, /proc/pid/cmdline
2015-07-02 00:22:35 +09:00
Tomoki Shirasawa
fa79db3bcc
fix out of tree build
2015-07-01 23:58:50 +09:00
Tomoki Shirasawa
b7c5cba361
fix to compile on CentOS 6
2015-07-01 23:57:40 +09:00
Balazs Gerofi
382614ddae
pstate: use MSR_NHM_TURBO_RATIO_LIMIT as maximum single-core turbo ratio
2015-07-01 22:18:38 +09:00
Tomoki Shirasawa
aa959c6b34
temporary fix for CentOS 6.x
2015-06-30 18:19:53 +09:00
Tomoki Shirasawa
aabc3d386d
support a function to execute mcexec automatically.
2015-06-30 17:47:01 +09:00
Balazs Gerofi
4ebe778ede
vm->exiting: deal with exit_group() and concurrent page faults
2015-06-25 16:04:04 +09:00
Balazs Gerofi
fbb776e4fb
cpu init: support for no_turbo kernel argument
2015-06-25 12:18:27 +09:00
Balazs Gerofi
41b85281a4
mcctrl: introduction of RUS page hash to handle page refcounts properly
2015-05-31 15:42:39 +09:00
Balazs Gerofi
5532e3c663
mcreboot script for new IHK SMP-x86 I/F
2015-05-26 14:41:28 +09:00
Tomoki Shirasawa
2af2b1205f
temporary fix for setfsuid/setfsgid
2015-05-19 06:27:59 +09:00
Tomoki Shirasawa
7d5a68be1b
add PID and GID to /proc/pid/status
...
add /proc/pid/cmdline
refs #445
refs #447
2015-05-18 17:45:37 +09:00
Tomoki Shirasawa
f4162dff52
some signals set siginfo.si_code
2015-04-14 15:11:36 +09:00
NAKAMURA Gou
a0d909af75
add supports for dump analyzer
2015-03-31 12:59:53 +09:00
Tomoki Shirasawa
63669b7f71
support /proc/pid/status for LTP mmap14
2015-03-28 14:20:07 +09:00
