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Date: Mon, 12 May 2008 14:19:32 +0200 From: "Vegard Nossum" <vegard.nossum@...il.com> To: "Gianni Tedesco" <gxt@...nott.ac.uk> Cc: oprofile-list@...ts.sf.net, linux-kernel@...r.kernel.org, "Mike Travis" <travis@....com> Subject: Re: oprofile BUG() in current kernel. Hi, On Mon, May 12, 2008 at 2:02 PM, Gianni Tedesco <gxt@...nott.ac.uk> wrote: > This is from Linus' git tree, pulled this morning. To reproduce simply > opcontrol --start > > oprofile: using NMI interrupt. > BUG: unable to handle kernel paging request at eff86d58 > IP: [<eeb9d508>] :oprofile:alloc_cpu_buffers+0x42/0xd6 > *pde = 00000000 > Oops: 0002 [#1] SMP > Modules linked in: oprofile af_packet i915 drm binfmt_misc kvm_intel kvm cpufreq_powersave cpufreq_stats cpufreq_userspace cpufreq_ondemand cpufreq_conservative sbs fan sbshc iptable_filter ip_tables x_tables ipcomp authenc esp4 aead ah4 xfrm4_mode_transport deflate zlib_deflate zlib_inflate ctr twofish twofish_common camellia serpent blowfish des_generic cbc aes_i586 aes_generic xcbc sha256_generic sha1_generic md5 hmac crypto_hash crypto_null af_key sierra usbserial snd_usb_audio snd_usb_lib snd_hwdep fuse arc4 ecb crypto_blkcipher cryptomgr crypto_algapi snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq yenta_socket iwl3945 mac80211 rsrc_nonstatic ehci_hcd snd_timer snd_seq_device uhci_hcd cfg80211 snd pcmcia_core usbcore soundcore snd_page_alloc battery ac thinkpad_acpi backlight button led_class thermal evdev nvram > > Pid: 4589, comm: oprofiled Not tainted (2.6.26-rc2 #37) > EIP: 0060:[<eeb9d508>] EFLAGS: 00010286 CPU: 1 > EIP is at alloc_cpu_buffers+0x42/0xd6 [oprofile] > EAX: eeba5000 EBX: eff86d40 ECX: eeb9d506 EDX: 00000000 > ESI: 00000000 EDI: eeba2d40 EBP: 00002000 ESP: e6824e94 > DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 > Process oprofiled (pid: 4589, ti=e6824000 task=ed109560 task.ti=e6824000) > Stack: 00010000 ffffffea d04eaec0 e6824f14 eeb9dcc5 eeb9d114 ffffffea d04eaec0 > eeb9dcfe d04eaec0 d0d7fcf4 b0158a50 ec9379c0 d0ddbc6c e6824f14 d04eaec0 > e6824f14 00000001 b0158b55 d04eaec0 00000000 00000000 e6824f14 b01628fd > Call Trace: > [<eeb9dcc5>] event_buffer_open+0x0/0x55 [oprofile] > [<eeb9d114>] oprofile_setup+0x11/0x85 [oprofile] > [<eeb9dcfe>] event_buffer_open+0x39/0x55 [oprofile] > [<b0158a50>] __dentry_open+0xfd/0x1e6 > [<b0158b55>] nameidata_to_filp+0x1c/0x2c > [<b01628fd>] do_filp_open+0x31c/0x676 > [<b014a4cc>] handle_mm_fault+0x1c6/0x48d > [<b0158875>] do_sys_open+0x3d/0xb5 > [<b0111723>] do_page_fault+0x206/0x523 > [<b0158931>] sys_open+0x1e/0x23 > [<b0102a79>] sysenter_past_esp+0x6a/0x91 > [<b02e0000>] lock_kernel+0x2f/0x31 > ======================= > Code: e8 db 77 63 c1 89 c6 8d 04 ed 00 00 00 00 89 04 24 e9 8b 00 00 00 8b 04 24 31 d2 89 fb 03 1c b5 80 de 39 b0 e8 9d 28 5b c1 85 c0 <89> 43 18 74 7e 8d 43 34 c7 43 04 00 00 00 00 89 73 2c 89 43 34 > EIP: [<eeb9d508>] alloc_cpu_buffers+0x42/0xd6 [oprofile] SS:ESP > 0068:e6824e94 > ---[ end trace dda7923c8b798701 ]--- This looks similar to: http://www.uwsg.iu.edu/hypermail/linux/kernel/0805.0/2845.html Does reverting 608dfddd845da5ab6accef70154c8910529699f7 fix it for you too? Vegard -- "The animistic metaphor of the bug that maliciously sneaked in while the programmer was not looking is intellectually dishonest as it disguises that the error is the programmer's own creation." -- E. W. Dijkstra, EWD1036 -- 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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