lfs_debug.c revision 1.34
1 /* $NetBSD: lfs_debug.c,v 1.34 2007/07/22 03:40:59 christos 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 /* 39 * Copyright (c) 1991, 1993 40 * The Regents of the University of California. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 * @(#)lfs_debug.c 8.1 (Berkeley) 6/11/93 67 */ 68 69 #ifdef DEBUG 70 71 #include <machine/stdarg.h> 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: lfs_debug.c,v 1.34 2007/07/22 03:40:59 christos Exp $"); 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/namei.h> 78 #include <sys/vnode.h> 79 #include <sys/mount.h> 80 #include <sys/buf.h> 81 #include <sys/syslog.h> 82 #include <sys/proc.h> 83 84 #include <ufs/ufs/inode.h> 85 #include <ufs/lfs/lfs.h> 86 #include <ufs/lfs/lfs_extern.h> 87 88 int lfs_lognum; 89 struct lfs_log_entry lfs_log[LFS_LOGLENGTH]; 90 91 int lfs_bwrite_log(struct buf *bp, const char *file, int line) 92 { 93 struct vop_bwrite_args a; 94 a.a_desc = VDESC(vop_bwrite); 95 a.a_bp = bp; 96 97 if (!(bp->b_flags & (B_DELWRI | B_GATHERED))) { 98 LFS_ENTER_LOG("write", file, line, bp->b_lblkno, bp->b_flags, 99 curproc->p_pid); 100 } 101 return (VCALL(bp->b_vp, VOFFSET(vop_bwrite), &a)); 102 } 103 104 void lfs_dumplog(void) 105 { 106 int i; 107 const char *cp; 108 109 for (i = lfs_lognum; i != (lfs_lognum - 1) % LFS_LOGLENGTH; 110 i = (i + 1) % LFS_LOGLENGTH) 111 if (lfs_log[i].file) { 112 /* Only print out basename, for readability */ 113 cp = lfs_log[i].file; 114 while(*cp) 115 ++cp; 116 while(*cp != '/' && cp > lfs_log[i].file) 117 --cp; 118 119 printf("lbn %" PRId64 " %s %lx %d, %d %s\n", 120 lfs_log[i].block, 121 lfs_log[i].op, 122 lfs_log[i].flags, 123 lfs_log[i].pid, 124 lfs_log[i].line, 125 cp); 126 } 127 } 128 129 void 130 lfs_dump_super(struct lfs *lfsp) 131 { 132 int i; 133 134 printf("%s%x\t%s%x\t%s%d\t%s%d\n", 135 "magic ", lfsp->lfs_magic, 136 "version ", lfsp->lfs_version, 137 "size ", lfsp->lfs_size, 138 "ssize ", lfsp->lfs_ssize); 139 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 140 "dsize ", lfsp->lfs_dsize, 141 "bsize ", lfsp->lfs_bsize, 142 "fsize ", lfsp->lfs_fsize, 143 "frag ", lfsp->lfs_frag); 144 145 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 146 "minfree ", lfsp->lfs_minfree, 147 "inopb ", lfsp->lfs_inopb, 148 "ifpb ", lfsp->lfs_ifpb, 149 "nindir ", lfsp->lfs_nindir); 150 151 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 152 "nseg ", lfsp->lfs_nseg, 153 "nspf ", lfsp->lfs_nspf, 154 "cleansz ", lfsp->lfs_cleansz, 155 "segtabsz ", lfsp->lfs_segtabsz); 156 157 printf("%s%x\t%s%d\t%s%lx\t%s%d\n", 158 "segmask ", lfsp->lfs_segmask, 159 "segshift ", lfsp->lfs_segshift, 160 "bmask ", (unsigned long)lfsp->lfs_bmask, 161 "bshift ", lfsp->lfs_bshift); 162 163 printf("%s%lu\t%s%d\t%s%lx\t%s%u\n", 164 "ffmask ", (unsigned long)lfsp->lfs_ffmask, 165 "ffshift ", lfsp->lfs_ffshift, 166 "fbmask ", (unsigned long)lfsp->lfs_fbmask, 167 "fbshift ", lfsp->lfs_fbshift); 168 169 printf("%s%d\t%s%d\t%s%x\t%s%qx\n", 170 "sushift ", lfsp->lfs_sushift, 171 "fsbtodb ", lfsp->lfs_fsbtodb, 172 "cksum ", lfsp->lfs_cksum, 173 "maxfilesize ", (long long)lfsp->lfs_maxfilesize); 174 175 printf("Superblock disk addresses:"); 176 for (i = 0; i < LFS_MAXNUMSB; i++) 177 printf(" %x", lfsp->lfs_sboffs[i]); 178 printf("\n"); 179 180 printf("Checkpoint Info\n"); 181 printf("%s%d\t%s%x\t%s%d\n", 182 "freehd ", lfsp->lfs_freehd, 183 "idaddr ", lfsp->lfs_idaddr, 184 "ifile ", lfsp->lfs_ifile); 185 printf("%s%x\t%s%d\t%s%x\t%s%x\t%s%x\t%s%x\n", 186 "bfree ", lfsp->lfs_bfree, 187 "nfiles ", lfsp->lfs_nfiles, 188 "lastseg ", lfsp->lfs_lastseg, 189 "nextseg ", lfsp->lfs_nextseg, 190 "curseg ", lfsp->lfs_curseg, 191 "offset ", lfsp->lfs_offset); 192 printf("tstamp %llx\n", (long long)lfsp->lfs_tstamp); 193 } 194 195 void 196 lfs_dump_dinode(struct ufs1_dinode *dip) 197 { 198 int i; 199 200 printf("%s%u\t%s%d\t%s%u\t%s%u\t%s%qu\t%s%d\n", 201 "mode ", dip->di_mode, 202 "nlink ", dip->di_nlink, 203 "uid ", dip->di_uid, 204 "gid ", dip->di_gid, 205 "size ", (long long)dip->di_size, 206 "blocks ", dip->di_blocks); 207 printf("inum %d\n", dip->di_inumber); 208 printf("Direct Addresses\n"); 209 for (i = 0; i < NDADDR; i++) { 210 printf("\t%x", dip->di_db[i]); 211 if ((i % 6) == 5) 212 printf("\n"); 213 } 214 for (i = 0; i < NIADDR; i++) 215 printf("\t%x", dip->di_ib[i]); 216 printf("\n"); 217 } 218 219 void 220 lfs_check_segsum(struct lfs *fs, struct segment *sp, char *file, int line) 221 { 222 int actual; 223 #if 0 224 static int offset; 225 #endif 226 227 if ((actual = 1) == 1) 228 return; /* XXXX not checking this anymore, really */ 229 230 if (sp->sum_bytes_left >= FINFOSIZE 231 && sp->fip->fi_nblocks > 512) { 232 printf("%s:%d: fi_nblocks = %d\n",file,line,sp->fip->fi_nblocks); 233 #ifdef DDB 234 Debugger(); 235 #endif 236 } 237 238 if (sp->sum_bytes_left > 484) { 239 printf("%s:%d: bad value (%d = -%d) for sum_bytes_left\n", 240 file, line, sp->sum_bytes_left, fs->lfs_sumsize-sp->sum_bytes_left); 241 panic("too many bytes"); 242 } 243 244 actual = fs->lfs_sumsize 245 /* amount taken up by FINFOs */ 246 - ((char *)&(sp->fip->fi_blocks[sp->fip->fi_nblocks]) - (char *)(sp->segsum)) 247 /* amount taken up by inode blocks */ 248 - sizeof(int32_t)*((sp->ninodes+INOPB(fs)-1) / INOPB(fs)); 249 #if 0 250 if (actual - sp->sum_bytes_left < offset) 251 { 252 printf("%s:%d: offset changed %d -> %d\n", file, line, 253 offset, actual-sp->sum_bytes_left); 254 offset = actual - sp->sum_bytes_left; 255 /* panic("byte mismatch"); */ 256 } 257 #endif 258 #if 0 259 if (actual != sp->sum_bytes_left) 260 printf("%s:%d: warning: segsum miscalc at %d (-%d => %d)\n", 261 file, line, sp->sum_bytes_left, 262 fs->lfs_sumsize-sp->sum_bytes_left, 263 actual); 264 #endif 265 if (sp->sum_bytes_left > 0 266 && ((char *)(sp->segsum))[fs->lfs_sumsize 267 - sizeof(int32_t) * ((sp->ninodes+INOPB(fs)-1) / INOPB(fs)) 268 - sp->sum_bytes_left] != '\0') { 269 printf("%s:%d: warning: segsum overwrite at %d (-%d => %d)\n", 270 file, line, sp->sum_bytes_left, 271 fs->lfs_sumsize-sp->sum_bytes_left, 272 actual); 273 #ifdef DDB 274 Debugger(); 275 #endif 276 } 277 } 278 279 void 280 lfs_check_bpp(struct lfs *fs, struct segment *sp, char *file, int line) 281 { 282 daddr_t blkno; 283 struct buf **bpp; 284 struct vnode *devvp; 285 286 devvp = VTOI(fs->lfs_ivnode)->i_devvp; 287 blkno = (*(sp->bpp))->b_blkno; 288 for (bpp = sp->bpp; bpp < sp->cbpp; bpp++) { 289 if ((*bpp)->b_blkno != blkno) { 290 if ((*bpp)->b_vp == devvp) { 291 printf("Oops, would misplace raw block " 292 "0x%" PRIx64 " at 0x%" PRIx64 "\n", 293 (*bpp)->b_blkno, 294 blkno); 295 } else { 296 printf("%s:%d: misplace ino %llu lbn %" PRId64 297 " at 0x%" PRIx64 " instead of " 298 "0x%" PRIx64 "\n", 299 file, line, 300 (unsigned long long) 301 VTOI((*bpp)->b_vp)->i_number, 302 (*bpp)->b_lblkno, 303 blkno, 304 (*bpp)->b_blkno); 305 } 306 } 307 blkno += fsbtodb(fs, btofsb(fs, (*bpp)->b_bcount)); 308 } 309 } 310 311 int lfs_debug_log_subsys[DLOG_MAX]; 312 313 /* 314 * Log events from various debugging areas of LFS, depending on what 315 * the user has enabled. 316 */ 317 void 318 lfs_debug_log(int subsys, const char *fmt, ...) 319 { 320 va_list ap; 321 322 /* If not debugging this subsys, exit */ 323 if (lfs_debug_log_subsys[subsys] == 0) 324 return; 325 326 va_start(ap, fmt); 327 vlog(LOG_DEBUG, fmt, ap); 328 va_end(ap); 329 } 330 #endif /* DEBUG */ 331
Indexes created Tue Sep 23 14:10:03 GMT 2025