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Date: Tue, 6 May 2014 12:57:08 -0400 (EDT) From: Vince Weaver <vincent.weaver@...ne.edu> To: Vince Weaver <vincent.weaver@...ne.edu> cc: Peter Zijlstra <peterz@...radead.org>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org> Subject: Re: [perf] more perf_fuzzer memory corruption On Mon, 5 May 2014, Vince Weaver wrote: > On Mon, 5 May 2014, Vince Weaver wrote: > > > Meanwhile the haswell and AMD machines have been fuzzing away without > > issue, I don't know why the core2 machine is always the trouble maker. > > The haswell has been fuzzing 12 hours with only a NMI dazed/confused > message. So the Haswell seemed to still be going strong after 24-hours, but then I killed the fuzzer with control-C and got this. ^C [87536.479011] ------------[ cut here ]------------ [87536.484553] WARNING: CPU: 1 PID: 11978 at lib/list_debug.c:59 __list_del_entry+0xa1/0xd0() [87536.493994] list_del corruption. prev->next should be ffff8800ce684810, but was 6b6b6b6b6b6b6b6b [87536.503915] Modules linked in: fuse x86_pkg_temp_thermal intel_powerclamp coretemp kvm snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_generic i915 aesni_intel snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device tpm_tis ppdev snd aes_x86_64 parport_pc tpm evdev mei_me drm_kms_helper iTCO_wdt drm soundcore lrw gf128mul glue_helper iTCO_vendor_support wmi ablk_helper i2c_algo_bit button battery processor mei psmouse parport pcspkr serio_raw cryptd i2c_i801 video i2c_core lpc_ich mfd_core sd_mod sr_mod crc_t10dif cdrom crct10dif_common ahci libahci ehci_pci e1000e libata xhci_hcd ehci_hcd ptp crc32c_intel usbcore scsi_mod pps_core usb_common fan thermal thermal_sys [87536.581372] CPU: 1 PID: 11978 Comm: perf_fuzzer Tainted: G W 3.15.0-rc1+ #104 [87536.590762] Hardware name: LENOVO 10AM000AUS/SHARKBAY, BIOS FBKT72AUS 01/26/2014 [87536.599435] 0000000000000009 ffff880117b57ad8 ffffffff81649ca0 ffff880117b57b20 [87536.608228] ffff880117b57b10 ffffffff810646ad ffff8800ce684800 ffff880036a64000 [87536.616970] ffff8800ce684810 ffff8800ce684800 0000000000000001 ffff880117b57b70 [87536.625688] Call Trace: [87536.629039] [<ffffffff81649ca0>] dump_stack+0x45/0x56 [87536.635247] [<ffffffff810646ad>] warn_slowpath_common+0x7d/0xa0 [87536.642374] [<ffffffff8106471c>] warn_slowpath_fmt+0x4c/0x50 [87536.649211] [<ffffffff813c9fe1>] __list_del_entry+0xa1/0xd0 [87536.655953] [<ffffffff81131ec4>] list_del_event+0xe4/0xf0 [87536.662477] [<ffffffff811326c0>] perf_remove_from_context+0xb0/0x120 [87536.670005] [<ffffffff81133d8f>] perf_event_release_kernel+0x3f/0x80 [87536.677530] [<ffffffff81133ea3>] put_event+0xd3/0x100 [87536.683702] [<ffffffff81133e00>] ? put_event+0x30/0x100 [87536.690047] [<ffffffff81133ee5>] perf_release+0x15/0x20 [87536.696292] [<ffffffff811b69fc>] __fput+0xdc/0x1e0 [87536.702191] [<ffffffff811b6b4e>] ____fput+0xe/0x10 [87536.708038] [<ffffffff81085154>] task_work_run+0xc4/0xe0 [87536.714503] [<ffffffff81066d5c>] do_exit+0x2cc/0xa50 [87536.720546] [<ffffffff81076949>] ? get_signal_to_deliver+0x249/0x650 [87536.728117] [<ffffffff8106756c>] do_group_exit+0x4c/0xc0 [87536.734480] [<ffffffff81076991>] get_signal_to_deliver+0x291/0x650 [87536.741814] [<ffffffff81012438>] do_signal+0x48/0x990 [87536.747877] [<ffffffff81090c4d>] ? finish_task_switch+0x7d/0x120 [87536.754994] [<ffffffff81651437>] ? _raw_spin_unlock_irq+0x27/0x40 [87536.762243] [<ffffffff81090c4d>] ? finish_task_switch+0x7d/0x120 [87536.769465] [<ffffffff81090c0f>] ? finish_task_switch+0x3f/0x120 [87536.776622] [<ffffffff81012df0>] do_notify_resume+0x70/0xa0 [87536.783323] [<ffffffff81651fbc>] retint_signal+0x48/0x8c [87536.789726] ---[ end trace 2b5a3d32e8d767a7 ]--- [87537.231116] ------------[ cut here ]------------ [87537.238622] WARNING: CPU: 1 PID: 5694 at lib/list_debug.c:59 __list_del_entry+0xa1/0xd0() [87537.250022] list_del corruption. prev->next should be ffff88003697d010, but was 6b6b6b6b6b6b6b6b [87537.262134] Modules linked in: fuse x86_pkg_temp_thermal intel_powerclamp coretemp kvm snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_generic i915 aesni_intel snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device tpm_tis ppdev snd aes_x86_64 parport_pc tpm evdev mei_me drm_kms_helper iTCO_wdt drm soundcore lrw gf128mul glue_helper iTCO_vendor_support wmi ablk_helper i2c_algo_bit button battery processor mei psmouse parport pcspkr serio_raw cryptd i2c_i801 video i2c_core lpc_ich mfd_core sd_mod sr_mod crc_t10dif cdrom crct10dif_common ahci libahci ehci_pci e1000e libata xhci_hcd ehci_hcd ptp crc32c_intel usbcore scsi_mod pps_core usb_common fan thermal thermal_sys [87537.350071] CPU: 1 PID: 5694 Comm: perf_fuzzer Tainted: G W 3.15.0-rc1+ #104 [87537.362120] Hardware name: LENOVO 10AM000AUS/SHARKBAY, BIOS FBKT72AUS 01/26/2014 [87537.373623] 0000000000000009 ffff88011780bad8 ffffffff81649ca0 ffff88011780bb20 [87537.385332] ffff88011780bb10 ffffffff810646ad ffff88003697d000 ffff8800cf2bd000 [87537.397049] ffff88003697d010 ffff88003697d000 0000000000000001 ffff88011780bb70 [87537.408852] Call Trace: [87537.415220] [<ffffffff81649ca0>] dump_stack+0x45/0x56 [87537.424550] [<ffffffff810646ad>] warn_slowpath_common+0x7d/0xa0 [87537.434876] [<ffffffff8106471c>] warn_slowpath_fmt+0x4c/0x50 [87537.444923] [<ffffffff813c9fe1>] __list_del_entry+0xa1/0xd0 [87537.454848] [<ffffffff81131ec4>] list_del_event+0xe4/0xf0 [87537.464638] [<ffffffff811326c0>] perf_remove_from_context+0xb0/0x120 [87537.475461] [<ffffffff81133d8f>] perf_event_release_kernel+0x3f/0x80 [87537.486265] [<ffffffff81133ea3>] put_event+0xd3/0x100 [87537.495776] [<ffffffff81133e00>] ? put_event+0x30/0x100 [87537.505405] [<ffffffff81133ee5>] perf_release+0x15/0x20 [87537.515112] [<ffffffff811b69fc>] __fput+0xdc/0x1e0 [87537.524426] [<ffffffff811b6b4e>] ____fput+0xe/0x10 [87537.533695] [<ffffffff81085154>] task_work_run+0xc4/0xe0 [87537.543618] [<ffffffff81066d5c>] do_exit+0x2cc/0xa50 [87537.553129] [<ffffffff81076949>] ? get_signal_to_deliver+0x249/0x650 [87537.564205] [<ffffffff8106756c>] do_group_exit+0x4c/0xc0 [87537.574142] [<ffffffff81076991>] get_signal_to_deliver+0x291/0x650 [87537.585042] [<ffffffff81012438>] do_signal+0x48/0x990 [87537.594644] [<ffffffff81090c4d>] ? finish_task_switch+0x7d/0x120 [87537.605102] [<ffffffff81651437>] ? _raw_spin_unlock_irq+0x27/0x40 [87537.615521] [<ffffffff81090c0f>] ? finish_task_switch+0x3f/0x120 [87537.625663] [<ffffffff81012df0>] do_notify_resume+0x70/0xa0 [87537.635166] [<ffffffff81651fbc>] retint_signal+0x48/0x8c [87537.644367] ---[ end trace 2b5a3d32e8d767a8 ]--- [87541.568852] ------------[ cut here ]------------ [87541.577199] WARNING: CPU: 1 PID: 5694 at lib/list_debug.c:59 __list_del_entry+0xa1/0xd0() [87541.589363] list_del corruption. prev->next should be ffff8800cdfed810, but was 6b6b6b6b6b6b6b6b [87541.602267] Modules linked in: fuse x86_pkg_temp_thermal intel_powerclamp coretemp kvm snd_hda_codec_hdmi crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_realtek snd_hda_codec_generic i915 aesni_intel snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_seq snd_timer snd_seq_device tpm_tis ppdev snd aes_x86_64 parport_pc tpm evdev mei_me drm_kms_helper iTCO_wdt drm soundcore lrw gf128mul glue_helper iTCO_vendor_support wmi ablk_helper i2c_algo_bit button battery processor mei psmouse parport pcspkr serio_raw cryptd i2c_i801 video i2c_core lpc_ich mfd_core sd_mod sr_mod crc_t10dif cdrom crct10dif_common ahci libahci ehci_pci e1000e libata xhci_hcd ehci_hcd ptp crc32c_intel usbcore scsi_mod pps_core usb_common fan thermal thermal_sys [87541.692626] CPU: 1 PID: 5694 Comm: perf_fuzzer Tainted: G W 3.15.0-rc1+ #104 [87541.705282] Hardware name: LENOVO 10AM000AUS/SHARKBAY, BIOS FBKT72AUS 01/26/2014 [87541.717333] 0000000000000009 ffff88011780baf8 ffffffff81649ca0 ffff88011780bb40 [87541.729445] ffff88011780bb30 ffffffff810646ad ffff8800cdfed800 ffff8800cf2bd000 [87541.741712] ffff8800cdfed810 ffff8800cdfed800 0000000000000001 ffff88011780bb90 [87541.753980] Call Trace: [87541.760749] [<ffffffff81649ca0>] dump_stack+0x45/0x56 [87541.770475] [<ffffffff810646ad>] warn_slowpath_common+0x7d/0xa0 [87541.781089] [<ffffffff8106471c>] warn_slowpath_fmt+0x4c/0x50 [87541.791465] [<ffffffff813c9fe1>] __list_del_entry+0xa1/0xd0 [87541.801773] [<ffffffff81131ec4>] list_del_event+0xe4/0xf0 [87541.811853] [<ffffffff811326c0>] perf_remove_from_context+0xb0/0x120 [87541.822965] [<ffffffff81133d8f>] perf_event_release_kernel+0x3f/0x80 [87541.834111] [<ffffffff81133ea3>] put_event+0xd3/0x100 [87541.843821] [<ffffffff81133e00>] ? put_event+0x30/0x100 [87541.853752] [<ffffffff81134e91>] __perf_event_exit_task.isra.79+0xd1/0x120 [87541.865386] [<ffffffff8113b226>] perf_event_exit_task+0x206/0x260 [87541.876240] [<ffffffff81066d69>] do_exit+0x2d9/0xa50 [87541.885869] [<ffffffff81076949>] ? get_signal_to_deliver+0x249/0x650 [87541.896974] [<ffffffff8106756c>] do_group_exit+0x4c/0xc0 [87541.907010] [<ffffffff81076991>] get_signal_to_deliver+0x291/0x650 [87541.917964] [<ffffffff81012438>] do_signal+0x48/0x990 [87541.927735] [<ffffffff81090c4d>] ? finish_task_switch+0x7d/0x120 [87541.938519] [<ffffffff81651437>] ? _raw_spin_unlock_irq+0x27/0x40 [87541.949341] [<ffffffff81090c0f>] ? finish_task_switch+0x3f/0x120 [87541.960078] [<ffffffff81012df0>] do_notify_resume+0x70/0xa0 [87541.970193] [<ffffffff81651fbc>] retint_signal+0x48/0x8c [87541.979819] ---[ end trace 2b5a3d32e8d767a9 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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