From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; it-IT; rv:1.7.6) Gecko/20050318 Firefox/1.0.2 Description of problem: i was copying a disk partition using nc and dd (server: nc -l -p 4000 > image, client: dd if=/dev/hda2 | nc server -p 4000) during this operation the following messages appeared in /var/log/messages of the server machine (but the above copy completed successfully) NOTE: this server actually is not SMP, is a single HT Pentium IV Apr 18 16:13:54 fileserver kernel: ------------[ cut here ]------------ Apr 18 16:13:54 fileserver kernel: kernel BUG at include/asm/spinlock.h:136! Apr 18 16:13:54 fileserver kernel: invalid operand: 0000 [#1] Apr 18 16:13:54 fileserver kernel: SMP Apr 18 16:13:54 fileserver kernel: Modules linked in: nls_utf8 vfat fat usb_storage parport_pc lp parport md5 ipv6 autofs4 dm_mod video button battery ac uhc i_hcd ehci_hcd i2c_i801 i2c_core e1000 floppy xfs exportfs raid1 ata_piix libata sd_mod scsi_mod Apr 18 16:13:54 fileserver kernel: CPU: 0 Apr 18 16:13:54 fileserver kernel: EIP: 0060:[<c0300e44>] Not tainted VLI Apr 18 16:13:54 fileserver kernel: EFLAGS: 00010096 (2.6.11-1.14_FC3smp) Apr 18 16:13:54 fileserver kernel: EIP is at _spin_lock+0x36/0x40 Apr 18 16:13:54 fileserver kernel: eax: 0000000e ebx: c159201c ecx: c035878c edx: 00000000 Apr 18 16:13:54 fileserver kernel: esi: cfb3f98c edi: cde22678 ebp: cde22684 esp: cfdfaf94 Apr 18 16:13:54 fileserver kernel: ds: 007b es: 007b ss: 0068 Apr 18 16:13:54 fileserver kernel: Process pdflush (pid: 188, threadinfo=cfdfa000 task=cf816aa0) Apr 18 16:13:55 fileserver kernel: Stack: c0317f5f c024c5be c6efcdf8 c024c5be 00000286 ce913af4 cf9e8d88 cf816aa0 Apr 18 16:13:55 fileserver kernel: 00000000 00000000 c02454d7 cfdfa000 c0123e4f 00000000 c0145584 c0133e28 Apr 18 16:13:55 fileserver kernel: 00000000 ffffffff c0133d96 00000000 00000000 00000000 c01022ff 00000000 Apr 18 16:13:55 fileserver kernel: Call Trace: Apr 18 16:13:55 fileserver kernel: [<c024c5be>] cfq_exit_io_context+0x54/0xb3 Apr 18 16:13:55 fileserver kernel: [<c024c5be>] cfq_exit_io_context+0x54/0xb3 Apr 18 16:13:55 fileserver kernel: [<c02454d7>] exit_io_context+0x45/0x52 Apr 18 16:13:55 fileserver kernel: [<c0123e4f>] do_exit+0x314/0x338 Apr 18 16:13:55 fileserver kernel: [<c0145584>] pdflush+0x0/0x1e Apr 18 16:13:55 fileserver kernel: [<c0133e28>] kthread+0x92/0xb2 Apr 18 16:13:55 fileserver kernel: [<c0133d96>] kthread+0x0/0xb2 Apr 18 16:13:55 fileserver kernel: [<c01022ff>] kernel_thread+0x0/0x84 Apr 18 16:13:55 fileserver kernel: Code: ad de 75 13 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb f2 83 c4 08 5b c3 8b 44 24 0c c7 04 24 5f 7f 31 c0 89 44 24 04 e8 5e 0a e2 ff <0f> 0b 88 00 14 77 31 c0 eb cf 81 78 04 ed 1e af de 75 0f f0 81 Version-Release number of selected component (if applicable): kernel 2.6.11-1.14_FC3smp How reproducible: Didn't try Additional info:
I've seen something similar with this kernel version. eip: c024c5ed ------------[ cut here ]------------ kernel BUG at include/asm/spinlock.h:136! invalid operand: 0000 [#1] SMP Modules linked in: vfat fat radeon md5 ipv6 parport_pc lp parport autofs4 sunrpc pcmcia ipt_REJECT ipt_state ip_conntrack iptable_filter ip_tables nls_utf8 ntfs(U) sd_mod dm_mod video button battery ac ohci1394 ieee1394 yenta_socket rsrc_nonstatic pcmcia_core usb_storage scsi_mod ohci_hcd ehci_hcd snd_atiixp_modem snd_atiixp snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc 8139too mii ext3 jbd CPU: 0 EIP: 0060:[<c0300e44>] Not tainted VLI EFLAGS: 00010086 (2.6.11-1.14_FC3smp) EIP is at _spin_lock+0x36/0x40 eax: 0000000e ebx: d843ec1c ecx: c035878c edx: 00000000 esi: de51a02c edi: c164bd50 ebp: c164bd5c esp: de962e60 ds: 007b es: 007b ss: 0068 Process gam_server (pid: 6164, threadinfo=de962000 task=cd3b9aa0) Stack: c0317f5f c024c5ed c164b498 c024c5ed 00000296 d2519d64 c1643b68 cd3b9aa0 de962000 00000006 c02454d7 de962000 c0123e4f 00000006 d11c4178 c012aebf 00000000 de962f28 00000006 c1615e80 de962000 00000006 c0123ec8 00000006 Call Trace: [<c024c5ed>] cfq_exit_io_context+0x83/0xb3 [<c024c5ed>] cfq_exit_io_context+0x83/0xb3 [<c02454d7>] exit_io_context+0x45/0x52 [<c0123e4f>] do_exit+0x314/0x338 [<c012aebf>] __dequeue_signal+0xe5/0x148 [<c0123ec8>] do_group_exit+0x29/0x90 [<c012c809>] get_signal_to_deliver+0x25d/0x36a [<c0103d36>] do_signal+0x5a/0x101 [<c012afc1>] signal_wake_up+0x1e/0x32 [<c012b45c>] specific_send_sig_info+0xa7/0xb6 [<c02f9b75>] unix_release_sock+0x18f/0x257 [<c015e6f8>] invalidate_inode_buffers+0xa/0x5d [<c0173a9d>] clear_inode+0x62/0x142 [<c018ac5a>] dnotify_parent+0x1f/0x75 [<c012c996>] sigprocmask+0x6c/0xc8 [<c012ca3c>] sys_rt_sigprocmask+0x4a/0xc7 [<c0103e14>] do_notify_resume+0x37/0x3b [<c0103f5a>] work_notifysig+0x13/0x15 Code: ad de 75 13 f0 fe 0b 79 09 f3 90 80 3b 00 7e f9 eb f2 83 c4 08 5b c3 8b 44 24 0c c7 04 24 5f 7f 31 c0 89 44 24 04 e8 5e 0a e2 ff <0f> 0b 88 00 14 77 31 c0 eb cf 81 78 04 ed 1e af de 75 0f f0 81
can you give the test kernel at http://people.redhat.com/davej/kernels/Fedora/FC3/ a try please ? This should be going out to updates-testing in the next day or so.
I've give it a whirl some time in the week if possible. For additional info, I'm running a single P4 (no HyperThreading). Use the SMP kernel as the uniprocessor builds don't appear to have IO-APIC support for uniprocessors (and I need this for correct IRQ routing).
An update has been released for Fedora Core 3 (kernel-2.6.12-1.1372_FC3) which may contain a fix for your problem. Please update to this new kernel, and report whether or not it fixes your problem. If you have updated to Fedora Core 4 since this bug was opened, and the problem still occurs with the latest updates for that release, please change the version field of this bug to 'fc4'. Thank you.