Bug 1046200

Summary: [abrt] divide error: 0000 [#1] SMP
Product: [Fedora] Fedora Reporter: fbellio
Component: kernelAssignee: Stanislaw Gruszka <sgruszka>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 20CC: fbellio, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/191af16e7de0246663ac446f352f57ce31681d65
Whiteboard: abrt_hash:312f372144c18a270601ff56977ba1a4af2034c5
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-03-17 18:45:14 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
File: dmesg none

Description fbellio 2013-12-24 04:54:37 UTC 
Additional info:
reporter:       libreport-2.1.10
divide error: 0000 [#1] SMP 
Modules linked in: binfmt_misc rfcomm fuse nf_conntrack_netbios_ns nf_conntrack_broadcast ipt_MASQUERADE ip6t_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw bnep arc4 rc_dib0700_rc5 xc4000 snd_hda_codec_hdmi snd_hda_codec_idt ath5k ath mac80211 snd_hda_intel snd_hda_codec snd_hwdep snd_seq hp_wmi kvm_amd kvm sparse_keymap dvb_usb_dib0700 dib8000 dib7000m dib0090 dib0070 btusb snd_seq_device uvcvideo videobuf2_vmalloc videobuf2_memops dib7000p bluetooth dib3000mc videobuf2_core videodev snd_pcm snd_page_alloc cfg80211 snd_timer snd soundcore dibx000_common dvb_usb microcode joydev r8169 mii serio_raw k10temp hp_accel lis3lv02d input_polldev sp5100_tco i2c_piix4 ir_lirc_codec lirc_dev ir_mce_kbd_decoder sdhci_pci ir_sanyo_decoder sdhci ir_sony_decoder ir_jvc_decoder ir_rc6_decoder ir_rc5_decoder ir_nec_decoder mmc_core rc_rc6_mce media jmb38x_ms memstick ene_ir dvb_core wmi rc_core shpchp rfkill acpi_cpufreq video nfsd auth_rpcgss nfs_acl lockd sunrpc ata_generic pata_acpi radeon firewire_ohci firewire_core pata_atiixp i2c_algo_bit drm_kms_helper crc_itu_t ttm drm i2c_core
CPU: 1 PID: 3249 Comm: kdvb-ad-0-fe-0 Not tainted 3.12.5-302.fc20.x86_64 #1
Hardware name: Hewlett-Packard HP Pavilion dv5 Notebook PC/3600, BIOS F.38 11/11/2009
task: ffff88009bcbb9c0 ti: ffff880079394000 task.ti: ffff880079394000
RIP: 0010:[<ffffffffa04dacca>]  [<ffffffffa04dacca>] dib7000p_set_frontend+0x8aa/0x1010 [dib7000p]
RSP: 0018:ffff8800793959c0  EFLAGS: 00010246
RAX: 0000000004000000 RBX: ffff8800ad896000 RCX: 0000000010624dd3
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffff8800ad8979a0
RBP: ffff880079395a18 R08: 0000000000000000 R09: ffff88013fc97340
R10: ffffea0002971280 R11: ffffffff8147a054 R12: ffff8800ad896000
R13: ffff8800ad896000 R14: 00000000fffff736 R15: 00000000000008ca
FS:  00007fba8a880700(0000) GS:ffff88013fc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 000000000251b640 CR3: 00000000a5ed7000 CR4: 00000000000007e0
Stack:
 ffff880079395a18 ffffffff816681a9 0000000000000001 ffff880138e8b840
 0000000000000000 0a721a5079395a38 ffff8800a5164c00 ffff8800ad896000
 ffff880079395a48 0000000000000002 000000000a946f60 ffff880079395c38
Call Trace:
 [<ffffffff816681a9>] ? wait_for_completion_timeout+0xf9/0x110
 [<ffffffffa02f30f4>] dvb_frontend_swzigzag_autotune+0x154/0x350 [dvb_core]
 [<ffffffffa02f3cea>] dvb_frontend_swzigzag+0x2da/0x380 [dvb_core]
 [<ffffffff810a1dc6>] ? dequeue_entity+0x106/0x520
 [<ffffffff8101a223>] ? native_sched_clock+0x13/0x80
 [<ffffffff8101a299>] ? sched_clock+0x9/0x10
 [<ffffffff810a273e>] ? dequeue_task_fair+0x41e/0x620
 [<ffffffff810115ce>] ? __switch_to+0x13e/0x4b0
 [<ffffffff8107516b>] ? lock_timer_base.isra.35+0x2b/0x50
 [<ffffffff81075fcf>] ? try_to_del_timer_sync+0x4f/0x70
 [<ffffffff81076042>] ? del_timer_sync+0x52/0x60
 [<ffffffff8166598a>] ? schedule_timeout+0x17a/0x2c0
 [<ffffffff81074de0>] ? __internal_add_timer+0x130/0x130
 [<ffffffffa02f48f8>] dvb_frontend_thread+0x4c8/0x7b0 [dvb_core]
 [<ffffffff8108be90>] ? wake_up_atomic_t+0x30/0x30
 [<ffffffffa02f4430>] ? dvb_frontend_should_wakeup.isra.2+0x80/0x80 [dvb_core]
 [<ffffffff8108b0d0>] kthread+0xc0/0xd0
 [<ffffffff8108b010>] ? insert_kthread_work+0x40/0x40
 [<ffffffff81671cbc>] ret_from_fork+0x7c/0xb0
 [<ffffffff8108b010>] ? insert_kthread_work+0x40/0x40
Code: 06 41 29 f6 c1 ea 06 41 29 d6 44 89 f0 c1 f8 1f 41 89 c7 45 31 f7 41 29 c7 4c 89 e7 e8 a0 c5 ff ff 31 d2 41 89 c0 b8 00 00 00 04 <41> f7 f0 41 89 c1 49 8b 84 24 28 05 00 00 8b 40 14 41 89 c2 c1 
RIP  [<ffffffffa04dacca>] dib7000p_set_frontend+0x8aa/0x1010 [dib7000p]
 RSP <ffff8800793959c0>
Comment 1 fbellio 2013-12-24 04:54:45 UTC 
Created attachment 841061 [details]
File: dmesg
Comment 2 Stanislaw Gruszka 2014-02-13 12:02:28 UTC 
I think this one should be fixed, does the bug still happen on updated kernel?
Comment 3 Stanislaw Gruszka 2014-02-13 13:04:54 UTC 
Actually it is not fixed, I confused it with other issue. Anyway is this bug reproducible for you, how it happen ?
Comment 4 Stanislaw Gruszka 2014-02-13 14:21:15 UTC 
Div 0 happens because internal is 0.

static void dib7000p_set_dds(struct dib7000p_state *state, s32 offset_khz)
{
        u32 internal = dib7000p_get_internal_freq(state);
        s32 unit_khz_dds_val = 67108864 / (internal);   /* 2**26 / Fsampling is the unit 1KHz offset */
Comment 5 Stanislaw Gruszka 2014-02-13 14:23:38 UTC 
fbellio, would you test patch , which I can prepare to remove this division ?
Comment 6 Justin M. Forbes 2014-03-17 18:45:14 UTC 
*********** MASS BUG UPDATE **************

This bug has been in a needinfo state for several weeks and is being closed with insufficient data due to inactivity. If this is still an issue with Fedora 20, please feel free to reopen the bug and provide the additional information requested.
Comment 7 fbellio 2014-12-29 18:54:34 UTC 
Please close this bus. Now we are on F21 I receive a e-mail every week. Why?
Thak you very much and Happy New Year.
fb