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 1.13 2005/04/25 22:26:22 dillon 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(dummy1, dummy2, dummy3, dummy4) 47 db_expr_t dummy1; 48 boolean_t dummy2; 49 db_expr_t dummy3; 50 char * dummy4; 51 { 52 int np; 53 int cpuidx; 54 int nl = 0; 55 volatile struct proc *p, *pp; 56 57 np = nprocs; 58 59 if (allproc.lh_first != NULL) 60 p = allproc.lh_first; 61 else 62 p = &proc0; 63 64 if (db_more(&nl) < 0) 65 return; 66 db_printf(" pid proc addr uid ppid pgrp flag stat wmesg wchan cmd\n"); 67 while (--np >= 0) { 68 /* 69 * XXX just take 20 for now... 70 */ 71 if (db_more(&nl) < 0) 72 return; 73 if (p == NULL) { 74 printf("oops, ran out of processes early!\n"); 75 break; 76 } 77 pp = p->p_pptr; 78 if (pp == NULL) 79 pp = p; 80 81 db_printf("%5d %8p %8p %4d %5d %5d %06x %d", 82 p->p_pid, (volatile void *)p, (void *)p->p_thread->td_pcb, 83 p->p_ucred ? p->p_ucred->cr_ruid : 0, pp->p_pid, 84 p->p_pgrp ? p->p_pgrp->pg_id : 0, p->p_flag, p->p_stat); 85 if (p->p_wchan) { 86 db_printf(" %6s %8p", p->p_wmesg, (void *)p->p_wchan); 87 } else { 88 db_printf(" "); 89 } 90 db_printf(" %s\n", p->p_comm ? p->p_comm : ""); 91 db_dump_td_tokens(p->p_thread); 92 93 p = p->p_list.le_next; 94 if (p == NULL && np > 0) 95 p = zombproc.lh_first; 96 } 97 98 /* 99 * Dump running threads 100 */ 101 for (cpuidx = 0; cpuidx < ncpus; ++cpuidx) { 102 struct globaldata *gd = &CPU_prvspace[cpuidx].mdglobaldata.mi; 103 thread_t td; 104 int j; 105 106 if (db_more(&nl) < 0) 107 return; 108 db_printf("cpu %d tdrunqmask %08x curthread %p reqflags %04x\n", 109 gd->gd_cpuid, gd->gd_runqmask, 110 gd->gd_curthread, gd->gd_reqflags); 111 db_printf(" uschedcp %p (%d) upri %d\n", 112 gd->gd_uschedcp, 113 (gd->gd_uschedcp ? gd->gd_uschedcp->p_pid : -1), 114 gd->gd_upri); 115 if (gd->gd_curthread && gd->gd_curthread->td_preempted) { 116 db_printf(" PREEMPTING THREAD %p\n", 117 gd->gd_curthread->td_preempted); 118 } 119 120 if (gd->gd_tokreqbase) { 121 lwkt_tokref_t ref; 122 123 if (db_more(&nl) < 0) 124 return; 125 db_printf(" tokenrequests:"); 126 for (ref = gd->gd_tokreqbase; ref; ref = ref->tr_next) { 127 db_printf(" [r=%p,t=%p]", ref, ref->tr_tok); 128 } 129 db_printf("\n"); 130 } 131 if (db_more(&nl) < 0) 132 return; 133 db_printf(" INCOMMING IPIQS:"); 134 for (j = 0; j < ncpus; ++j) { 135 lwkt_ipiq_t ip = globaldata_find(j)->gd_ipiq; 136 if (ip != NULL) { 137 ip = &ip[cpuidx]; 138 if (ip->ip_windex != ip->ip_rindex) 139 db_printf(" cpu%d:%d", j, ip->ip_windex - ip->ip_rindex); 140 } 141 } 142 db_printf("\n"); 143 144 if (db_more(&nl) < 0) 145 return; 146 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 147 for (np = 0; np < 32; ++np) { 148 TAILQ_FOREACH(td, &gd->gd_tdrunq[np], td_threadq) { 149 if (db_more(&nl) < 0) 150 return; 151 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 152 np, td, 153 (td->td_proc ? td->td_proc->p_pid : -1), 154 td->td_flags, 155 td->td_pri & TDPRI_MASK, 156 td->td_pri / TDPRI_CRIT, 157 #ifdef SMP 158 td->td_mpcount, 159 #else 160 0, 161 #endif 162 td->td_sp, 163 td->td_wmesg ? td->td_wmesg : "-", 164 td->td_proc ? td->td_proc->p_comm : td->td_comm); 165 if (td->td_preempted) 166 db_printf(" PREEMPTING THREAD %p\n", td->td_preempted); 167 db_dump_td_tokens(td); 168 } 169 } 170 if (db_more(&nl) < 0) 171 return; 172 db_printf("\n"); 173 if (db_more(&nl) < 0) 174 return; 175 db_printf(" tdq thread pid flags pri/cs/mp sp wmesg comm\n"); 176 TAILQ_FOREACH(td, &gd->gd_tdallq, td_allq) { 177 if (db_more(&nl) < 0) 178 return; 179 db_printf(" %3d %p %3d %08x %2d/%02d/%02d %p %8.8s %s\n", 180 np, td, 181 (td->td_proc ? td->td_proc->p_pid : -1), 182 td->td_flags, 183 td->td_pri & TDPRI_MASK, 184 td->td_pri / TDPRI_CRIT, 185 #ifdef SMP 186 td->td_mpcount, 187 #else 188 0, 189 #endif 190 td->td_sp, 191 td->td_wmesg ? td->td_wmesg : "-", 192 td->td_proc ? td->td_proc->p_comm : td->td_comm); 193 db_dump_td_tokens(td); 194 } 195 } 196 if (db_more(&nl) < 0) 197 return; 198 db_printf("CURCPU %d CURTHREAD %p (%d) USCHEDCP %p (%d) UPRI %d\n", 199 mycpu->gd_cpuid, 200 curthread, 201 (curthread->td_proc ? curthread->td_proc->p_pid : -1), 202 mycpu->gd_uschedcp, 203 (mycpu->gd_uschedcp ? mycpu->gd_uschedcp->p_pid : -1), 204 mycpu->gd_upri); 205 db_dump_td_tokens(curthread); 206 } 207 208 static void 209 db_dump_td_tokens(thread_t td) 210 { 211 lwkt_tokref_t ref; 212 lwkt_token_t tok; 213 214 if (td->td_toks == NULL) 215 return; 216 db_printf(" TOKENS:"); 217 for (ref = td->td_toks; ref; ref = ref->tr_next) { 218 tok = ref->tr_tok; 219 220 db_printf(" %p[tok=%p", ref, ref->tr_tok); 221 if (td->td_gd == tok->t_cpu) 222 db_printf(",held"); 223 if (ref->tr_magic == LWKT_TOKREF_MAGIC1) 224 ; 225 else if (ref->tr_magic == LWKT_TOKREF_MAGIC2) 226 db_printf(",wait"); 227 else 228 db_printf(",badmagic"); 229 db_printf("]"); 230 } 231 db_printf("\n"); 232 } 233 234