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[Bug uprobes/13539] occasional oops, kernel SEGV, RHEL5, :uprobes:uprobe_free_process+0xba/0x131


http://sourceware.org/bugzilla/show_bug.cgi?id=13539

--- Comment #8 from David Smith <dsmith at redhat dot com> 2012-01-26 22:34:19 UTC ---
When testing this on RHEL6 (2.6.32-220.4.1.el6.x86_64.debug), I just saw the
following (which is still better than an oops):

BUG: MAX_LOCKDEP_KEYS too low!
turning off the locking correctness validator.
Pid: 19728, comm: loop Not tainted 2.6.32-220.4.1.el6.x86_64.debug #1
Call Trace:
 [<ffffffff810ac035>] ? register_lock_class+0x235/0x470
 [<ffffffff81013853>] ? native_sched_clock+0x13/0x60
 [<ffffffff81012d29>] ? sched_clock+0x9/0x10
 [<ffffffff810af3b3>] ? __lock_acquire+0x93/0x1570
 [<ffffffff81013853>] ? native_sched_clock+0x13/0x60
 [<ffffffff81012d29>] ? sched_clock+0x9/0x10
 [<ffffffff810b0934>] ? lock_acquire+0xa4/0x120
 [<ffffffffa07ef31e>] ? stap_uprobe_process_found+0x23e/0x490
[stap_20011319d85]
 [<ffffffff810daf2d>] ? get_utrace_lock+0x6d/0x120
 [<ffffffff810b0b53>] ? lock_release_non_nested+0x1a3/0x3a0
 [<ffffffff8151ea13>] ? __mutex_lock_common+0x43/0x400
 [<ffffffffa07ef31e>] ? stap_uprobe_process_found+0x23e/0x490
[stap_20011319d85]
 [<ffffffff8109e2d8>] ? sched_clock_cpu+0xb8/0x110
 [<ffffffff810ab1ed>] ? trace_hardirqs_off+0xd/0x10
 [<ffffffff8109e41f>] ? cpu_clock+0x6f/0x80
 [<ffffffffa07ef31e>] ? stap_uprobe_process_found+0x23e/0x490
[stap_20011319d85]
 [<ffffffff810ae30d>] ? lock_release_holdtime+0x3d/0x190
 [<ffffffff8151eed8>] ? mutex_lock_nested+0x48/0x60
 [<ffffffffa07ef31e>] ? stap_uprobe_process_found+0x23e/0x490
[stap_20011319d85]
 [<ffffffffa07ef66b>] ? __stp_utrace_task_finder_target_quiesce+0xfb/0x3d0
[sta]
 [<ffffffff810ae30d>] ? lock_release_holdtime+0x3d/0x190
 [<ffffffff810d8ed0>] ? start_callback+0xa0/0xd0
 [<ffffffff810d9ee4>] ? utrace_resume+0xf4/0x130
 [<ffffffff8100ab10>] ? do_notify_resume+0xb0/0xc0
 [<ffffffff8100b404>] ? int_signal+0x12/0x17
stap_2d33a1bdbf5bbf70ba121e44b1f08a2_20040: systemtap: 1.7/0.152, base:
fffffff0
stap_d47936fcb49b72c6f17c4fd996210e0_20390: systemtap: 1.7/0.152, base:
fffffff0
stap_e2bb710e788d1876db77d75ca35724e_20630: systemtap: 1.7/0.152, base:
fffffff0
stap_41e233c33c9b9cf9ec0bdcb6f1daade_20871: systemtap: 1.7/0.152, base:
fffffff0
stap_cb77720af8b8c98e8880014b96febaf_21110: systemtap: 1.7/0.152, base:
fffffff0
stap_762ae1764505116c3fb959a594e588a_21350: systemtap: 1.7/0.152, base:
fffffff0
stap_27ab0f045c37da028e10caf504af649_21596: systemtap: 1.7/0.152, base:
fffffff0
stap_78d447984a35de9b21e18cb0cab35a8_21835: systemtap: 1.7/0.152, base:
fffffff0
stap_b1011b2aafe027b8f8c0867b99a24da_22076: systemtap: 1.7/0.152, base:
fffffff0
stap_4a5d3ffcea64eea9bd15945470c6d19_22316: systemtap: 1.7/0.152, base:
fffffff0
stap_2dd15849ef5f69d61b7c9b2fcb1b7c2_22556: systemtap: 1.7/0.152, base:
fffffff0
stap_c9075c8e6803117ec44383c623a08ef_22796: systemtap: 1.7/0.152, base:
fffffff0
stap_321b83fb9252afcfc3639c6d93aa5b7_23036: systemtap: 1.7/0.152, base:
fffffff0
stap_99052e6b872b32efbfb629721235d36_23276: systemtap: 1.7/0.152, base:
fffffff0
stap_6bbcd2573dab9d1076fa179f935c441_23516: systemtap: 1.7/0.152, base:
fffffff0
stap_f9312d8bae04919752574c65d93aaa6_23756: systemtap: 1.7/0.152, base:
fffffff0
stap_de64570653d1a21cdb8e6c0935633c2_23996: systemtap: 1.7/0.152, base:
fffffff0
stap_a61d2757f66e30c0e0218b148ab4dfa_24236: systemtap: 1.7/0.152, base:
fffffff0
stap_170bf3afde0724f92d05a3c35e72b79_24476: systemtap: 1.7/0.152, base:
fffffff0
stap_17df58d1777fa0e55934744cff7673f_24716: systemtap: 1.7/0.152, base:
fffffff0
stap_f875a6812b52f5b77f3351a6dbed1b0_24956: systemtap: 1.7/0.152, base:
fffffff0
stap_a59083aa77b019e7d8eeeb45f46f64b_25196: systemtap: 1.7/0.152, base:
fffffff0
stap_7df023d2a130fbe7e212ddccc89d9c8_25436: systemtap: 1.7/0.152, base:
fffffff0
stap_aef7a14ce57fb62c24fe9270c9cba62_25676: systemtap: 1.7/0.152, base:
fffffff0
stap_12c4b1a6414b56ce6cfb9fc1f3ff866_25916: systemtap: 1.7/0.152, base:
fffffff0
stap_557243b84bb16284e3a5eb72873d0e2_26156: systemtap: 1.7/0.152, base:
fffffff0
stap_6d3f1ee8b730a4b9fd55559391749ce_26171: systemtap: 1.7/0.152, base:
fffffff0
stap_a0319d4181f8150977aec294313305c_26187: systemtap: 1.7/0.152, base:
fffffff0
stap_43f459f3a1511a8dbea7cd536b2692a_26202: systemtap: 1.7/0.152, base:
fffffff0
stap_b5f0b925503679d35fe81ce7ce4bb64_26217: systemtap: 1.7/0.152, base:
fffffff0
stap_f7479031df6151a16052d52ccd3229f_26455: systemtap: 1.7/0.152, base:
fffffff0
stap_629339df3f5443e55e68db6bb99521f_26693: systemtap: 1.7/0.152, base:
fffffff0
stap_b6022e72bbbaeb7d6c901eaf8532954_26955: systemtap: 1.7/0.152, base:
fffffff0
stap_74fb0903402ae53e58589703ffc618e_27192: systemtap: 1.7/0.152, base:
fffffff0
stap_b38a1dc607edc6127338896862aaf24_27429: systemtap: 1.7/0.152, base:
fffffff0
stap_7e61007af13e66b328cd6bcf43e8204_27665: systemtap: 1.7/0.152, base:
fffffff0
stap_3b2a6c6c34b2d015a3239d393b69e6e_27903: systemtap: 1.7/0.152, base:
fffffff0
stap_ac00a3e64561b9e766b68e18a6b374a_28143: systemtap: 1.7/0.152, base:
fffffff0
stap_732af8998c13f2a2d7803cf2784e357_28180: systemtap: 1.7/0.152, base:
fffffff0
stap_301a3f18642f17397c8c1d0641cf2e7_28195: systemtap: 1.7/0.152, base:
fffffff0
stap_4e2eee4b70d50d68a79776223e664d0_28214: systemtap: 1.7/0.152, base:
fffffff0
stap_78dadc54b0bb05aa4da249f2ef6ea44_28228: systemtap: 1.7/0.152, base:
fffffff0
stap_d772048d24ff263be233a905cd2290b_28242: systemtap: 1.7/0.152, base:
fffffff0
stap_3a004dd992ca780e4e3d2f03b02ea7a_28256: systemtap: 1.7/0.152, base:
fffffff0
stap_b529d4af03a64a77b8a2221b010ed62_28270: systemtap: 1.7/0.152, base:
fffffff0
stap_bc381196a6b1333f7469a42d767254f_28284: systemtap: 1.7/0.152, base:
fffffff0
stap_20011319d85d8cb4348b7e4178331ee_28298: systemtap: 1.7/0.152, base:
fffffff0
stap_cb77720af8b8c98e8880014b96febaf_28312: systemtap: 1.7/0.152, base:
fffffff0
stap_762ae1764505116c3fb959a594e588a_28326: systemtap: 1.7/0.152, base:
fffffff0
stap_27ab0f045c37da028e10caf504af649_28345: systemtap: 1.7/0.152, base:
fffffff0
stap_78d447984a35de9b21e18cb0cab35a8_28359: systemtap: 1.7/0.152, base:
fffffff0
stap_b1011b2aafe027b8f8c0867b99a24da_28372: systemtap: 1.7/0.152, base:
fffffff0
stap_4a5d3ffcea64eea9bd15945470c6d19_28387: systemtap: 1.7/0.152, base:
fffffff0
stap_2dd15849ef5f69d61b7c9b2fcb1b7c2_28401: systemtap: 1.7/0.152, base:
fffffff0
stap_c9075c8e6803117ec44383c623a08ef_28415: systemtap: 1.7/0.152, base:
fffffff0
stap_321b83fb9252afcfc3639c6d93aa5b7_28429: systemtap: 1.7/0.152, base:
fffffff0
stap_99052e6b872b32efbfb629721235d36_28443: systemtap: 1.7/0.152, base:
fffffff0
stap_170bf3afde0724f92d05a3c35e72b79_28457: systemtap: 1.7/0.152, base:
fffffff0
stap_17df58d1777fa0e55934744cff7673f_28471: systemtap: 1.7/0.152, base:
fffffff0
stap_f875a6812b52f5b77f3351a6dbed1b0_28485: systemtap: 1.7/0.152, base:
fffffff0
stap_a59083aa77b019e7d8eeeb45f46f64b_28498: systemtap: 1.7/0.152, base:
fffffff0
stap_6bbcd2573dab9d1076fa179f935c441_28512: systemtap: 1.7/0.152, base:
fffffff0
stap_f9312d8bae04919752574c65d93aaa6_28527: systemtap: 1.7/0.152, base:
fffffff0
stap_de64570653d1a21cdb8e6c0935633c2_28600: systemtap: 1.7/0.152, base:
fffffff0
stap_a61d2757f66e30c0e0218b148ab4dfa_28614: systemtap: 1.7/0.152, base:
fffffff0
stap_aef7a14ce57fb62c24fe9270c9cba62_28687: systemtap: 1.7/0.152, base:
fffffff0
stap_7df023d2a130fbe7e212ddccc89d9c8_28701: systemtap: 1.7/0.152, base:
fffffff0
stap_12c4b1a6414b56ce6cfb9fc1f3ff866_28715: systemtap: 1.7/0.152, base:
fffffff0
stap_557243b84bb16284e3a5eb72873d0e2_28729: systemtap: 1.7/0.152, base:
fffffff0
stap_2d33a1bdbf5bbf70ba121e44b1f08a2_28743: systemtap: 1.7/0.152, base:
fffffff0
stap_d47936fcb49b72c6f17c4fd996210e0_28756: systemtap: 1.7/0.152, base:
fffffff0
stap_e2bb710e788d1876db77d75ca35724e_28771: systemtap: 1.7/0.152, base:
fffffff0
stap_41e233c33c9b9cf9ec0bdcb6f1daade_28785: systemtap: 1.7/0.152, base:
fffffff0
stap_d7a432da661a2367de2ecb0ca05d4e8_29023: systemtap: 1.7/0.152, base:
fffffff0
stap_a2708d6f29c6d53d87bd634031edeaf_29261: systemtap: 1.7/0.152, base:
fffffff0
stap_e6d078710d6700099e0ae59899e0783_29499: systemtap: 1.7/0.152, base:
fffffff0
stap_55ae3daf2a24145e8209bbdcdd042bf_29737: systemtap: 1.7/0.152, base:
fffffff0
stap_b6364a1497ea32d833fc4c2ef0c7526_29751: systemtap: 1.7/0.152, base:
fffffff0
stap_3114069fffb5b23274a5e31a9b9f763_29769: systemtap: 1.7/0.152, base:
fffffff0
stap_717eca9f7c6fbe5b7197ea9d96f7d36_29785: systemtap: 1.7/0.152, base:
fffffff0
stap_f35cb654815bfacf1b53db536249c3d_30025: systemtap: 1.7/0.152, base:
fffffff0
stap_d58904f2d11490984a1991d72f0014c_30265: systemtap: 1.7/0.152, base:
fffffff0
stap_3b9f0318213a3770a24162cfa1cdd30_30505: systemtap: 1.7/0.152, base:
fffffff0
stap_18e7ad77a58b066fff5d3b294b87c6e_30750: systemtap: 1.7/0.152, base:
fffffff0
stap_d571d7bb144cba8957ae1bcb4669f33_30993: systemtap: 1.7/0.152, base:
fffffff0
stap_a9b688a7ae856a1f12e8a3b6a320816_31233: systemtap: 1.7/0.152, base:
fffffff0
stap_35313cc5cfd1576ad558cd605bbd3c5_31473: systemtap: 1.7/0.152, base:
fffffff0
stap_7d24008e926c66c9b8b23fb1eea9a42_31713: systemtap: 1.7/0.152, base:
fffffff0
stap_6f97fd16b37afc021f6a9d8987f55c2_31953: systemtap: 1.7/0.152, base:
fffffff0
stap_02a5bf75d8291ca8c7df40cdcb5ec63_32193: systemtap: 1.7/0.152, base:
fffffff0
stap_1052840ca67f5d8427d4249b5962474_32433: systemtap: 1.7/0.152, base:
fffffff0
stap_dafb5f8c9066a5e9a49b76f9df8ab4b_32673: systemtap: 1.7/0.152, base:
fffffff0
stap_70cb6f31ed05fc0b69874a2f63dd2c10__456: systemtap: 1.7/0.152, base:
fffffff0
stap_932473e387bdcb45a4dcff1a25f62608__698: systemtap: 1.7/0.152, base:
fffffff0
stap_f94209c863a0d68af4e03b5dbe2155c6__950: systemtap: 1.7/0.152, base:
fffffff0
stap_ca2ef59fb68efa71453027a809906c94_1192: systemtap: 1.7/0.152, base:
fffffff0
stap_2c39bff475a8657f5a2e963379dea928_1453: systemtap: 1.7/0.152, base:
fffffff0
stap_9d18f77aa93f20dcef4a81e7b0185d66_1693: systemtap: 1.7/0.152, base:
fffffff0
stap_1718dfe05bcce6db5c88568fbac33f3b_1933: systemtap: 1.7/0.152, base:
fffffff0
stap_7764bcd6be8045b5242689b234ae8952_2173: systemtap: 1.7/0.152, base:
fffffff0
stap_a23af06f6cba198055c07faae5e3acc0_2413: systemtap: 1.7/0.152, base:
fffffff0
stap_d12e94a0315d2d29f57ad01287183200_2653: systemtap: 1.7/0.152, base:
fffffff0
stap_7f7ad5d649d1ac59dd9f6b188aac24d3_2895: systemtap: 1.7/0.152, base:
fffffff0
stap_bf816428d4c61cdd915b86a56be23799_3135: systemtap: 1.7/0.152, base:
fffffff0
stap_dd848112b6e84563ef43c020064451a9_3375: systemtap: 1.7/0.152, base:
fffffff0
stap_c8f75b93eecfffd05f7f1e31e053b796_3615: systemtap: 1.7/0.152, base:
fffffff0
stap_ea1ee8fa7035b9bc6913ef4ac1960fd9_3855: systemtap: 1.7/0.152, base:
fffffff0
stap_b5336ff09c0a2a29677a991d7bbcbb70_4095: systemtap: 1.7/0.152, base:
fffffff0
stap_44124397a66dfd69d5af4e886f22224f_4335: systemtap: 1.7/0.152, base:
fffffff0
stap_66d6c0adc18adb07eb2117137347b0a8_4575: systemtap: 1.7/0.152, base:
fffffff0
stap_261ed1e4b3bf7ce6d4482195fffcaa5f_4821: systemtap: 1.7/0.152, base:
fffffff0
stap_b9f2abf65f4dbd2f2b0cb728149c0be0_5075: systemtap: 1.7/0.152, base:
fffffff0
stap_dd4da8a2ae85219b4b14323dc3455988_5332: systemtap: 1.7/0.152, base:
fffffff0
stap_f28638e99f4a3a45042f9995524b84e9_5572: systemtap: 1.7/0.152, base:
fffffff0
stap_10a753790a79f58f0c11b06df9de0918_5814: systemtap: 1.7/0.152, base:
fffffff0
stap_3ff8332830e45e9128f8fec2a70598b1_6054: systemtap: 1.7/0.152, base:
fffffff0
stap_9e69509a0ca707d6da2b713f5f84dd62_6069: systemtap: 1.7/0.152, base:
fffffff0
stap_36c4803dd014be3dd2526c1ddce8bfc4_6084: systemtap: 1.7/0.152, base:
fffffff0
stap_bb10960fc043f10c4ebc85fbf73476d8_6100: systemtap: 1.7/0.152, base:
fffffff0
stap_490246a73d369a832ad59df4970d9b72_6115: systemtap: 1.7/0.152, base:
fffffff0
stap_20dcba22ef9427e76602d3d81cf3f827_6352: systemtap: 1.7/0.152, base:
fffffff0
stap_9bd335dc6e85e4ba962a94cafa3e6478_6591: systemtap: 1.7/0.152, base:
fffffff0
stap_a1a390da0ee6e05ae9b8d296e83ef436_6853: systemtap: 1.7/0.152, base:
fffffff0
stap_f3539924c35cbbb1c41a494499449103_7089: systemtap: 1.7/0.152, base:
fffffff0
stap_ba2736e4411e2fc5f491e0701a9bd6e7_7325: systemtap: 1.7/0.152, base:
fffffff0
stap_ff3c01b7e8524d5026be621f66733171_7562: systemtap: 1.7/0.152, base:
fffffff0
stap_2de7eb12df855cfbf00871a812fb6ee0_7799: systemtap: 1.7/0.152, base:
fffffff0
stap_d2ea48b6ca27e7031473951f2de84aac_8035: systemtap: 1.7/0.152, base:
fffffff0
stap_340e7940782fb1c5c0261368ca27a438_8272: systemtap: 1.7/0.152, base:
fffffff0
stap_6d0e93bc133de4cea3aa3fe1305a9fe4_8512: systemtap: 1.7/0.152, base:
fffffff0
stap_d58904f2d11490984a1991d72f0014cb_8550: systemtap: 1.7/0.152, base:
fffffff0
stap_3b9f0318213a3770a24162cfa1cdd30f_8564: systemtap: 1.7/0.152, base:
fffffff0
stap_18e7ad77a58b066fff5d3b294b87c6e6_8584: systemtap: 1.7/0.152, base:
fffffff0
stap_d571d7bb144cba8957ae1bcb4669f330_8597: systemtap: 1.7/0.152, base:
fffffff0
stap_f35cb654815bfacf1b53db536249c3d8_8612: systemtap: 1.7/0.152, base:
fffffff0
stap_a9b688a7ae856a1f12e8a3b6a320816d_8625: systemtap: 1.7/0.152, base:
fffffff0
stap_35313cc5cfd1576ad558cd605bbd3c5e_8640: systemtap: 1.7/0.152, base:
fffffff0
stap_6f97fd16b37afc021f6a9d8987f55c25_8654: systemtap: 1.7/0.152, base:
fffffff0
stap_02a5bf75d8291ca8c7df40cdcb5ec63a_8668: systemtap: 1.7/0.152, base:
fffffff0
stap_fecc97de8277719dad6fc9c0ad2f2ae1_8906: systemtap: 1.7/0.152, base:
fffffff0
stap_ac0136dae229e1c50610fa2156bdc5c0_9129: systemtap: 1.7/0.152, base:
fffffff0
stap_f94209c863a0d68af4e03b5dbe2155c6_9138: systemtap: 1.7/0.152, base:
fffffff0
stap_ca2ef59fb68efa71453027a809906c94_9147: systemtap: 1.7/0.152, base:
fffffff0
stap_2c39bff475a8657f5a2e963379dea928_9160: systemtap: 1.7/0.152, base:
fffffff0
stap_9d18f77aa93f20dcef4a81e7b0185d66_9169: systemtap: 1.7/0.152, base:
fffffff0
stap_1718dfe05bcce6db5c88568fbac33f3b_9178: systemtap: 1.7/0.152, base:
fffffff0
stap_7764bcd6be8045b5242689b234ae8952_9187: systemtap: 1.7/0.152, base:
fffffff0
stap_a23af06f6cba198055c07faae5e3acc0_9196: systemtap: 1.7/0.152, base:
fffffff0
stap_d12e94a0315d2d29f57ad01287183200_9205: systemtap: 1.7/0.152, base:
fffffff0
stap_7f7ad5d649d1ac59dd9f6b188aac24d3_9214: systemtap: 1.7/0.152, base:
fffffff0
stap_bf816428d4c61cdd915b86a56be23799_9223: systemtap: 1.7/0.152, base:
fffffff0
stap_44124397a66dfd69d5af4e886f22224f_9232: systemtap: 1.7/0.152, base:
fffffff0
stap_66d6c0adc18adb07eb2117137347b0a8_9241: systemtap: 1.7/0.152, base:
fffffff0
stap_261ed1e4b3bf7ce6d4482195fffcaa5f_9250: systemtap: 1.7/0.152, base:
fffffff0
stap_b9f2abf65f4dbd2f2b0cb728149c0be0_9259: systemtap: 1.7/0.152, base:
fffffff0
stap_dd848112b6e84563ef43c020064451a9_9268: systemtap: 1.7/0.152, base:
fffffff0
stap_c8f75b93eecfffd05f7f1e31e053b796_9277: systemtap: 1.7/0.152, base:
fffffff0
stap_ea1ee8fa7035b9bc6913ef4ac1960fd9_9286: systemtap: 1.7/0.152, base:
fffffff0

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