1 /*- 2 * Copyright (c) 1993 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/ddb/db_ps.c,v 1.20 1999/08/28 00:41:09 peter Exp $ 34 * $DragonFly: src/sys/ddb/db_ps.c,v 1.15 2005/12/23 21:35:44 swildner Exp $ 35 */ 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/proc.h> 39 #include <sys/cons.h> 40 41 #include <ddb/ddb.h> 42 43 static void db_dump_td_tokens(thread_t td); 44 45 void 46 db_ps(db_expr_t dummy1, boolean_t dummy2, db_expr_t dummy3, char *dummy4) 47 { 48 int np; 49 int cpuidx; 50 int nl = 0; 51 volatile struct proc *p, *pp; 52 53 np = nprocs; 54 55 if (allproc.lh_first != NULL) 56 p = allproc.lh_first; 57 else 58 p = &proc0; 59 60 if (db_more(&nl) < 0) 61 return; 62 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 63 while (--np >= 0) { 64 /* 65 * XXX just take 20 for now... 66 */ 67 if (db_more(&nl) < 0) 68 return; 69 if (p == NULL) { 70 printf("oops, ran out of processes early!\n"); 71 break; 72 } 73 pp = p->p_pptr; 74 if (pp == NULL) 75 pp = p; 76 77 db_printf("%5d %8p %8p %4d %5d %5d %06x %d", 78 p->p_pid, (volatile void *)p, (void *)p->p_thread->td_pcb, 79 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 80 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, p->p_stat); 81 if (p->p_wchan) { 82 db_printf(" %6s %8p", p->p_wmesg, (void *)p->p_wchan); 83 } else { 84 db_printf(" "); 85 } 86 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 87 db_dump_td_tokens(p->p_thread); 88 89 p = p->p_list.le_next; 90 if (p == NULL && np > 0) 91 p = zombproc.lh_first; 92 } 93 94 /* 95 * Dump running threads 96 */ 97 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { 98 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; 99 thread_t td; 100 int j; 101 102 if (db_more(&nl) < 0) 103 return; 104 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", 105 gd->gd_cpuid, gd->gd_runqmask, 106 gd->gd_curthread, gd->gd_reqflags); 107 db_printf(" uschedcp %p (%d/%d) upri %d\n", 108 gd->gd_uschedcp, 109 (gd->gd_uschedcp ? gd->gd_uschedcp->lwp_proc->p_pid : -1), 110 (gd->gd_uschedcp ? gd->gd_uschedcp->lwp_tid : -1), 111 gd->gd_upri); 112 if (gd->gd_curthread && gd->gd_curthread->td_preempted) { 113 db_printf(" PREEMPTING THREAD %p\n", 114 gd->gd_curthread->td_preempted); 115 } 116 117 if (gd->gd_tokreqbase) { 118 lwkt_tokref_t ref; 119 120 if (db_more(&nl) < 0) 121 return; 122 db_printf(" tokenrequests:"); 123 for (ref = gd->gd_tokreqbase; ref; ref = ref->tr_next) { 124 db_printf(" [r=%p,t=%p]", ref, ref->tr_tok); 125 } 126 db_printf("\n"); 127 } 128 if (db_more(&nl) < 0) 129 return; 130 db_printf(" INCOMMING IPIQS:"); 131 for (j = 0; j < ncpus; ++j) { 132 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 133 if (ip != NULL) { 134 ip = &ip[cpuidx]; 135 if (ip->ip_windex != ip->ip_rindex) 136 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 137 } 138 } 139 db_printf("\n"); 140 141 if (db_more(&nl) < 0) 142 return; 143 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 144 for (np = 0; np < 32; ++np) { 145 TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { 146 if (db_more(&nl) < 0) 147 return; 148 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 149 np, td, 150 (td->td_proc ? td->td_proc->p_pid : -1), 151 td->td_flags, 152 td->td_pri & TDPRI_MASK, 153 td->td_pri / TDPRI_CRIT, 154 #ifdef SMP 155 td->td_mpcount, 156 #else 157 0, 158 #endif 159 td->td_sp, 160 td->td_wmesg ? td->td_wmesg : "-", 161 td->td_proc ? td->td_proc->p_comm : td->td_comm); 162 if (td->td_preempted) 163 db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); 164 db_dump_td_tokens(td); 165 } 166 } 167 if (db_more(&nl) < 0) 168 return; 169 db_printf("\n"); 170 if (db_more(&nl) < 0) 171 return; 172 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 173 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 174 if (db_more(&nl) < 0) 175 return; 176 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 177 np, td, 178 (td->td_proc ? td->td_proc->p_pid : -1), 179 td->td_flags, 180 td->td_pri & TDPRI_MASK, 181 td->td_pri / TDPRI_CRIT, 182 #ifdef SMP 183 td->td_mpcount, 184 #else 185 0, 186 #endif 187 td->td_sp, 188 td->td_wmesg ? td->td_wmesg : "-", 189 td->td_proc ? td->td_proc->p_comm : td->td_comm); 190 db_dump_td_tokens(td); 191 } 192 } 193 if (db_more(&nl) < 0) 194 return; 195 db_printf("CURCPU %d CURTHREAD %p (%d) USCHEDCP %p (%d/%d) UPRI %d\n", 196 mycpu->gd_cpuid, 197 curthread, 198 (curthread->td_proc ? curthread->td_proc->p_pid : -1), 199 mycpu->gd_uschedcp, 200 (mycpu->gd_uschedcp ? mycpu->gd_uschedcp->lwp_proc->p_pid : -1), 201 (mycpu->gd_uschedcp ? mycpu->gd_uschedcp->lwp_tid : -1), 202 mycpu->gd_upri); 203 db_dump_td_tokens(curthread); 204 } 205 206 static void 207 db_dump_td_tokens(thread_t td) 208 { 209 lwkt_tokref_t ref; 210 lwkt_token_t tok; 211 212 if (td->td_toks == NULL) 213 return; 214 db_printf(" TOKENS:"); 215 for (ref = td->td_toks; ref; ref = ref->tr_next) { 216 tok = ref->tr_tok; 217 218 db_printf(" %p[tok=%p", ref, ref->tr_tok); 219 if (td->td_gd == tok->t_cpu) 220 db_printf(",held"); 221 if (ref->tr_magic == LWKT_TOKREF_MAGIC1) 222 ; 223 else if (ref->tr_magic == LWKT_TOKREF_MAGIC2) 224 db_printf(",wait"); 225 else 226 db_printf(",badmagic"); 227 db_printf("]"); 228 } 229 db_printf("\n"); 230 } 231 232