1 /* $NetBSD: lfs_debug.c,v 1.40 2013/01/22 09:39:17 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@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 1.40 2013/01/22 09:39:17 dholland Exp $"); 64 65 #ifdef DEBUG 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/namei.h> 70 #include <sys/vnode.h> 71 #include <sys/mount.h> 72 #include <sys/buf.h> 73 #include <sys/syslog.h> 74 #include <sys/proc.h> 75 76 #include <ufs/ufs/inode.h> 77 #include <ufs/lfs/lfs.h> 78 #include <ufs/lfs/lfs_extern.h> 79 80 int lfs_lognum; 81 struct lfs_log_entry lfs_log[LFS_LOGLENGTH]; 82 83 int 84 lfs_bwrite_log(struct buf *bp, const char *file, int line) 85 { 86 struct vop_bwrite_args a; 87 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 99 lfs_dumplog(void) 100 { 101 int i; 102 const char *cp; 103 104 for (i = lfs_lognum; i != (lfs_lognum - 1) % LFS_LOGLENGTH; 105 i = (i + 1) % LFS_LOGLENGTH) 106 if (lfs_log[i].file) { 107 /* Only print out basename, for readability */ 108 cp = lfs_log[i].file; 109 while(*cp) 110 ++cp; 111 while(*cp != '/' && cp > lfs_log[i].file) 112 --cp; 113 114 printf("lbn %" PRId64 " %s %lx %d, %d %s\n", 115 lfs_log[i].block, 116 lfs_log[i].op, 117 lfs_log[i].flags, 118 lfs_log[i].pid, 119 lfs_log[i].line, 120 cp); 121 } 122 } 123 124 void 125 lfs_dump_super(struct lfs *lfsp) 126 { 127 int i; 128 129 printf("%s%x\t%s%x\t%s%d\t%s%d\n", 130 "magic ", lfsp->lfs_magic, 131 "version ", lfsp->lfs_version, 132 "size ", lfsp->lfs_size, 133 "ssize ", lfsp->lfs_ssize); 134 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 135 "dsize ", lfsp->lfs_dsize, 136 "bsize ", lfsp->lfs_bsize, 137 "fsize ", lfsp->lfs_fsize, 138 "frag ", lfsp->lfs_frag); 139 140 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 141 "minfree ", lfsp->lfs_minfree, 142 "inopb ", lfsp->lfs_inopb, 143 "ifpb ", lfsp->lfs_ifpb, 144 "nindir ", lfsp->lfs_nindir); 145 146 printf("%s%d\t%s%d\t%s%d\t%s%d\n", 147 "nseg ", lfsp->lfs_nseg, 148 "nspf ", lfsp->lfs_nspf, 149 "cleansz ", lfsp->lfs_cleansz, 150 "segtabsz ", lfsp->lfs_segtabsz); 151 152 printf("%s%x\t%s%d\t%s%lx\t%s%d\n", 153 "segmask ", lfsp->lfs_segmask, 154 "segshift ", lfsp->lfs_segshift, 155 "bmask ", (unsigned long)lfsp->lfs_bmask, 156 "bshift ", lfsp->lfs_bshift); 157 158 printf("%s%lu\t%s%d\t%s%lx\t%s%u\n", 159 "ffmask ", (unsigned long)lfsp->lfs_ffmask, 160 "ffshift ", lfsp->lfs_ffshift, 161 "fbmask ", (unsigned long)lfsp->lfs_fbmask, 162 "fbshift ", lfsp->lfs_fbshift); 163 164 printf("%s%d\t%s%d\t%s%x\t%s%qx\n", 165 "sushift ", lfsp->lfs_sushift, 166 "fsbtodb ", lfsp->lfs_fsbtodb, 167 "cksum ", lfsp->lfs_cksum, 168 "maxfilesize ", (long long)lfsp->lfs_maxfilesize); 169 170 printf("Superblock disk addresses:"); 171 for (i = 0; i < LFS_MAXNUMSB; i++) 172 printf(" %x", lfsp->lfs_sboffs[i]); 173 printf("\n"); 174 175 printf("Checkpoint Info\n"); 176 printf("%s%d\t%s%x\t%s%d\n", 177 "freehd ", lfsp->lfs_freehd, 178 "idaddr ", lfsp->lfs_idaddr, 179 "ifile ", lfsp->lfs_ifile); 180 printf("%s%x\t%s%d\t%s%x\t%s%x\t%s%x\t%s%x\n", 181 "bfree ", lfsp->lfs_bfree, 182 "nfiles ", lfsp->lfs_nfiles, 183 "lastseg ", lfsp->lfs_lastseg, 184 "nextseg ", lfsp->lfs_nextseg, 185 "curseg ", lfsp->lfs_curseg, 186 "offset ", lfsp->lfs_offset); 187 printf("tstamp %llx\n", (long long)lfsp->lfs_tstamp); 188 } 189 190 void 191 lfs_dump_dinode(struct ufs1_dinode *dip) 192 { 193 int i; 194 195 printf("%s%u\t%s%d\t%s%u\t%s%u\t%s%qu\t%s%d\n", 196 "mode ", dip->di_mode, 197 "nlink ", dip->di_nlink, 198 "uid ", dip->di_uid, 199 "gid ", dip->di_gid, 200 "size ", (long long)dip->di_size, 201 "blocks ", dip->di_blocks); 202 printf("inum %d\n", dip->di_inumber); 203 printf("Direct Addresses\n"); 204 for (i = 0; i < UFS_NDADDR; i++) { 205 printf("\t%x", dip->di_db[i]); 206 if ((i % 6) == 5) 207 printf("\n"); 208 } 209 for (i = 0; i < UFS_NIADDR; i++) 210 printf("\t%x", dip->di_ib[i]); 211 printf("\n"); 212 } 213 214 void 215 lfs_check_segsum(struct lfs *fs, struct segment *sp, char *file, int line) 216 { 217 int actual; 218 #if 0 219 static int offset; 220 #endif 221 222 if ((actual = 1) == 1) 223 return; /* XXXX not checking this anymore, really */ 224 225 if (sp->sum_bytes_left >= FINFOSIZE 226 && sp->fip->fi_nblocks > 512) { 227 printf("%s:%d: fi_nblocks = %d\n",file,line,sp->fip->fi_nblocks); 228 #ifdef DDB 229 Debugger(); 230 #endif 231 } 232 233 if (sp->sum_bytes_left > 484) { 234 printf("%s:%d: bad value (%d = -%d) for sum_bytes_left\n", 235 file, line, sp->sum_bytes_left, fs->lfs_sumsize-sp->sum_bytes_left); 236 panic("too many bytes"); 237 } 238 239 actual = fs->lfs_sumsize 240 /* amount taken up by FINFOs */ 241 - ((char *)&(sp->fip->fi_blocks[sp->fip->fi_nblocks]) - (char *)(sp->segsum)) 242 /* amount taken up by inode blocks */ 243 - sizeof(int32_t)*((sp->ninodes+INOPB(fs)-1) / INOPB(fs)); 244 #if 0 245 if (actual - sp->sum_bytes_left < offset) 246 { 247 printf("%s:%d: offset changed %d -> %d\n", file, line, 248 offset, actual-sp->sum_bytes_left); 249 offset = actual - sp->sum_bytes_left; 250 /* panic("byte mismatch"); */ 251 } 252 #endif 253 #if 0 254 if (actual != sp->sum_bytes_left) 255 printf("%s:%d: warning: segsum miscalc at %d (-%d => %d)\n", 256 file, line, sp->sum_bytes_left, 257 fs->lfs_sumsize-sp->sum_bytes_left, 258 actual); 259 #endif 260 if (sp->sum_bytes_left > 0 261 && ((char *)(sp->segsum))[fs->lfs_sumsize 262 - sizeof(int32_t) * ((sp->ninodes+INOPB(fs)-1) / INOPB(fs)) 263 - sp->sum_bytes_left] != '\0') { 264 printf("%s:%d: warning: segsum overwrite at %d (-%d => %d)\n", 265 file, line, sp->sum_bytes_left, 266 fs->lfs_sumsize-sp->sum_bytes_left, 267 actual); 268 #ifdef DDB 269 Debugger(); 270 #endif 271 } 272 } 273 274 void 275 lfs_check_bpp(struct lfs *fs, struct segment *sp, char *file, int line) 276 { 277 daddr_t blkno; 278 struct buf **bpp; 279 struct vnode *devvp; 280 281 devvp = VTOI(fs->lfs_ivnode)->i_devvp; 282 blkno = (*(sp->bpp))->b_blkno; 283 for (bpp = sp->bpp; bpp < sp->cbpp; bpp++) { 284 if ((*bpp)->b_blkno != blkno) { 285 if ((*bpp)->b_vp == devvp) { 286 printf("Oops, would misplace raw block " 287 "0x%" PRIx64 " at 0x%" PRIx64 "\n", 288 (*bpp)->b_blkno, 289 blkno); 290 } else { 291 printf("%s:%d: misplace ino %llu lbn %" PRId64 292 " at 0x%" PRIx64 " instead of " 293 "0x%" PRIx64 "\n", 294 file, line, 295 (unsigned long long) 296 VTOI((*bpp)->b_vp)->i_number, 297 (*bpp)->b_lblkno, 298 blkno, 299 (*bpp)->b_blkno); 300 } 301 } 302 blkno += fsbtodb(fs, btofsb(fs, (*bpp)->b_bcount)); 303 } 304 } 305 306 int lfs_debug_log_subsys[DLOG_MAX]; 307 308 /* 309 * Log events from various debugging areas of LFS, depending on what 310 * the user has enabled. 311 */ 312 void 313 lfs_debug_log(int subsys, const char *fmt, ...) 314 { 315 va_list ap; 316 317 /* If not debugging this subsys, exit */ 318 if (lfs_debug_log_subsys[subsys] == 0) 319 return; 320 321 va_start(ap, fmt); 322 vlog(LOG_DEBUG, fmt, ap); 323 va_end(ap); 324 } 325 #endif /* DEBUG */ 326