lfs_debug.c revision 1.36.6.1
1 /* $NetBSD: lfs_debug.c,v 1.36.6.1 2008/06/02 13:24:36 mjf 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 1.36.6.1 2008/06/02 13:24:36 mjf 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 lfs_bwrite_log(struct buf *bp, const char *file, int line) 86 { 87 struct vop_bwrite_args a; 88 a.a_desc = VDESC(vop_bwrite); 89 a.a_bp = bp; 90 91 if (!(bp->b_flags & B_GATHERED) && !(bp->b_oflags & BO_DELWRI)) { 92 LFS_ENTER_LOG("write", file, line, bp->b_lblkno, bp->b_flags, 93 curproc->p_pid); 94 } 95 return (VCALL(bp->b_vp, VOFFSET(vop_bwrite), &a)); 96 } 97 98 void lfs_dumplog(void) 99 { 100 int i; 101 const char *cp; 102 103 for (i = lfs_lognum; i != (lfs_lognum - 1) % LFS_LOGLENGTH; 104 i = (i + 1) % LFS_LOGLENGTH) 105 if (lfs_log[i].file) { 106 /* Only print out basename, for readability */ 107 cp = lfs_log[i].file; 108 while(*cp) 109 ++cp; 110 while(*cp != '/' && cp > lfs_log[i].file) 111 --cp; 112 113 printf("lbn %" PRId64 " %s %lx %d, %d %s\n", 114 lfs_log[i].block, 115 lfs_log[i].op, 116 lfs_log[i].flags, 117 lfs_log[i].pid, 118 lfs_log[i].line, 119 cp); 120 } 121 } 122 123 void 124 lfs_dump_super(struct lfs *lfsp) 125 { 126 int i; 127 128 printf("%s%x\t%s%x\t%s%d\t%s%d\n", 129 "magic ", lfsp->lfs_magic, 130 "version ", lfsp->lfs_version, 131 "size ", lfsp->lfs_size, 132 "ssize ", lfsp->lfs_ssize); 133 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 134 "dsize ", lfsp->lfs_dsize, 135 "bsize ", lfsp->lfs_bsize, 136 "fsize ", lfsp->lfs_fsize, 137 "frag ", lfsp->lfs_frag); 138 139 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 140 "minfree ", lfsp->lfs_minfree, 141 "inopb ", lfsp->lfs_inopb, 142 "ifpb ", lfsp->lfs_ifpb, 143 "nindir ", lfsp->lfs_nindir); 144 145 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 146 "nseg ", lfsp->lfs_nseg, 147 "nspf ", lfsp->lfs_nspf, 148 "cleansz ", lfsp->lfs_cleansz, 149 "segtabsz ", lfsp->lfs_segtabsz); 150 151 printf("%s%x\t%s%d\t%s%lx\t%s%d\n", 152 "segmask ", lfsp->lfs_segmask, 153 "segshift ", lfsp->lfs_segshift, 154 "bmask ", (unsigned long)lfsp->lfs_bmask, 155 "bshift ", lfsp->lfs_bshift); 156 157 printf("%s%lu\t%s%d\t%s%lx\t%s%u\n", 158 "ffmask ", (unsigned long)lfsp->lfs_ffmask, 159 "ffshift ", lfsp->lfs_ffshift, 160 "fbmask ", (unsigned long)lfsp->lfs_fbmask, 161 "fbshift ", lfsp->lfs_fbshift); 162 163 printf("%s%d\t%s%d\t%s%x\t%s%qx\n", 164 "sushift ", lfsp->lfs_sushift, 165 "fsbtodb ", lfsp->lfs_fsbtodb, 166 "cksum ", lfsp->lfs_cksum, 167 "maxfilesize ", (long long)lfsp->lfs_maxfilesize); 168 169 printf("Superblock disk addresses:"); 170 for (i = 0; i < LFS_MAXNUMSB; i++) 171 printf(" %x", lfsp->lfs_sboffs[i]); 172 printf("\n"); 173 174 printf("Checkpoint Info\n"); 175 printf("%s%d\t%s%x\t%s%d\n", 176 "freehd ", lfsp->lfs_freehd, 177 "idaddr ", lfsp->lfs_idaddr, 178 "ifile ", lfsp->lfs_ifile); 179 printf("%s%x\t%s%d\t%s%x\t%s%x\t%s%x\t%s%x\n", 180 "bfree ", lfsp->lfs_bfree, 181 "nfiles ", lfsp->lfs_nfiles, 182 "lastseg ", lfsp->lfs_lastseg, 183 "nextseg ", lfsp->lfs_nextseg, 184 "curseg ", lfsp->lfs_curseg, 185 "offset ", lfsp->lfs_offset); 186 printf("tstamp %llx\n", (long long)lfsp->lfs_tstamp); 187 } 188 189 void 190 lfs_dump_dinode(struct ufs1_dinode *dip) 191 { 192 int i; 193 194 printf("%s%u\t%s%d\t%s%u\t%s%u\t%s%qu\t%s%d\n", 195 "mode ", dip->di_mode, 196 "nlink ", dip->di_nlink, 197 "uid ", dip->di_uid, 198 "gid ", dip->di_gid, 199 "size ", (long long)dip->di_size, 200 "blocks ", dip->di_blocks); 201 printf("inum %d\n", dip->di_inumber); 202 printf("Direct Addresses\n"); 203 for (i = 0; i < NDADDR; i++) { 204 printf("\t%x", dip->di_db[i]); 205 if ((i % 6) == 5) 206 printf("\n"); 207 } 208 for (i = 0; i < NIADDR; i++) 209 printf("\t%x", dip->di_ib[i]); 210 printf("\n"); 211 } 212 213 void 214 lfs_check_segsum(struct lfs *fs, struct segment *sp, char *file, int line) 215 { 216 int actual; 217 #if 0 218 static int offset; 219 #endif 220 221 if ((actual = 1) == 1) 222 return; /* XXXX not checking this anymore, really */ 223 224 if (sp->sum_bytes_left >= FINFOSIZE 225 && sp->fip->fi_nblocks > 512) { 226 printf("%s:%d: fi_nblocks = %d\n",file,line,sp->fip->fi_nblocks); 227 #ifdef DDB 228 Debugger(); 229 #endif 230 } 231 232 if (sp->sum_bytes_left > 484) { 233 printf("%s:%d: bad value (%d = -%d) for sum_bytes_left\n", 234 file, line, sp->sum_bytes_left, fs->lfs_sumsize-sp->sum_bytes_left); 235 panic("too many bytes"); 236 } 237 238 actual = fs->lfs_sumsize 239 /* amount taken up by FINFOs */ 240 - ((char *)&(sp->fip->fi_blocks[sp->fip->fi_nblocks]) - (char *)(sp->segsum)) 241 /* amount taken up by inode blocks */ 242 - sizeof(int32_t)*((sp->ninodes+INOPB(fs)-1) / INOPB(fs)); 243 #if 0 244 if (actual - sp->sum_bytes_left < offset) 245 { 246 printf("%s:%d: offset changed %d -> %d\n", file, line, 247 offset, actual-sp->sum_bytes_left); 248 offset = actual - sp->sum_bytes_left; 249 /* panic("byte mismatch"); */ 250 } 251 #endif 252 #if 0 253 if (actual != sp->sum_bytes_left) 254 printf("%s:%d: warning: segsum miscalc at %d (-%d => %d)\n", 255 file, line, sp->sum_bytes_left, 256 fs->lfs_sumsize-sp->sum_bytes_left, 257 actual); 258 #endif 259 if (sp->sum_bytes_left > 0 260 && ((char *)(sp->segsum))[fs->lfs_sumsize 261 - sizeof(int32_t) * ((sp->ninodes+INOPB(fs)-1) / INOPB(fs)) 262 - sp->sum_bytes_left] != '\0') { 263 printf("%s:%d: warning: segsum overwrite at %d (-%d => %d)\n", 264 file, line, sp->sum_bytes_left, 265 fs->lfs_sumsize-sp->sum_bytes_left, 266 actual); 267 #ifdef DDB 268 Debugger(); 269 #endif 270 } 271 } 272 273 void 274 lfs_check_bpp(struct lfs *fs, struct segment *sp, char *file, int line) 275 { 276 daddr_t blkno; 277 struct buf **bpp; 278 struct vnode *devvp; 279 280 devvp = VTOI(fs->lfs_ivnode)->i_devvp; 281 blkno = (*(sp->bpp))->b_blkno; 282 for (bpp = sp->bpp; bpp < sp->cbpp; bpp++) { 283 if ((*bpp)->b_blkno != blkno) { 284 if ((*bpp)->b_vp == devvp) { 285 printf("Oops, would misplace raw block " 286 "0x%" PRIx64 " at 0x%" PRIx64 "\n", 287 (*bpp)->b_blkno, 288 blkno); 289 } else { 290 printf("%s:%d: misplace ino %llu lbn %" PRId64 291 " at 0x%" PRIx64 " instead of " 292 "0x%" PRIx64 "\n", 293 file, line, 294 (unsigned long long) 295 VTOI((*bpp)->b_vp)->i_number, 296 (*bpp)->b_lblkno, 297 blkno, 298 (*bpp)->b_blkno); 299 } 300 } 301 blkno += fsbtodb(fs, btofsb(fs, (*bpp)->b_bcount)); 302 } 303 } 304 305 int lfs_debug_log_subsys[DLOG_MAX]; 306 307 /* 308 * Log events from various debugging areas of LFS, depending on what 309 * the user has enabled. 310 */ 311 void 312 lfs_debug_log(int subsys, const char *fmt, ...) 313 { 314 va_list ap; 315 316 /* If not debugging this subsys, exit */ 317 if (lfs_debug_log_subsys[subsys] == 0) 318 return; 319 320 va_start(ap, fmt); 321 vlog(LOG_DEBUG, fmt, ap); 322 va_end(ap); 323 } 324 #endif /* DEBUG */ 325
Indexes created Wed Oct 01 19:09:53 GMT 2025