lfs_debug.c revision 1.38
1 /* $NetBSD: lfs_debug.c,v 1.38 2009/07/19 04:16:23 dholland Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Konrad E. Schroder <perseant (at) hhhh.org>. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 /* 32 * Copyright (c) 1991, 1993 33 * The Regents of the University of California. All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 1. Redistributions of source code must retain the above copyright 39 * notice, this list of conditions and the following disclaimer. 40 * 2. Redistributions in binary form must reproduce the above copyright 41 * notice, this list of conditions and the following disclaimer in the 42 * documentation and/or other materials provided with the distribution. 43 * 3. Neither the name of the University nor the names of its contributors 44 * may be used to endorse or promote products derived from this software 45 * without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 51 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 * 59 * @(#)lfs_debug.c 8.1 (Berkeley) 6/11/93 60 */ 61 62 #include <sys/cdefs.h> 63 __KERNEL_RCSID(0, "$NetBSD: lfs_debug.c,v 1.38 2009/07/19 04:16:23 dholland Exp $"); 64 65 #ifdef DEBUG 66 67 #include <machine/stdarg.h> 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/namei.h> 72 #include <sys/vnode.h> 73 #include <sys/mount.h> 74 #include <sys/buf.h> 75 #include <sys/syslog.h> 76 #include <sys/proc.h> 77 78 #include <ufs/ufs/inode.h> 79 #include <ufs/lfs/lfs.h> 80 #include <ufs/lfs/lfs_extern.h> 81 82 int lfs_lognum; 83 struct lfs_log_entry lfs_log[LFS_LOGLENGTH]; 84 85 int 86 lfs_bwrite_log(struct buf *bp, const char *file, int line) 87 { 88 struct vop_bwrite_args a; 89 90 a.a_desc = VDESC(vop_bwrite); 91 a.a_bp = bp; 92 93 if (!(bp->b_flags & B_GATHERED) && !(bp->b_oflags & BO_DELWRI)) { 94 LFS_ENTER_LOG("write", file, line, bp->b_lblkno, bp->b_flags, 95 curproc->p_pid); 96 } 97 return (VCALL(bp->b_vp, VOFFSET(vop_bwrite), &a)); 98 } 99 100 void 101 lfs_dumplog(void) 102 { 103 int i; 104 const char *cp; 105 106 for (i = lfs_lognum; i != (lfs_lognum - 1) % LFS_LOGLENGTH; 107 i = (i + 1) % LFS_LOGLENGTH) 108 if (lfs_log[i].file) { 109 /* Only print out basename, for readability */ 110 cp = lfs_log[i].file; 111 while(*cp) 112 ++cp; 113 while(*cp != '/' && cp > lfs_log[i].file) 114 --cp; 115 116 printf("lbn %" PRId64 " %s %lx %d, %d %s\n", 117 lfs_log[i].block, 118 lfs_log[i].op, 119 lfs_log[i].flags, 120 lfs_log[i].pid, 121 lfs_log[i].line, 122 cp); 123 } 124 } 125 126 void 127 lfs_dump_super(struct lfs *lfsp) 128 { 129 int i; 130 131 printf("%s%x\t%s%x\t%s%d\t%s%d\n", 132 "magic ", lfsp->lfs_magic, 133 "version ", lfsp->lfs_version, 134 "size ", lfsp->lfs_size, 135 "ssize ", lfsp->lfs_ssize); 136 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 137 "dsize ", lfsp->lfs_dsize, 138 "bsize ", lfsp->lfs_bsize, 139 "fsize ", lfsp->lfs_fsize, 140 "frag ", lfsp->lfs_frag); 141 142 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 143 "minfree ", lfsp->lfs_minfree, 144 "inopb ", lfsp->lfs_inopb, 145 "ifpb ", lfsp->lfs_ifpb, 146 "nindir ", lfsp->lfs_nindir); 147 148 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 149 "nseg ", lfsp->lfs_nseg, 150 "nspf ", lfsp->lfs_nspf, 151 "cleansz ", lfsp->lfs_cleansz, 152 "segtabsz ", lfsp->lfs_segtabsz); 153 154 printf("%s%x\t%s%d\t%s%lx\t%s%d\n", 155 "segmask ", lfsp->lfs_segmask, 156 "segshift ", lfsp->lfs_segshift, 157 "bmask ", (unsigned long)lfsp->lfs_bmask, 158 "bshift ", lfsp->lfs_bshift); 159 160 printf("%s%lu\t%s%d\t%s%lx\t%s%u\n", 161 "ffmask ", (unsigned long)lfsp->lfs_ffmask, 162 "ffshift ", lfsp->lfs_ffshift, 163 "fbmask ", (unsigned long)lfsp->lfs_fbmask, 164 "fbshift ", lfsp->lfs_fbshift); 165 166 printf("%s%d\t%s%d\t%s%x\t%s%qx\n", 167 "sushift ", lfsp->lfs_sushift, 168 "fsbtodb ", lfsp->lfs_fsbtodb, 169 "cksum ", lfsp->lfs_cksum, 170 "maxfilesize ", (long long)lfsp->lfs_maxfilesize); 171 172 printf("Superblock disk addresses:"); 173 for (i = 0; i < LFS_MAXNUMSB; i++) 174 printf(" %x", lfsp->lfs_sboffs[i]); 175 printf("\n"); 176 177 printf("Checkpoint Info\n"); 178 printf("%s%d\t%s%x\t%s%d\n", 179 "freehd ", lfsp->lfs_freehd, 180 "idaddr ", lfsp->lfs_idaddr, 181 "ifile ", lfsp->lfs_ifile); 182 printf("%s%x\t%s%d\t%s%x\t%s%x\t%s%x\t%s%x\n", 183 "bfree ", lfsp->lfs_bfree, 184 "nfiles ", lfsp->lfs_nfiles, 185 "lastseg ", lfsp->lfs_lastseg, 186 "nextseg ", lfsp->lfs_nextseg, 187 "curseg ", lfsp->lfs_curseg, 188 "offset ", lfsp->lfs_offset); 189 printf("tstamp %llx\n", (long long)lfsp->lfs_tstamp); 190 } 191 192 void 193 lfs_dump_dinode(struct ufs1_dinode *dip) 194 { 195 int i; 196 197 printf("%s%u\t%s%d\t%s%u\t%s%u\t%s%qu\t%s%d\n", 198 "mode ", dip->di_mode, 199 "nlink ", dip->di_nlink, 200 "uid ", dip->di_uid, 201 "gid ", dip->di_gid, 202 "size ", (long long)dip->di_size, 203 "blocks ", dip->di_blocks); 204 printf("inum %d\n", dip->di_inumber); 205 printf("Direct Addresses\n"); 206 for (i = 0; i < NDADDR; i++) { 207 printf("\t%x", dip->di_db[i]); 208 if ((i % 6) == 5) 209 printf("\n"); 210 } 211 for (i = 0; i < NIADDR; i++) 212 printf("\t%x", dip->di_ib[i]); 213 printf("\n"); 214 } 215 216 void 217 lfs_check_segsum(struct lfs *fs, struct segment *sp, char *file, int line) 218 { 219 int actual; 220 #if 0 221 static int offset; 222 #endif 223 224 if ((actual = 1) == 1) 225 return; /* XXXX not checking this anymore, really */ 226 227 if (sp->sum_bytes_left >= FINFOSIZE 228 && sp->fip->fi_nblocks > 512) { 229 printf("%s:%d: fi_nblocks = %d\n",file,line,sp->fip->fi_nblocks); 230 #ifdef DDB 231 Debugger(); 232 #endif 233 } 234 235 if (sp->sum_bytes_left > 484) { 236 printf("%s:%d: bad value (%d = -%d) for sum_bytes_left\n", 237 file, line, sp->sum_bytes_left, fs->lfs_sumsize-sp->sum_bytes_left); 238 panic("too many bytes"); 239 } 240 241 actual = fs->lfs_sumsize 242 /* amount taken up by FINFOs */ 243 - ((char *)&(sp->fip->fi_blocks[sp->fip->fi_nblocks]) - (char *)(sp->segsum)) 244 /* amount taken up by inode blocks */ 245 - sizeof(int32_t)*((sp->ninodes+INOPB(fs)-1) / INOPB(fs)); 246 #if 0 247 if (actual - sp->sum_bytes_left < offset) 248 { 249 printf("%s:%d: offset changed %d -> %d\n", file, line, 250 offset, actual-sp->sum_bytes_left); 251 offset = actual - sp->sum_bytes_left; 252 /* panic("byte mismatch"); */ 253 } 254 #endif 255 #if 0 256 if (actual != sp->sum_bytes_left) 257 printf("%s:%d: warning: segsum miscalc at %d (-%d => %d)\n", 258 file, line, sp->sum_bytes_left, 259 fs->lfs_sumsize-sp->sum_bytes_left, 260 actual); 261 #endif 262 if (sp->sum_bytes_left > 0 263 && ((char *)(sp->segsum))[fs->lfs_sumsize 264 - sizeof(int32_t) * ((sp->ninodes+INOPB(fs)-1) / INOPB(fs)) 265 - sp->sum_bytes_left] != '\0') { 266 printf("%s:%d: warning: segsum overwrite at %d (-%d => %d)\n", 267 file, line, sp->sum_bytes_left, 268 fs->lfs_sumsize-sp->sum_bytes_left, 269 actual); 270 #ifdef DDB 271 Debugger(); 272 #endif 273 } 274 } 275 276 void 277 lfs_check_bpp(struct lfs *fs, struct segment *sp, char *file, int line) 278 { 279 daddr_t blkno; 280 struct buf **bpp; 281 struct vnode *devvp; 282 283 devvp = VTOI(fs->lfs_ivnode)->i_devvp; 284 blkno = (*(sp->bpp))->b_blkno; 285 for (bpp = sp->bpp; bpp < sp->cbpp; bpp++) { 286 if ((*bpp)->b_blkno != blkno) { 287 if ((*bpp)->b_vp == devvp) { 288 printf("Oops, would misplace raw block " 289 "0x%" PRIx64 " at 0x%" PRIx64 "\n", 290 (*bpp)->b_blkno, 291 blkno); 292 } else { 293 printf("%s:%d: misplace ino %llu lbn %" PRId64 294 " at 0x%" PRIx64 " instead of " 295 "0x%" PRIx64 "\n", 296 file, line, 297 (unsigned long long) 298 VTOI((*bpp)->b_vp)->i_number, 299 (*bpp)->b_lblkno, 300 blkno, 301 (*bpp)->b_blkno); 302 } 303 } 304 blkno += fsbtodb(fs, btofsb(fs, (*bpp)->b_bcount)); 305 } 306 } 307 308 int lfs_debug_log_subsys[DLOG_MAX]; 309 310 /* 311 * Log events from various debugging areas of LFS, depending on what 312 * the user has enabled. 313 */ 314 void 315 lfs_debug_log(int subsys, const char *fmt, ...) 316 { 317 va_list ap; 318 319 /* If not debugging this subsys, exit */ 320 if (lfs_debug_log_subsys[subsys] == 0) 321 return; 322 323 va_start(ap, fmt); 324 vlog(LOG_DEBUG, fmt, ap); 325 va_end(ap); 326 } 327 #endif /* DEBUG */ 328
Indexes created Mon Sep 22 13:09:51 GMT 2025