git checkout 31d141e3a666269a3b6fcccddb0351caf7454240 Previous HEAD position was a3ccb6c... Merge 'lunn/v3.12-rc5-rafael-next-dove-cpufreq' into devel-hourly-2013102301 HEAD is now at 31d141e... Linux 3.12-rc6 ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:31d141e3a666269a3b6fcccddb0351caf7454240:bisect-mmotm 2013-10-24-05:24:24 31d141e3a666269a3b6fcccddb0351caf7454240 reuse /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/31d141e3a666269a3b6fcccddb0351caf7454240/vmlinuz-3.12.0-rc6-00140-g31d141e 2013-10-24-05:24:24 detecting boot state ...................... 1............... 2............................. 3... 5.............. 6... 7. 8 9 10. 12. 13. 14 15.. 16. 19 20.. 22... 23. 24.. 25... 26.. 27. 28.. 29 30. 33 36 37.. 39.. 41.... 43.. 44 46. 49 50.. 51 54. 56 58. 60 61 63 66 67 68 69. 71 73 74 75. 77 79 83 86 89 90 93 94 97 99 102 105 107 109 112 113. 115 119 124 126. 127 128 131 135 137 139. 141 144 145 146 147 152 153 155 156 158 159 160 164 169 172 176 177 182 186 189 193 197 202 206 207 211.. 220 223 228 229 232 238 241 244 246 249 252 255 256 257 258 259. 261 262 265. 269 270. 271. 272 273 274 275.. 276. 278...... 279............................................................................................................... 280 281.. 282. 283. 284 285..... 286. 287.................. 288 289.............. 290 292.. 293... 294.......... 295.. 296 SUCCESS bisect: good commit 31d141e3a666269a3b6fcccddb0351caf7454240 git bisect start a3ccb6c1ef2ff3c5e681b0a36ba43feb8a3fb401 31d141e3a666269a3b6fcccddb0351caf7454240 -- Previous HEAD position was 31d141e... Linux 3.12-rc6 HEAD is now at 805a6af... Linux 3.2 Bisecting: 709 revisions left to test after this (roughly 10 steps) [1734bf83a82c52ed2658fe1f07742eac321813d3] Merge 'ath6kl/ath-next' into devel-hourly-2013102301 git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:1734bf83a82c52ed2658fe1f07742eac321813d3:bisect-mmotm 2013-10-24-09:16:47 1734bf83a82c52ed2658fe1f07742eac321813d3 compiling 270 real 1711 user 164 sys 693.57% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-24-09:21:54 detecting boot state 3.12.0-rc6-00712-g1734bf8....................................................................................... 1..... 2... 3.......................... 5... 6......... 7.. 8.................. 9............. 10.................... 11..... 12........ 13 14 15....... 16..... 17. 18 19.. 20. 21... 22.. 23............. 24. 25.. 26 27. 29.. 32. 33... 35.. 37 38 39. 40. 41.. 43. 46 48 49 51.. 54 55.. 56. 57. 59 61 62 64 65 66.. 67. 68. 69. 70.. 72 73 74. 75. 77. 79. 80. 81.. 82. 83... 84.... 85.... 86........ 87.. 88. 89 90........ 91. 92 93... 94 95 97 98 99. 100.. 101. 102 103.... 104 106. 107. 108. 109. 110 111... 112 113 116 117 118. 119. 121 123 124 126 127 129..... 130 131 132... 133 134 136.. 137 138 140....... 142 143......... 144. 145... 146 148 149 150. 151..... 152. 153 154.. 155.. 156 157 158 159.... 160.. 161...... 163. 164. 165 166 167. 169 170.. 172 173..... 174... 175. 178 182 183 184... 185 187. 188..... 189 190. 191 192 193... 195 197 198. 201 202 205 206 209. 210.. 212. 213 214 215.. 216. 218 219 222 225. 226 227 228 229 230. 232. 233 235 238 239. 240 241 243 245 246. 247. 250. 251. 252 253.. 254. 257... 258....... 260 261.. 262... 264. 265 266.. 267. 268 269 270 271... 273 274.. 275.... 276....... 277.............. 278..... 279....... 280 281........... 282. 283 284............. 285 286. 287. 288..... 289........................... 290..... 291....... 292. 293.............................................................................................................................................................................................................................................................................................................add_to_run_queue 3 .................................................................................................................................................................................... 294............................... 295................................................................................................................................................................ 296 SUCCESS Bisecting: 382 revisions left to test after this (roughly 9 steps) [75f1457ee73528f0e61c80fb1c7976535c64bfce] Merge 'wfg/virtio-net-sleeping-fix' into devel-hourly-2013102301 running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:75f1457ee73528f0e61c80fb1c7976535c64bfce:bisect-mmotm 2013-10-24-21:29:50 75f1457ee73528f0e61c80fb1c7976535c64bfce compiling 270 real 1668 user 144 sys 670.53% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-24-21:35:00 detecting boot state 3.12.0-rc6-wl-01039-g75f1457...... 1. 2 3.......... 4 5...... 6.... 7. 8 12 15. 17. 18.......................... 19 20. 21 22.. 23. 24.... TEST FAILURE [ 670.951713] groups: 1 0 [ 670.951906] KVM setup async PF for cpu 1 [ 670.951913] kvm-stealtime: cpu 1, msr 1e40d200 [ 721.854517] updatedb.mlocat invoked oom-killer: gfp_mask=0x201da, order=0, oom_score_adj=0 [ 721.854536] updatedb.mlocat cpuset=/ mems_allowed=0 [ 721.854540] CPU: 0 PID: 3171 Comm: updatedb.mlocat Not tainted 3.12.0-rc6-wl-01039-g75f1457 #257 [ 721.854541] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 721.854545] 0000000000000000 ffff88001a03faa0 ffffffff81a345e5 ffff88001b1fc680 [ 721.854547] ffff88001a03fb40 ffffffff81a2dc9a ffffffff814fe845 ffff88001a03faf0 [ 721.854550] 0000000000000046 0000000000000206 ffffffff81fe3340 0000000000000001 [ 721.854550] Call Trace: [ 721.854557] [] dump_stack+0x54/0x74 [ 721.854561] [] dump_header+0x7f/0x28e [ 721.854565] [] ? ___ratelimit+0xf5/0x100 [ 721.854569] [] oom_kill_process+0x7a/0x37d [ 721.854573] [] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 721.854576] [] out_of_memory+0x449/0x462 [ 721.854578] [] __alloc_pages_nodemask+0x738/0x993 [ 721.854582] [] alloc_pages_current+0xfc/0x117 [ 721.854585] [] __page_cache_alloc+0x87/0x92 [ 721.854588] [] ? nfs_readdir_xdr_to_array+0x268/0x268 [ 721.854590] [] do_read_cache_page+0x47/0x14b [ 721.854593] [] read_cache_page_async+0x1c/0x1e [ 721.854595] [] read_cache_page+0xe/0x18 [ 721.854596] [] nfs_readdir+0x138/0x42b [ 721.854599] [] ? nfs3_xdr_dec_write3res+0xa0/0xa0 [ 721.854602] [] iterate_dir+0x65/0xa8 [ 721.854604] [] SyS_getdents+0x89/0xf1 [ 721.854605] [] ? fillonedir+0xdc/0xdc [ 721.854609] [] system_call_fastpath+0x16/0x1b [ 721.854610] Mem-Info: [ 721.854612] Node 0 DMA per-cpu: [ 721.854613] CPU 0: hi: 0, btch: 1 usd: 0 /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/75f1457ee73528f0e61c80fb1c7976535c64bfce/dmesg-nfsroot-waimea-5:20131025061122:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-wl-01039-g75f1457:257 13:1:12 all_good:bad:all_bad boots Bisecting: 163 revisions left to test after this (roughly 7 steps) [6b991c3763e15a0884095fc0c133980c5577e9c7] bnx2x: Prevent null pointer dereference on error flow running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:6b991c3763e15a0884095fc0c133980c5577e9c7:bisect-mmotm 2013-10-24-22:16:06 6b991c3763e15a0884095fc0c133980c5577e9c7 compiling 188 real 1720 user 154 sys 994.88% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-24-22:19:28 detecting boot state 3.12.0-rc3-00349-g6b991c3................ 1..... 2... 3 4 5 6........... 7. 8.. 9. 10 12 13 16... 17.. 20 22 23 24 26. 27... 28. 29. 30 34. 36.. 38 39 40... 42. 43. 44 45. 46. 49 50 51. 52. 53 57 59. 60 61 62 64.. 66.. 67. 68 69. 70... 73 75 76 77 79. 81 83. 84. 86. 89 91 92... 95 98. 100 101 102 104.. 105. 106. 107 109 110 112 113 116 117 119 120 123. 125 126 127 128. 130 131 132. 134 136 138 141 142 144. 146. 149. 150. 151 152. 154 155. 157 159 161 164 165 167. 169 172.. 177. 179. 180.. 181. 185 186.. 187 188 189 190. 192 193. 194 196 199 200 201 203 204. 207 208 210 211.. 212 214 215... 216 217 218 221 222. 227 228 230 233.. 234 237 238 239 240 241. 243 244 246. 247 251. 253 254 256 257 260. 262 263 266. 267.. 268 270 272. 273... 274 275........ 276.... 277. 278............... 280..... 281 282. 283..... 284 285... 286 287........ 288...... 289 290.... 292................................. 293. 294............. 295......................................................................................................................................................................................................... 296 SUCCESS Bisecting: 81 revisions left to test after this (roughly 6 steps) [95f4ad8f05ba7ecde62215163404d291dbc56d68] sysfs, kernfs: introduce kernfs_create_link() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:95f4ad8f05ba7ecde62215163404d291dbc56d68:bisect-mmotm 2013-10-25-03:29:43 95f4ad8f05ba7ecde62215163404d291dbc56d68 compiling 243 real 1725 user 156 sys 771.49% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-03:34:04 detecting boot state 3.12.0-rc6-00082-g95f4ad8............... 1.......................................................................................... 2. 3. 4.... 5 6...... 7........... 8.... 9 10... 12.......... 15 16................. 17.. 18 19 20.... 21 22. 23.... 24........ 25. 26.......... 27.. 28. 29.. 30...... 31............ 33..... 34.. 35... 36.... 37. 38..... 39 40. 41... 43 44.. 45.............. 46........ 47 48........................ 50.. 51 53...... 54. 55 56 58... 59 60. 64 65 66 67.. 68. 69. 70... 73. 74. 75. 76.. 78 82 83 84. 86. 88 90 93 97 99 100 101 102 104. 108 109 112. 113. 117 119 125 126 128 132 135 138 139 142 143. 146 147 148.. 150 152 153 154 156 157... 160 162... 168 170 172 174 178 181 184 186 187.. 190 191 196 197 199 201 202 206 207 208 209 210. 212.... 213... 214.. 215 216.. 217........ 219. 222 224 225 228 230.. 233 235 236 239 242 244 246 247 248 249. 250 251. 252... 253.. 255 256 257.. 258 259. 262 263 264 265. 267 268 270 271. 272 273 275 277 279.. 281.... 282 283 285. 287.. 288 289 291 292 293 294. 295....... 296 SUCCESS Bisecting: 40 revisions left to test after this (roughly 5 steps) [dc2364837ae4416a7646494cb672175339388e60] Merge 'ath6kl/master' into devel-hourly-2013102301 running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:dc2364837ae4416a7646494cb672175339388e60:bisect-mmotm 2013-10-25-08:14:40 dc2364837ae4416a7646494cb672175339388e60 compiling 209 real 1696 user 142 sys 877.18% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-08:18:26 detecting boot state 3.12.0-rc6-wl-00784-gdc23648........... 1...... 2......... 3....... 4.... 5. 6....... 8.. 9... 10........... 11.... 12.. 13 14 15. 16. 17 18. 19. 21. 22. 23.... 24 25.... 26.... 27 29..... 30.... 31 32.................. 34 35.. 36........................................ 37....................... 38.................................. 39.. 40. 41... 42...... 43... 44 45.... 47.. 48 49..... 50.. 51 53. 54.. 55. 56. 58. 59. 60.. 61... 62. 63 65 66... 67 68 69. 70 72. 73 74. 75. 76 77 80 83 86 87 89. 93 94. 96. 98 100 103 106 107 109 110 111 113. 115 116 119 120.. 123 124 126 127. 129 131 132 134. 135 137 138 140 141. 142 144 145 146 150 151 153 157 163 165 166 169 171 178 181 183 187 190 195 201 205 209 215 219 224 227 229 230 233 237 239 241 244 248 252 255 257 261 264 266 268 272 273 276 278 280 282 285 288 289 291.. 293 294 296 SUCCESS Bisecting: 20 revisions left to test after this (roughly 4 steps) [acd8b9fc6b4242bdf72fd2b5a1ac5140f69f2932] sysfs, kernfs: move internal decls to fs/kernfs/kernfs-internal.h running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:acd8b9fc6b4242bdf72fd2b5a1ac5140f69f2932:bisect-mmotm 2013-10-25-11:51:32 acd8b9fc6b4242bdf72fd2b5a1ac5140f69f2932 compiling 212 real 1746 user 152 sys 894.89% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-11:55:21 detecting boot state 3.12.0-rc6-00102-gacd8b9f............ 1 2........... 3.................................. TEST FAILURE [ 757.422086] [ BUG: bad unlock balance detected! ] [ 757.422087] 3.12.0-rc6-00102-gacd8b9f #261 Not tainted [ 757.422088] ------------------------------------- [ 757.422090] trinity-child0/3676 is trying to release lock (&of->mutex) at: [ 757.422096] [] mutex_unlock+0xe/0x10 [ 757.422096] but there are no more locks to release! [ 757.422097] [ 757.422097] other info that might help us debug this: [ 757.422098] 1 lock held by trinity-child0/3676: [ 757.422104] #0: (&p->lock){......}, at: [] seq_read+0x3c/0x34b [ 757.422104] [ 757.422104] stack backtrace: [ 757.422106] CPU: 0 PID: 3676 Comm: trinity-child0 Not tainted 3.12.0-rc6-00102-gacd8b9f #261 [ 757.422107] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 757.422110] 0000000000000000 ffff88000b577d28 ffffffff81a341b5 ffff88000bbb4680 [ 757.422112] ffff88000b577d50 ffffffff81119f09 ffff88000bbb4680 00000000ffffffff [ 757.422114] 0000000000000001 ffff88000b577dc0 ffffffff8111bc49 0000000000000002 [ 757.422115] Call Trace: [ 757.422118] [] dump_stack+0x54/0x74 [ 757.422123] [] print_unlock_imbalance_bug+0xe5/0xee [ 757.422125] [] lock_release_non_nested+0x160/0x29b [ 757.422129] [] ? local_clock+0x41/0x5a [ 757.422131] [] ? mutex_unlock+0xe/0x10 [ 757.422133] [] ? mutex_unlock+0xe/0x10 [ 757.422135] [] lock_release+0x1f8/0x1fb [ 757.422138] [] __mutex_unlock_slowpath+0xef/0x153 [ 757.422140] [] mutex_unlock+0xe/0x10 [ 757.422143] [] kernfs_seq_stop+0x46/0x4c [ 757.422146] [] seq_read+0x21f/0x34b [ 757.422148] [] kernfs_file_read+0x3d/0x126 [ 757.422188] [] vfs_read+0xa1/0x151 [ 757.422190] [] SyS_read+0x4c/0x83 [ 757.422194] [] system_call_fastpath+0x16/0x1b /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/acd8b9fc6b4242bdf72fd2b5a1ac5140f69f2932/dmesg-quantal-waimea-7:20131025202003:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-00102-gacd8b9f:261 3:1:1 all_good:bad:all_bad boots Bisecting: 9 revisions left to test after this (roughly 3 steps) [78676703fdf0f37ae33e890400a76fcd23b83739] sysfs, kernfs: move sysfs_open_file to include/linux/kernfs.h running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:78676703fdf0f37ae33e890400a76fcd23b83739:bisect-mmotm 2013-10-25-12:25:28 78676703fdf0f37ae33e890400a76fcd23b83739 compiling 180 real 1737 user 149 sys 1047.05% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-12:28:43 detecting boot state 3.12.0-rc6-00092-g7867670........................................................................................... 1. 2.... 3.... 4... 5 6... 7. 8. 10 12....... 13.. 14.... 15 16.................................... 17.. 18. TEST FAILURE [ 860.792452] [ BUG: bad unlock balance detected! ] [ 860.792454] 3.12.0-rc6-00092-g7867670 #262 Not tainted [ 860.792455] ------------------------------------- [ 860.792458] trinity-child0/3597 is trying to release lock (s_active) at: [ 860.792483] [] kernfs_seq_stop+0x19/0x25 [ 860.792484] but there are no more locks to release! [ 860.792489] [ 860.792489] other info that might help us debug this: [ 860.792491] 1 lock held by trinity-child0/3597: [ 860.792508] #0: (&p->lock){......}, at: [] seq_read+0x3c/0x34b [ 860.792508] [ 860.792508] stack backtrace: [ 860.792511] CPU: 0 PID: 3597 Comm: trinity-child0 Not tainted 3.12.0-rc6-00092-g7867670 #262 [ 860.792512] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 860.792516] 0000000000000000 ffff88000aba7d58 ffffffff81a34275 ffff88000008a340 [ 860.792518] ffff88000aba7d80 ffffffff81119f09 ffff88000008a340 00000000ffffffff [ 860.792520] 0000000000000001 ffff88000aba7df0 ffffffff8111bc49 ffff88000008a340 [ 860.792521] Call Trace: [ 860.792553] [] dump_stack+0x54/0x74 [ 860.792571] [] print_unlock_imbalance_bug+0xe5/0xee [ 860.792574] [] lock_release_non_nested+0x160/0x29b [ 860.792577] [] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 860.792579] [] ? kernfs_seq_stop+0x19/0x25 [ 860.792582] [] ? kernfs_seq_stop+0x19/0x25 [ 860.792584] [] lock_release+0x1f8/0x1fb [ 860.792587] [] sysfs_put_active+0x48/0x63 [ 860.792589] [] kernfs_seq_stop+0x19/0x25 [ 860.792591] [] seq_read+0x21f/0x34b [ 860.792593] [] kernfs_file_read+0x155/0x164 [ 860.792596] [] ? _raw_spin_unlock_irq+0x2c/0x45 [ 860.792602] [] vfs_read+0xa1/0x151 [ 860.792604] [] SyS_read+0x4c/0x83 [ 860.792612] [] system_call_fastpath+0x16/0x1b 21958 iterations. 21994 iterations. 23366 iterations. /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/78676703fdf0f37ae33e890400a76fcd23b83739/dmesg-quantal-bens-2:20131025135616:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-00092-g7867670:262 18:1:1 all_good:bad:all_bad boots Bisecting: 4 revisions left to test after this (roughly 2 steps) [2fc546abb938dac3bb72061b030d00e18896b336] sysfs, kernfs: prepare read path for kernfs running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:2fc546abb938dac3bb72061b030d00e18896b336:bisect-mmotm 2013-10-25-13:56:54 2fc546abb938dac3bb72061b030d00e18896b336 compiling 182 real 1694 user 149 sys 1011.11% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-14:00:10 detecting boot state 3.12.0-rc6-00087-g2fc546a.................................................................................... 1................ 4........... 5 6... 7 9. 10 11 12... 13................. 14.. 15................ 16................. 17................... TEST FAILURE [ 525.130374] [ BUG: bad unlock balance detected! ] [ 525.130376] 3.12.0-rc6-00087-g2fc546a #263 Not tainted [ 525.130376] ------------------------------------- [ 525.130378] trinity-child0/3570 is trying to release lock (s_active) at: [ 525.130384] [] kernfs_seq_stop+0x19/0x25 [ 525.130384] but there are no more locks to release! [ 525.130385] [ 525.130385] other info that might help us debug this: [ 525.130386] 1 lock held by trinity-child0/3570: [ 525.130392] #0: (&p->lock){......}, at: [] seq_read+0x3c/0x34b [ 525.130392] [ 525.130392] stack backtrace: [ 525.130394] CPU: 0 PID: 3570 Comm: trinity-child0 Not tainted 3.12.0-rc6-00087-g2fc546a #263 [ 525.130395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 525.130398] 0000000000000000 ffff88001b06dd58 ffffffff81a34275 ffff88001d440000 [ 525.130401] ffff88001b06dd80 ffffffff81119f09 ffff88001d440000 00000000ffffffff [ 525.130403] 0000000000000001 ffff88001b06ddf0 ffffffff8111bc49 ffff88001d440000 [ 525.130404] Call Trace: [ 525.130408] [] dump_stack+0x54/0x74 [ 525.130412] [] print_unlock_imbalance_bug+0xe5/0xee [ 525.130415] [] lock_release_non_nested+0x160/0x29b [ 525.130418] [] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 525.130420] [] ? kernfs_seq_stop+0x19/0x25 [ 525.130422] [] ? kernfs_seq_stop+0x19/0x25 [ 525.130424] [] lock_release+0x1f8/0x1fb [ 525.130427] [] sysfs_put_active+0x48/0x63 [ 525.130429] [] kernfs_seq_stop+0x19/0x25 [ 525.130431] [] seq_read+0x21f/0x34b [ 525.130434] [] kernfs_file_read+0x155/0x164 [ 525.130437] [] ? _raw_spin_unlock_irq+0x2c/0x45 [ 525.130441] [] vfs_read+0xa1/0x151 [ 525.130443] [] SyS_read+0x4c/0x83 [ 525.130446] [] system_call_fastpath+0x16/0x1b 26642 iterations. 27631 iterations. 29291 iterations. /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/2fc546abb938dac3bb72061b030d00e18896b336/dmesg-nfsroot-waimea-10:20131025233640:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-00087-g2fc546a:263 17:1:1 all_good:bad:all_bad boots Bisecting: 2 revisions left to test after this (roughly 1 step) [c16b43ff3bfac36ebb338091932969f9a82533f5] sysfs, kernfs: introduce kernfs_setattr() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:c16b43ff3bfac36ebb338091932969f9a82533f5:bisect-mmotm 2013-10-25-15:42:02 c16b43ff3bfac36ebb338091932969f9a82533f5 compiling 301 real 1622 user 154 sys 588.91% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-15:47:28 detecting boot state 3.12.0-rc6-00084-gc16b43f................................................. 1................................................................................ 2.. 3... 4................. 5............................. 6............... 7. 8.......................... 9............. 10...... 11... 12...... 13.. 15.. 17.................... 18... 19. 20.............. 21............. 22............ 23...... 24 25................... 26... 27... 28 30 34 37 38 39 40. 41 42. 43 44.. 45... 46 47.. 48. 49. 50.. 51. 52. 54 55 58 59. 61... 62 63 64 65. 66... 68........ 69... 70 71. 72. 73 74. 76..... 77 78.. 79. 80...... 81 82.. 84 86....... 87. 88. 90. 91... 92.. 93 95.............. 96 97... 98. 99..... 101. 102. 103. 105 106 107. 109. 110...... 111 112... 113 115 116.. 117 119 120........ 121. 122.. 123 124. 126 127 129... 131 133 134..... 136. 138.. 139. 141. 146. 148. 149 151 152...... 153. 154... 155.. 156. 157.. 159 160 162. 167... 169 171 172 173. 174..... 176.. 178 182. 185 187 188 190 191 193 194.. 195 196 197 198 200... 201 203 204. 205. 207 208 209 210 211. 212. 215..... 216 218 219... 221 222 224 225 226. 228. 229.... 230 231 232. 233..... 234. 235. 236 237 239 240 242 243. 246 248.. 249. 250. 251 252 254. 255.. 256.. 258 259 260 264. 267 268 270. 271 273 274. 275 276. 281 282 283 284 287 288 289.. 290 291.. 292. 294 295. 296 SUCCESS Bisecting: 0 revisions left to test after this (roughly 1 step) [c60c2b7e4de82fab809e29351f538d996c2dedc7] sysfs, kernfs: introduce kernfs_create_dir[_ns]() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/mmotm/obj-bisect ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:c60c2b7e4de82fab809e29351f538d996c2dedc7:bisect-mmotm 2013-10-25-22:14:18 c60c2b7e4de82fab809e29351f538d996c2dedc7 compiling 231 real 1641 user 145 sys 771.96% cpu x86_64-lkp-CONFIG_DEBUG_RODATA 2013-10-25-22:18:26 detecting boot state 3.12.0-rc6-00086-gc60c2b7........ 1. 2................... 3.... 4. 5............ 6. 8 9..... 11..... 13 14...... 15..... 17 18.. 19... 20... 21 22. 23 24 27 30 31........... 32..... 33....... 34...... 36. 38 41.. 42 43. 44. 47 48 49 52 54.... 55..... 56. 57.. 58.................................... 59..... 60................... 61........ 63. 64. 65.. 66 67... 68. 69.. 70 71 72 73 75 77 79 80 81 82 85. 87 88 89. 90 92 94 96 97 99 100 101 102. 103 104 105 108 111 113 114 116 118 122 124 128 129 132 137 138 141 144. 150 155 159 165 168 170 171 175 181 189 195 204 207 208 210 211. 212. 213... 214 216 217. 220 221 224 225 226 229 230. 233. 234 236 237........ 238............................ 240 243 244 246 247 252 254 256. 259 260 261 262 265. 266 267. 268 270 272 275 276 278. 280 282 283 285 287. 289. 292 293 296 SUCCESS 2fc546abb938dac3bb72061b030d00e18896b336 is the first bad commit commit 2fc546abb938dac3bb72061b030d00e18896b336 Author: Tejun Heo Date: Tue Oct 22 07:03:56 2013 -0400 sysfs, kernfs: prepare read path for kernfs We're in the process of separating out core sysfs functionality into kernfs which will deal with sysfs_dirents directly. This patch rearranges read path so that the kernfs and sysfs parts are separate. * Regular file read path is refactored such that kernfs_seq_start/next/stop/show() handle all the boilerplate work including locking and updating event count for poll, while sysfs_kf_seq_show() deals with interaction with kobj show method. * Bin file read path is refactored such that kernfs_file_direct_read() handles all the boilerplate work including buffer management and locking, while sysfs_kf_bin_read() deals with interaction with bin_attribute read method. kernfs_file_read() is added. It invokes either the seq_file or direct read path depending on the file type. This will eventually allow using the same file_operations for both file types, which is necessary to separate out kernfs. While this patch changes the order of some operations, it shouldn't change any visible behavior. Signed-off-by: Tejun Heo :040000 040000 12816ed88db6a87384ad34231a957e6b4e18fc6c 28d84775cb4f91281601713f27f8b738853f6fb9 M fs bisect run success ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:c60c2b7e4de82fab809e29351f538d996c2dedc7:bisect-mmotm 2013-10-26-01:43:15 c60c2b7e4de82fab809e29351f538d996c2dedc7 reuse /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/c60c2b7e4de82fab809e29351f538d996c2dedc7/vmlinuz-3.12.0-rc6-00086-gc60c2b7 2013-10-26-01:43:16 detecting boot state .......... 3.. 4... 5.. 6 7 8. 9 10 11.... 12.... 13 14... 15. 16........ 17... 19... 21 22 24... 26 27... 28.... 31 33 35 36.. 37 38 39 40 42. 43. 44 45 46. 48 49 50 51 52 55... 58 59 62.. 63 64 65 66.. 67 69.. 70. 72. 73 74 75 77.... 78 79 80. 81 84..... 86........ 88. 89. 90.......... 91... 92 93. 94 95 97... 98... 99.. 100 101.. 103. 104 105. 108. 109 110. 111 112... 113 114 115... 117.... 118 119......... 120............... 121..... 122.... 123. 124. 125........ 126 127. 128 130 131.. 132 133 134 135.. 137. 140. 142. 144. 145 146.. 147. 149 151 152 153 155 157 158.. 161 162. 163.. 166... 169.. 170 174 177... 178 180. 186. 189..... 190. 191 194 196 197 198 202 203 205 206 208 212. 214 215 216 218 219 220. 221 225 226 230 231 233. 236 239 240 241 242 245 248. 249 256 257 265 272 277 282 291 297 303 308 317 325 333 337 346 353 359 368 374 380 391 397 403 410 423 431 438 451 464 474 483 495 502 507 510 516 521 528 536 544 549 554 561 573 576 578 580 587 589 592. 595 596 602 604 608. 609 612 615 616 617 619 620 621 622 624. 625. 626 628 632 633 635 640 643 645... 646. 650. 653 654 656. 657 658 659 661 663 665 666 668 670. 672. 674 675 677 679 681 683 684. 685 687. 689.. 691..... 692. 695 696 697 700 702 705 707 713 714 715 718 720 724 726 728 730 733 737. 739.. 741. 742 744 747 749 750 752 756. 758 762 763 764 766 768 769 770 772 774 775 776 779 780 781 783 784 787 790 792 794 796. 798 799 800 801. 804 805 807 808 809 810...... 812. 813 817. 819 820 822 824 825 826 827 829 830. 831 832... 833. 835 836 837 838 839 840 841 843 844 845 846..... 847 848... 849 850... 852 855.. 857... 858. 859.. 860. 862...... 863. 865 866 867 868... 869 870 871. 874. 875 876. 878 879 881. 882 884. 885.. 886.. 887.. 888 SUCCESS ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:a3ccb6c1ef2ff3c5e681b0a36ba43feb8a3fb401:bisect-mmotm TEST FAILURE [ 9.393165] scsi 0:0:0:0: Direct-Access Linux scsi_debug 0004 PQ: 0 ANSI: 5 [ 9.433982] sd 0:0:0:0: [sda] 16384 512-byte logical blocks: (8.38 MB/8.00 MiB) [ 9.435012] ata_piix 0000:00:01.1: setting latency timer to 64 [ 9.435710] general protection fault: 0000 [#1] SMP [ 9.435711] Modules linked in: [ 9.435777] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.12.0-rc6-wl-01422-ga3ccb6c #384 [ 9.435778] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.435801] task: ffff88001df70000 ti: ffff88001df54000 task.ti: ffff88001df54000 [ 9.435861] RIP: 0010:[] [] ata_finalize_port_ops+0x67/0xa5 [ 9.435862] RSP: 0000:ffff88001df55b80 EFLAGS: 00010246 [ 9.435862] RAX: ffffffff8103fd35 RBX: ffffffff8103fb55 RCX: b87d8b4843e6b290 [ 9.435863] RDX: b87d8b4843e6b0b0 RSI: ffffffff82069c08 RDI: 0000000000000282 [ 9.435864] RBP: ffff88001df55b90 R08: ffffffff827f6d58 R09: 0000000000000000 [ 9.435872] R10: 0000000000000009 R11: ffff88001e20a000 R12: ffffffff8103fd35 [ 9.435872] R13: ffffffff816c90d5 R14: 0000000000000000 R15: 0000000000000001 [ 9.435873] FS: 0000000000000000(0000) GS:ffff88001e200000(0000) knlGS:0000000000000000 [ 9.435874] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 9.435875] CR2: 0000000000000000 CR3: 0000000001f9a000 CR4: 00000000000006f0 [ 9.435895] Stack: [ 9.435897] ffff88001bd6ba18 0000000000000000 ffff88001df55bc8 ffffffff816b870d [ 9.435898] ffff88001df36098 ffff88001bd6ba18 ffffffff816c90d5 ffffffff81eca706 [ 9.435899] 0000000000000000 ffff88001df55c18 ffffffff816c7b63 ffffffff8206c130 [ 9.435900] Call Trace: [ 9.435909] [] ata_host_start+0x36/0x169 [ 9.435920] [] ? ata_bmdma_port_intr+0xee/0xee [ 9.435935] [] ata_pci_sff_activate_host+0x37/0x1fb [ 9.435960] [] ? pcibios_set_master+0x89/0x8d [ 9.435971] [] piix_init_one+0x62c/0x761 [ 9.435988] [] ? local_clock+0x41/0x5a [ 9.435999] [] local_pci_probe+0x3e/0x66 [ 9.436000] [] pci_device_probe+0xc4/0xea [ 9.436015] [] driver_probe_device+0x11a/0x2f2 [ 9.436016] [] __driver_attach+0x61/0x83 [ 9.436017] [] ? __device_attach+0x3d/0x3d [ 9.436023] [] bus_for_each_dev+0x80/0x8a [ 9.436024] [] driver_attach+0x1e/0x20 [ 9.436025] [] bus_add_driver+0x132/0x1fc [ 9.436027] [] driver_register+0x8e/0xca [ 9.436028] [] __pci_register_driver+0x60/0x63 [ 9.436039] [] ? ahci_pci_driver_init+0x1b/0x1b [ 9.436040] [] piix_init+0x19/0x29 [ 9.436047] [] do_one_initcall+0xa4/0x138 [ 9.436059] [] ? parse_args+0x261/0x33f [ 9.436066] [] kernel_init_freeable+0x159/0x1df [ 9.436069] [] ? do_early_param+0x88/0x88 [ 9.436075] [] ? rest_init+0xdb/0xdb [ 9.436076] [] kernel_init+0xe/0xd6 [ 9.436082] [] ret_from_fork+0x7c/0xb0 [ 9.436083] [] ? rest_init+0xdb/0xdb [ 9.436149] Code: 48 85 d2 75 05 48 89 d8 eb 3e 48 89 d1 48 89 d8 4c 39 e0 73 16 48 83 38 00 75 06 48 8b 31 48 89 30 48 83 c0 08 48 83 c1 08 eb e5 <48> 8b 92 e0 01 00 00 eb cc 48 81 38 00 f0 ff ff 76 07 48 c7 00 [ 9.436152] RIP [] ata_finalize_port_ops+0x67/0xa5 [ 9.436154] RSP [ 9.437104] ---[ end trace f0c6b75de1a6b215 ]--- [ 9.437108] note: swapper/0[1] exited with preempt_count 1 /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/a3ccb6c1ef2ff3c5e681b0a36ba43feb8a3fb401/dmesg-nfsroot-snb-22:20131023035628:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-wl-01422-ga3ccb6c:384 /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/a3ccb6c1ef2ff3c5e681b0a36ba43feb8a3fb401/dmesg-nfsroot-lkp-tt02-1:20131023200255:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-wl-01422-ga3ccb6c:384 /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/a3ccb6c1ef2ff3c5e681b0a36ba43feb8a3fb401/dmesg-nfsroot-roam-16:20131023041930:x86_64-lkp-CONFIG_DEBUG_RODATA:3.12.0-rc6-wl-01422-ga3ccb6c:384 60:3:38 all_good:bad:all_bad boots HEAD is now at a3ccb6c Merge 'lunn/v3.12-rc5-rafael-next-dove-cpufreq' into devel-hourly-2013102301 ========= upstream ========= Fetching linus ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:d255c59aab2a3fdf0bb8a5db75e50d9c926c3bb9:bisect-mmotm 2013-10-26-07:18:41 d255c59aab2a3fdf0bb8a5db75e50d9c926c3bb9 compiling 2013-10-26-07:23:19 detecting boot state 3.12.0-rc6-00298-gd255c59..................................... 1... 2..... 3....... 4.. 5............ 6 7. 9 10.. 11. 12. 13...... 14 15 16................. 17. 18 19. 20.............. 21 22..... 23 24. 25 26... 27..... 28...... 31 33 35 36.. 37 38. 39 40 41. 43 44 45.... 46 47 49 50 51 52.. 53. 54. 56. 57 58 59. 61 62 64 66 67. 69 70 71. 72 73 75 76 78 79 80 81 84 86 87 89 90 91.. 95 97 99 100. 101 106 107 109 114 116 118 123 127 129 131 133 135 136 138 140 141 144 145 147 149.. 152 155 158 160 162 163 165. 166 168 172 174 177 178 181 182 183. 184 187 190 192 196 197. 199 200.. 201 202 204 207 209 211 212 213. 214.. 218 220 221 224. 226 227 228 229.. 234. 236 239. 240 241 242 245 246 249. 251 252 254. 256 258 261 264 268 270 274 275 276. 277 281 285 287 289 290 295 298 303 305 309 311 312 315 317 321 322. 323 324 327 328 330 335 338 339. 342 344 346 347 350.. 351 356 360 361 363 364 369 371 373. 377 381 382 385 386 387 389 390 392 393. 397. 400 404 406 409 410 415 416 419... 422 426 428 430 431 435 437 440 445. 446 448 450 451 452 455. 458 460 461 464 466 471. 472 475 478 479 480 482 484 488... 491 493 494. 497 498 500 503 505. 509 513 517 520 521 525 527 529 531 533 534 537. 541 542 545 548 551. 553 554 556 558 563 565 568 572 575. 578 582. 586 588 591 593 595 596 598 599 601 602 607. 610 612.. 613 616 617 622. 625 627 630 632. 634 636 639 641 642 645. 648. 650 652 653 654 655 656 657 658. 660 663. 665 667... 668. 671 673 675 677. 679 681 683... 684.. 686. 687 689. 691. 693 694 695 696 698. 704 708 711 712 713.. 715 717 718 719 722. 725 727 728 731 732 733 735 737 739 740. 741.. 743 744 746. 747 748 749 752 754. 755 756. 757 760 762. 763.. 764 767 768. 771 773 774 775 777 778 779 782. 784 786 788 789 792 794 798 800 802 803. 805 806 810 811 812 813. 814 815 819 820 821 822. 823 825 827. 828. 829... 830. 832 833.. 834 835. 836 837 838 839 840. 841 842............ 843.. 844... 845. 846 848. 849.. 850 852........ 853.. 854 855... 856 857....... 858 859... 860.. 861.... 863.......... 865... 866 867 868. 869 870... 871.. 872... 873 875.... 876. 877.... 878...... 879. 880........... 881......... 882............. 883.... 884.... 885.... 886 887............. 888 SUCCESS ========= linux-next ========= Fetching next ls -a /kernel-tests/run-queue/kvm/x86_64-lkp-CONFIG_DEBUG_RODATA/linux-devel:devel-hourly-2013102301:a0cf1abc25ac197dd97b857c0f6341066a8cb1cf:bisect-mmotm 2013-10-26-14:29:46 a0cf1abc25ac197dd97b857c0f6341066a8cb1cf reuse /kernel/x86_64-lkp-CONFIG_DEBUG_RODATA/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/vmlinuz-3.12.0-rc2-next-20130927-03100-ga0cf1ab 2013-10-26-14:29:47 detecting boot state .............. 1...................................................................................... 2 3...................... 4.. 5. 6............ 7........ 8 9.......................... 10..... 11........ 12..................... 13.. 14... 15. 16.... 17. 18.............. 19... 20 21........... 22....... 23. 24...... 25...... 26............ 28 29 30.... 31....... 32............... 34................... 35........... 36...... 37 39.. 42 44. 48.. 50 51 54 56. 59 61. 62 64 66 69. 71 72 74... 76. 79.. 80 81 85 86 87 92 96 98 99... 100 101 104 106 108 109 111. 112 114 115. 118.. 119. 120 123 126. 127. 128.. 131 135 136 138 139 140. 141 143 146. 147 149 151. 154 156 159 160 162 163 166 169 172 175.. 176 178. 183. 184 187 190 191 197 201. 204 206 207 209 210 212 213. 215 216 217 219 223 227 228 231 232 234 236 239 241 242 244 245. 246 248 249 250 252. 254 256 258. 260 261 263 265 266. 267 268 271. 272 273 275 277 279 280 281 282 284 285 286 288 289 290 294 295 298 300 302 304 306 309. 312 314. 317 318 319 322 323 324... 325 326 327 328. 330. 331. 333 334. 337 338 339 340 341 342 343.. 346 348.. 349. 350 354 355. 356 357 361 364 365 367 368 372 374 375 376. 377.. 378 379. 380.. 382 383. 384 385.. 386 387 388 389.. 391 392 393 395 398 399.. 400. 403 406. 407 409..... 410 411.. 413 414..... 416... 418 419 420. 422 424. 426. 427 428. 429 432 435.. 436 437. 438 440 441. 444 445 446 449 450 451 452. 455 458 459 460 461.. 462 464 465 467. 468 469. 470 471 472 475 476 477. 479 480 483 484 486. 489... 492 494 495. 496 497 498. 499. 501 502 503 505. 506. 507 509 511 514 516. 518 521 522 523 525 526. 527 528.. 529 531. 533 534 536.. 537... 538. 540 542. 543.. 544 546 547 549 551. 553 554 556 560 562 563 566 568 569 570.. 571 573 574... 576. 577 578 579.. 580 581 582 583 584.. 585 586. 589. 591 592. 595. 597 598 599.. 601 602 604 606 607 608 610 612. 613 614. 616. 619 620 621..... 623. 625 627. 628 629 631 634 635... 636. 639.... 642... 644 645. 648. 651. 652 655. 656.. 658 659. 660 664 667. 671 673 675 677 680 681. 683 684 685 689 691.. 692. 693. 694 696 699 700. 701. 703 705 706 708 710. 711... 712 714 715.. 716.. 717 718. 720 722 724 726 727 728 729 730 731 732 733 736 739 742 743 745 749 750. 754. 755. 756 757.... 760 761 762.. 763 765 766 769 771. 774. 776 777. 778 779 781.... 782... 783.. 784 785 787 788 789.. 790 791. 792. 793.. 794.. 796 797. 799 801.... 803 805. 806.. 808... 809.... 810 811 812 813 815 816.... 817 818... 819 822... 823. 824. 825.. 827 829.. 830. 831.. 833............. 834...... 835... 836. 837 838 839 841 842 843. 845 846 848 849. 850.... 852.. 853.. 855 857 859. 860 862.. 866. 868 870 872 874. 875. 877.. 878 879.. 880............................................ 881.............................................................................................................................................................................................................................................................................................................add_to_run_queue 7 ............................................. 882............................................................ 883............ 884.................. 885................................ 886................................. 887............................................................................. 888 SUCCESS