search for: curthread

...hrtime_t timeuser; this hrtime_t timesystem; this hrtime_t timewait; this int in; dtrace:::BEGIN { this -> start = timestamp; this -> timeidle = 0; this -> timeuser = 0; this -> timesystem = 0; this -> timewait = 0; this -> in = 0; } sched:::on-cpu { this -> timeidle = curthread -> t_cpu -> cpu_acct[2]; this -> timeuser = curthread -> t_cpu -> cpu_acct[0]; this -> timesystem = curthread -> t_cpu -> cpu_acct[1]; this -> in = 1; } sched:::off-cpu /this->in/ { @user = sum(curthread->t_cpu->cpu_acct[0] - this...

Hello, I''m working with full virtual FreeBSD 8.2-RELEASE-p1 amd64 domU under debian squeeze and xen-hypervisor-4.0-amd64. If I cfg this hvm with cpu > 4 : vcpus = 5 the server is blocked by these messages : fpudna: fpcurthread == curthread XXXX times The machine is pingable but I''m unable to ssh to it. On single user, freebsd works fine, fsck an so on ok, but when switching to multiuser these fpudna messages start flooding. I''ve googled but haven''t found anything; something from 2005 about f...

Hello, I see a reproducable panic when doing ibping and aborting it with ^C. My setup is two machines with Mellanox Infinihost III HCAs (one Linux one FreeBSD) connected back-to-back. Details below. I can upload 2 crash dumps, if this is useful. For some reason the port doesn't become ACTIVE, so no packets arrive, but that is probably unrelated. % uname -a FreeBSD cosel.inf.tu-dresden.de

How would I determine the address of the ulwp_t structure for the current thread of a process from a 32-bit i386 executable looking at a 32-bit executable? (This is in support of a fix for 6593259: "libdtrace should prefer pid probes to breakpoints".) For example, if I compile the following code 64-bit snippet, I can get that address from 32-bit or 64-bit executables:

I would like to know how to get access to errno when using pid provider to probe calls to libc functions like fopen(). The built-in errno appears to be only for system calls. What I''d like to be able to do is investigate where in an application I''m encountering EMFILE and what the stack looks like at the time. This message posted from opensolaris.org

I''m interested in monitoring the amount of stack used by a multi-threaded program. I assume ''stackdepth'' built-in would be useful...but not sure. Been through demo''s, ToolKit, and internals..but it''s just not clicking for me yet. Not sure how to measure start/end of stack size dynamically...Anyone know how to break this down? This message posted from

Hi, I was going through the implementation of the fasttrap provider. I found that when displaced execution happens (ie., when the instruction traced is being executed out of the scratch space) if an asynchrnous signal comes we need to defer the delivery. Can somebody explain why this is necessary and how is it implemented? Thanks in advance Saravanan S -------------- next part -------------- An

Hi all, I am trying to write a D script which would print ustack() for every program in the system receiving SIGSEGV. All the stacks printed in trap()/sigtoproc() context do not have meaningful symbols. The following solves the problem to some degree but I''d much rather have a self-contained D script. dtrace -w -n ''fbt:genunix:sigtoproc:entry/arg2 == 11/ {

Hi, I think I found a bug in the rw_enter() implementation (emulation?) in libzpool, file /usr/src/lib/libzpool/common/kernel.c: void rw_enter(krwlock_t *rwlp, krw_t rw) { ASSERT(!RW_LOCK_HELD(rwlp)); ASSERT(rwlp->rw_owner != (void *)-1UL); ASSERT(rwlp->rw_owner != curthread); if (rw == RW_READER) (void) rw_rdlock(&rwlp->rw_lock); else (void) rw_wrlock(&rwlp->rw_lock); rwlp->rw_owner = curthread; } Doesn''t RW_LOCK_HELD() check if there''s a reader or a writer locked? If it does, then these read-write locks would produce an a...

I''m using a fbt probe where I get a system call id as an argument, how do I look up the name of it? At the moment I''m post-processing the output using /etc/name/to_sysnum but that doesn''t feel right :) cheers, /Martin -- This message posted from opensolaris.org

...so.1...done. #0 0x2811a781 in _spinlock_debug () from /usr/lib/libc_r.so.4 (gdb) bt full #0 0x2811a781 in _spinlock_debug () from /usr/lib/libc_r.so.4 No symbol table info available. #1 0x2811e726 in _pthread_mutex_lock (mutex=0x80b99d4) at /usr/src/lib/libc_r/uthread/uthread_mutex.c:445 curthread = (struct pthread *) 0x8075800 ret = 0 #2 0x8067576 in ldap_pvt_thread_mutex_lock (mutex=0x80b99d4) at thr_posix.c:165 mutex = (ldap_pvt_thread_mutex_t *) 0x1 #3 0x804b832 in slapd_daemon (port=0x185) at daemon.c:344 from = {sin_len = 16 '\020', sin_family = 2 '...

Hi, I''m trying to trace the io of a given file, but I have a feeling that it''s been done via a script, as such I''d like to be able to tell the names of the calling processe tree, similar to what ptree produces. Is there any way to get this information without running ptree using system()? Thanks, Darren.

Just to let people know what my big picture is, I''m trying to write a script that will let me run a program, and name a progeny of that program that I want to debug. My script should find the first occurrence of that progeny, and run it until it finishes initializing the runtime linker, but stop it before it runs any shared library startup routines. (Failing that, I''d be okay

...s10/s11, so that the statement... struct kqemu_user_page * CDECL kqemu_lock_user_page(unsigned long *ppage_index, unsigned long user_addr) { proc_t *p = curproc; sets ''p'' to a junk proc_t*. % grep curproc /usr/include/sys/thread.h #define curproc (ttoproc(curthread)) /* current process pointer */ Compiling on S9 for S9 might fix it, but I''ve not yet tested that...

..., (kgdb) list 1272 while (mp->mnt_kern_flag & MNTK_SUSPEND) 1273 msleep(&mp->mnt_flag, MNT_MTX(mp), PUSER - 1, "wsuspfs", 0); 1274 mp->mnt_kern_flag |= MNTK_SUSPEND; 1275 mp->mnt_susp_owner = curthread; 1276 if (mp->mnt_writeopcount > 0) 1277 (void) msleep(&mp->mnt_writeopcount, 1278 MNT_MTX(mp), (PUSER - 1)|PDROP, "suspwt", 0); 1279 else 1280 MNT_IUNLOCK(mp); 1281 if ((error = VFS_SYN...

...from a syscall and copying >them in a kspace >pointer in order to accessing them. The code to do that is the following: > >void >syscall(frame) > struct trapframe frame; >{ > caddr_t params; > struct sysent *callp; > struct thread *td = curthread; > struct proc *p = td->td_proc; > register_t orig_tf_eflags; > u_int sticks; > int error; > int narg; > int args[8]; > u_int code; > > > ... > > > narg = callp->sy_narg & SYF_AR...

This came up as an RFE during the conference (I believe it''s been logged as "4012008: brendan() action needed for DTrace Toolkit".) As everyone here is aware, DTrace is not quite as user friendly as it could be. For the uninitiated, it can be confusing to run a DTrace script and not see the expected output. Brendan Gregg has addressed this in the DTrace Toolkit[1] by

Occasionally stopping amd freezes my system. It's a rare occurrence, and I haven't found a reliable way to reproduce it. It's also a real freeze, so there's no way to get into the debugger or grab a core dump. I only can perform the 4 seconds hard shutdown to revive the system. I run amd through sysutils/automounter, which is a scripting solution that generates an amd.map file

...[idle: cpu6] 11 0 0 0 RL CPU 7 [idle: cpu7] 1 0 1 0 SLs wait 0xc6793ae0 [init] 10 0 0 0 SL audit_wo 0xc0cb40a4 [audit] 0 0 0 0 SLs sched 0xc0c542c0 [swapper] db> show pcpu cpuid = 1 curthread = 0xc74c6690: pid 768 "bsdtar" curpcb = 0xed2ddd90 fpcurthread = none idlethread = 0xc67a7460: pid 17 "idle: cpu1" APIC ID = 1 currentldt = 0x50 spin locks held: db> show allpcpu Current CPU: 1 cpuid = 0 curthread = 0xc67a7230: pid 18 "idle:...

...ole reenter thing is quite a hack that at least requires clear explanation. 12. 715 if (!(sqp->sq_state & SQS_REENTER) && 716 (process_flag != SQ_FILL) && (sqp->sq_first == NULL) && 717 (sqp->sq_run == curthread) && (cnt == 1) && 718 (connp->conn_on_sqp == B_FALSE)) { How can it happen that sq_run != NULL && connp->conn_on_sqp == B_FALSE? 13. 630 if (connp->conn_sqp == sqp) { 631 SQUEUE_DBG_S...