| 1 | /* $NetBSD: lfs_debug.c,v 1.54 2015/09/01 06:12:04 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 1.54 2015/09/01 06:12:04 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/lfs/ulfs_inode.h> |
| 77 | #include <ufs/lfs/lfs.h> |
| 78 | #include <ufs/lfs/lfs_accessors.h> |
| 79 | #include <ufs/lfs/lfs_extern.h> |
| 80 | |
| 81 | int lfs_lognum; |
| 82 | struct lfs_log_entry lfs_log[LFS_LOGLENGTH]; |
| 83 | |
| 84 | int |
| 85 | lfs_bwrite_log(struct buf *bp, const char *file, int line) |
| 86 | { |
| 87 | struct vop_bwrite_args a; |
| 88 | |
| 89 | a.a_desc = VDESC(vop_bwrite); |
| 90 | a.a_bp = bp; |
| 91 | |
| 92 | if (!(bp->b_flags & B_GATHERED) && !(bp->b_oflags & BO_DELWRI)) { |
| 93 | LFS_ENTER_LOG("write" , file, line, bp->b_lblkno, bp->b_flags, |
| 94 | curproc->p_pid); |
| 95 | } |
| 96 | return (VCALL(bp->b_vp, VOFFSET(vop_bwrite), &a)); |
| 97 | } |
| 98 | |
| 99 | void |
| 100 | lfs_dumplog(void) |
| 101 | { |
| 102 | int i; |
| 103 | const char *cp; |
| 104 | |
| 105 | for (i = lfs_lognum; i != (lfs_lognum - 1) % LFS_LOGLENGTH; |
| 106 | i = (i + 1) % LFS_LOGLENGTH) |
| 107 | if (lfs_log[i].file) { |
| 108 | /* Only print out basename, for readability */ |
| 109 | cp = lfs_log[i].file; |
| 110 | while(*cp) |
| 111 | ++cp; |
| 112 | while(*cp != '/' && cp > lfs_log[i].file) |
| 113 | --cp; |
| 114 | |
| 115 | printf("lbn %" PRId64 " %s %lx %d, %d %s\n" , |
| 116 | lfs_log[i].block, |
| 117 | lfs_log[i].op, |
| 118 | lfs_log[i].flags, |
| 119 | lfs_log[i].pid, |
| 120 | lfs_log[i].line, |
| 121 | cp); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | void |
| 126 | lfs_dump_super(struct lfs *lfsp) |
| 127 | { |
| 128 | int i; |
| 129 | |
| 130 | printf("%s%x\t%s%x\t%s%ju\t%s%d\n" , |
| 131 | "magic " , lfsp->lfs_is64 ? |
| 132 | lfsp->lfs_dlfs_u.u_64.dlfs_magic : |
| 133 | lfsp->lfs_dlfs_u.u_32.dlfs_magic, |
| 134 | "version " , lfs_sb_getversion(lfsp), |
| 135 | "size " , (uintmax_t)lfs_sb_getsize(lfsp), |
| 136 | "ssize " , lfs_sb_getssize(lfsp)); |
| 137 | printf("%s%ju\t%s%d\t%s%d\t%s%d\n" , |
| 138 | "dsize " , (uintmax_t)lfs_sb_getdsize(lfsp), |
| 139 | "bsize " , lfs_sb_getbsize(lfsp), |
| 140 | "fsize " , lfs_sb_getfsize(lfsp), |
| 141 | "frag " , lfs_sb_getfrag(lfsp)); |
| 142 | |
| 143 | printf("%s%d\t%s%d\t%s%d\t%s%d\n" , |
| 144 | "minfree " , lfs_sb_getminfree(lfsp), |
| 145 | "inopb " , lfs_sb_getinopb(lfsp), |
| 146 | "ifpb " , lfs_sb_getifpb(lfsp), |
| 147 | "nindir " , lfs_sb_getnindir(lfsp)); |
| 148 | |
| 149 | printf("%s%d\t%s%d\t%s%d\t%s%d\n" , |
| 150 | "nseg " , lfs_sb_getnseg(lfsp), |
| 151 | "nspf " , lfs_sb_getnspf(lfsp), |
| 152 | "cleansz " , lfs_sb_getcleansz(lfsp), |
| 153 | "segtabsz " , lfs_sb_getsegtabsz(lfsp)); |
| 154 | |
| 155 | printf("%s%x\t%s%d\t%s%lx\t%s%d\n" , |
| 156 | "segmask " , lfs_sb_getsegmask(lfsp), |
| 157 | "segshift " , lfs_sb_getsegshift(lfsp), |
| 158 | "bmask " , (unsigned long)lfs_sb_getbmask(lfsp), |
| 159 | "bshift " , lfs_sb_getbshift(lfsp)); |
| 160 | |
| 161 | printf("%s%lu\t%s%d\t%s%lx\t%s%u\n" , |
| 162 | "ffmask " , (unsigned long)lfs_sb_getffmask(lfsp), |
| 163 | "ffshift " , lfs_sb_getffshift(lfsp), |
| 164 | "fbmask " , (unsigned long)lfs_sb_getfbmask(lfsp), |
| 165 | "fbshift " , lfs_sb_getfbshift(lfsp)); |
| 166 | |
| 167 | printf("%s%d\t%s%d\t%s%x\t%s%jx\n" , |
| 168 | "sushift " , lfs_sb_getsushift(lfsp), |
| 169 | "fsbtodb " , lfs_sb_getfsbtodb(lfsp), |
| 170 | "cksum " , lfs_sb_getcksum(lfsp), |
| 171 | "maxfilesize " , (uintmax_t)lfs_sb_getmaxfilesize(lfsp)); |
| 172 | |
| 173 | printf("Superblock disk addresses:" ); |
| 174 | for (i = 0; i < LFS_MAXNUMSB; i++) |
| 175 | printf(" %jx" , (intmax_t)lfs_sb_getsboff(lfsp, i)); |
| 176 | printf("\n" ); |
| 177 | |
| 178 | printf("Checkpoint Info\n" ); |
| 179 | printf("%s%ju\t%s%jx\n" , |
| 180 | "freehd " , (uintmax_t)lfs_sb_getfreehd(lfsp), |
| 181 | "idaddr " , (intmax_t)lfs_sb_getidaddr(lfsp)); |
| 182 | printf("%s%jx\t%s%ju\t%s%jx\t%s%jx\t%s%jx\t%s%jx\n" , |
| 183 | "bfree " , (intmax_t)lfs_sb_getbfree(lfsp), |
| 184 | "nfiles " , (uintmax_t)lfs_sb_getnfiles(lfsp), |
| 185 | "lastseg " , (intmax_t)lfs_sb_getlastseg(lfsp), |
| 186 | "nextseg " , (intmax_t)lfs_sb_getnextseg(lfsp), |
| 187 | "curseg " , (intmax_t)lfs_sb_getcurseg(lfsp), |
| 188 | "offset " , (intmax_t)lfs_sb_getoffset(lfsp)); |
| 189 | printf("tstamp %llx\n" , (long long)lfs_sb_gettstamp(lfsp)); |
| 190 | |
| 191 | if (!lfsp->lfs_is64) { |
| 192 | printf("32-bit only derived or constant fields\n" ); |
| 193 | printf("%s%u\n" , |
| 194 | "ifile " , lfs_sb_getifile(lfsp)); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | void |
| 199 | lfs_dump_dinode(struct lfs *fs, union lfs_dinode *dip) |
| 200 | { |
| 201 | int i; |
| 202 | |
| 203 | printf("%s%u\t%s%d\t%s%u\t%s%u\t%s%ju\t%s%ju\n" , |
| 204 | "mode " , lfs_dino_getmode(fs, dip), |
| 205 | "nlink " , lfs_dino_getnlink(fs, dip), |
| 206 | "uid " , lfs_dino_getuid(fs, dip), |
| 207 | "gid " , lfs_dino_getgid(fs, dip), |
| 208 | "size " , (uintmax_t)lfs_dino_getsize(fs, dip), |
| 209 | "blocks " , (uintmax_t)lfs_dino_getblocks(fs, dip)); |
| 210 | printf("inum %ju\n" , (uintmax_t)lfs_dino_getinumber(fs, dip)); |
| 211 | printf("Direct Addresses\n" ); |
| 212 | for (i = 0; i < ULFS_NDADDR; i++) { |
| 213 | printf("\t%jx" , (intmax_t)lfs_dino_getdb(fs, dip, i)); |
| 214 | if ((i % 6) == 5) |
| 215 | printf("\n" ); |
| 216 | } |
| 217 | for (i = 0; i < ULFS_NIADDR; i++) |
| 218 | printf("\t%jx" , (intmax_t)lfs_dino_getib(fs, dip, i)); |
| 219 | printf("\n" ); |
| 220 | } |
| 221 | |
| 222 | void |
| 223 | lfs_check_segsum(struct lfs *fs, struct segment *sp, char *file, int line) |
| 224 | { |
| 225 | int actual; |
| 226 | #if 0 |
| 227 | static int offset; |
| 228 | #endif |
| 229 | |
| 230 | if ((actual = 1) == 1) |
| 231 | return; /* XXXX not checking this anymore, really */ |
| 232 | |
| 233 | if (sp->sum_bytes_left >= FINFOSIZE(fs) |
| 234 | && lfs_fi_getnblocks(fs, sp->fip) > 512) { |
| 235 | printf("%s:%d: fi_nblocks = %d\n" , file, line, |
| 236 | lfs_fi_getnblocks(fs, sp->fip)); |
| 237 | #ifdef DDB |
| 238 | Debugger(); |
| 239 | #endif |
| 240 | } |
| 241 | |
| 242 | if (sp->sum_bytes_left > 484) { |
| 243 | printf("%s:%d: bad value (%d = -%d) for sum_bytes_left\n" , |
| 244 | file, line, sp->sum_bytes_left, lfs_sb_getsumsize(fs)-sp->sum_bytes_left); |
| 245 | panic("too many bytes" ); |
| 246 | } |
| 247 | |
| 248 | actual = lfs_sb_getsumsize(fs) |
| 249 | /* amount taken up by FINFOs */ |
| 250 | - ((char *)NEXT_FINFO(fs, sp->fip) - (char *)(sp->segsum)) |
| 251 | /* amount taken up by inode blocks */ |
| 252 | /* XXX should this be INUMSIZE or BLKPTRSIZE? */ |
| 253 | - LFS_INUMSIZE(fs)*((sp->ninodes+LFS_INOPB(fs)-1) / LFS_INOPB(fs)); |
| 254 | #if 0 |
| 255 | if (actual - sp->sum_bytes_left < offset) |
| 256 | { |
| 257 | printf("%s:%d: offset changed %d -> %d\n" , file, line, |
| 258 | offset, actual-sp->sum_bytes_left); |
| 259 | offset = actual - sp->sum_bytes_left; |
| 260 | /* panic("byte mismatch"); */ |
| 261 | } |
| 262 | #endif |
| 263 | #if 0 |
| 264 | if (actual != sp->sum_bytes_left) |
| 265 | printf("%s:%d: warning: segsum miscalc at %d (-%d => %d)\n" , |
| 266 | file, line, sp->sum_bytes_left, |
| 267 | lfs_sb_getsumsize(fs)-sp->sum_bytes_left, |
| 268 | actual); |
| 269 | #endif |
| 270 | if (sp->sum_bytes_left > 0 |
| 271 | && ((char *)(sp->segsum))[lfs_sb_getsumsize(fs) |
| 272 | - sizeof(int32_t) * ((sp->ninodes+LFS_INOPB(fs)-1) / LFS_INOPB(fs)) |
| 273 | - sp->sum_bytes_left] != '\0') { |
| 274 | printf("%s:%d: warning: segsum overwrite at %d (-%d => %d)\n" , |
| 275 | file, line, sp->sum_bytes_left, |
| 276 | lfs_sb_getsumsize(fs)-sp->sum_bytes_left, |
| 277 | actual); |
| 278 | #ifdef DDB |
| 279 | Debugger(); |
| 280 | #endif |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | void |
| 285 | lfs_check_bpp(struct lfs *fs, struct segment *sp, char *file, int line) |
| 286 | { |
| 287 | daddr_t blkno; |
| 288 | struct buf **bpp; |
| 289 | struct vnode *devvp; |
| 290 | |
| 291 | devvp = VTOI(fs->lfs_ivnode)->i_devvp; |
| 292 | blkno = (*(sp->bpp))->b_blkno; |
| 293 | for (bpp = sp->bpp; bpp < sp->cbpp; bpp++) { |
| 294 | if ((*bpp)->b_blkno != blkno) { |
| 295 | if ((*bpp)->b_vp == devvp) { |
| 296 | printf("Oops, would misplace raw block " |
| 297 | "0x%" PRIx64 " at 0x%" PRIx64 "\n" , |
| 298 | (*bpp)->b_blkno, |
| 299 | blkno); |
| 300 | } else { |
| 301 | printf("%s:%d: misplace ino %llu lbn %" PRId64 |
| 302 | " at 0x%" PRIx64 " instead of " |
| 303 | "0x%" PRIx64 "\n" , |
| 304 | file, line, |
| 305 | (unsigned long long) |
| 306 | VTOI((*bpp)->b_vp)->i_number, |
| 307 | (*bpp)->b_lblkno, |
| 308 | blkno, |
| 309 | (*bpp)->b_blkno); |
| 310 | } |
| 311 | } |
| 312 | blkno += LFS_FSBTODB(fs, lfs_btofsb(fs, (*bpp)->b_bcount)); |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | int lfs_debug_log_subsys[DLOG_MAX]; |
| 317 | |
| 318 | /* |
| 319 | * Log events from various debugging areas of LFS, depending on what |
| 320 | * the user has enabled. |
| 321 | */ |
| 322 | void |
| 323 | lfs_debug_log(int subsys, const char *fmt, ...) |
| 324 | { |
| 325 | va_list ap; |
| 326 | |
| 327 | /* If not debugging this subsys, exit */ |
| 328 | if (lfs_debug_log_subsys[subsys] == 0) |
| 329 | return; |
| 330 | |
| 331 | va_start(ap, fmt); |
| 332 | vlog(LOG_DEBUG, fmt, ap); |
| 333 | va_end(ap); |
| 334 | } |
| 335 | #endif /* DEBUG */ |
| 336 | |