/*- * Copyright (c) 1993 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/ddb/db_ps.c,v 1.20 1999/08/28 00:41:09 peter Exp $ * $DragonFly: src/sys/ddb/db_ps.c,v 1.25 2008/06/29 21:38:21 dillon Exp $ */ #include #include #include #include #include static void db_dump_td_tokens(thread_t td); void db_ps(db_expr_t dummy1, boolean_t dummy2, db_expr_t dummy3, char *dummy4) { int np; int cpuidx; int nl = 0; volatile struct proc *p, *pp; struct lwp *lp; np = nprocs; if (allproc.lh_first != NULL) p = allproc.lh_first; else p = &proc0; lp = FIRST_LWP_IN_PROC(__DEVOLATILE(struct proc *, p)); if (db_more(&nl) < 0) return; db_printf(" pid lwp uid ppid pgrp pflag lflag stat wmesg wchan cmd\n"); for (;;) { while (lp == NULL) { --np; p = p->p_list.le_next; if (p == NULL && np > 0) p = zombproc.lh_first; if (p == NULL) break; lp = FIRST_LWP_IN_PROC(__DEVOLATILE(struct proc *, p)); } /* * XXX just take 20 for now... */ if (db_more(&nl) < 0) return; if (p == NULL) { kprintf("oops, ran out of processes early!\n"); break; } pp = p->p_pptr; if (pp == NULL) pp = p; db_printf("%5d %8p %4d %5d %5d %06x %06x %d %d", p->p_pid, (volatile void *)lp, p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, lp->lwp_flag, p->p_stat, lp->lwp_stat); if (lp->lwp_wchan) { db_printf(" %6s %8p", (lp->lwp_wmesg ? lp->lwp_wmesg : "?"), lp->lwp_wchan); } else { db_printf(" "); } db_printf(" %s\n", p->p_comm ? p->p_comm : ""); db_dump_td_tokens(lp->lwp_thread); lp = lwp_rb_tree_RB_NEXT(lp); } /* * Dump running threads */ for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; thread_t td; int j; if (db_more(&nl) < 0) return; db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", gd->gd_cpuid, gd->gd_runqmask, gd->gd_curthread, gd->gd_reqflags); if (gd->gd_curthread && gd->gd_curthread->td_preempted) { db_printf(" PREEMPTING THREAD %p\n", gd->gd_curthread->td_preempted); } if (db_more(&nl) < 0) return; db_printf(" INCOMING IPIQS:"); for (j = 0; j < ncpus; ++j) { lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; if (ip != NULL) { ip = &ip[cpuidx]; if (ip->ip_windex != ip->ip_rindex) db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); } } db_printf("\n"); if (db_more(&nl) < 0) return; db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); for (np = 0; np < 32; ++np) { TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { if (db_more(&nl) < 0) return; db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", np, td, (td->td_proc ? td->td_proc->p_pid : -1), td->td_flags, td->td_pri & TDPRI_MASK, td->td_pri / TDPRI_CRIT, #ifdef SMP td->td_mpcount, #else 0, #endif td->td_sp, td->td_wmesg ? td->td_wmesg : "-", td->td_proc ? td->td_proc->p_comm : td->td_comm); if (td->td_preempted) db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); db_dump_td_tokens(td); } } if (db_more(&nl) < 0) return; db_printf("\n"); if (db_more(&nl) < 0) return; db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { if (db_more(&nl) < 0) return; db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", np, td, (td->td_proc ? td->td_proc->p_pid : -1), td->td_flags, td->td_pri & TDPRI_MASK, td->td_pri / TDPRI_CRIT, #ifdef SMP td->td_mpcount, #else 0, #endif td->td_sp, td->td_wmesg ? td->td_wmesg : "-", td->td_proc ? td->td_proc->p_comm : td->td_comm); db_dump_td_tokens(td); } } if (db_more(&nl) < 0) return; db_printf("CURCPU %d CURTHREAD %p (%d)\n", mycpu->gd_cpuid, curthread, (curthread->td_proc ? curthread->td_proc->p_pid : -1)); db_dump_td_tokens(curthread); } static void db_dump_td_tokens(thread_t td) { lwkt_tokref_t ref; lwkt_token_t tok; if (td->td_toks == NULL) return; db_printf(" TOKENS:"); for (ref = td->td_toks; ref; ref = ref->tr_next) { tok = ref->tr_tok; db_printf(" %p[tok=%p", ref, ref->tr_tok); #ifdef SMP if (td == tok->t_ref->tr_owner) db_printf(",held"); #endif db_printf("]"); } db_printf("\n"); }