Description of problem: I was running ddrescue overnight on a faulty DVD. The only other peocess running were system processes (Kernel, KDM, KDE, X-server, etc.), gkrellm, and a terminal window. The stuck CPU message was reported twice; once ~2AM for CPU#3, and again ~3AM for CPU#1. (The system has 4 CPUs.) Note that this is on a (mostly current) Rawhide system using kernel 3.12.0-0.rc0.git21.1.fc21.x86_64. Additional info: reporter: libreport-2.1.6 BUG: soft lockup - CPU#1 stuck for 22s! [X:622] Modules linked in: udf crc_itu_t udp_diag tcp_diag inet_diag ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_CHECKSUM iptable_mangle tun bridge stp llc ebtable_nat ebtables fuse md4 nls_utf8 cifs dns_resolver fscache bnep bluetooth ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_netbios_ns nf_conntrack_broadcast ip6table_filter nf_conntrack_ipv4 nf_defrag_ipv4 ip6_tables xt_conntrack nf_conntrack it87 hwmon_vid joydev btrfs snd_hda_codec_hdmi kvm_amd kvm raid6_pq libcrc32c microcode xor arc4 snd_hda_codec_realtek rt2800pci rt2800lib rt2x00pci rt2x00mmio rt2x00lib snd_hda_intel snd_hda_codec snd_hwdep eeprom_93cx6 snd_seq snd_seq_device snd_pcm mac80211 hid_gyration serio_raw edac_core edac_mce_amd sp5100_tco k10temp snd_page_alloc i2c_piix4 snd_timer snd cfg80211 crc_ccitt rfkill r8169 mii soundcore shpchp wmi acpi_cpufreq nfsd auth_rpcgss nfs_acl lockd sunrpc binfmt_misc raid1 radeon i2c_algo_bit drm_kms_helper ttm drm i2c_core usb_storage irq event stamp: 3256928626 hardirqs last enabled at (3256928625): [<ffffffff81748233>] restore_args+0x0/0x30 hardirqs last disabled at (3256928626): [<ffffffff817520ad>] apic_timer_interrupt+0x6d/0x80 softirqs last enabled at (3256928624): [<ffffffff8107c981>] __do_softirq+0x1a1/0x410 softirqs last disabled at (3256925889): [<ffffffff8107cdc5>] irq_exit+0xc5/0xd0 CPU: 1 PID: 622 Comm: X Not tainted 3.12.0-0.rc0.git21.1.fc21.x86_64 #1 Hardware name: Hewlett-Packard p6710f/2AB1 , BIOS 6.07 05/04/2011 task: ffff8802ebb0ae40 ti: ffff8802eb632000 task.ti: ffff8802eb632000 RIP: 0010:[<ffffffff810e56c4>] [<ffffffff810e56c4>] lock_is_held+0x54/0x70 RSP: 0018:ffff8802eb633880 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8802eb633808 RCX: 000000000000000f RDX: 0000000000000000 RSI: ffffffff81c48020 RDI: 0000000000000246 RBP: ffff8802eb633890 R08: ffff88030a259ec0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8802eb632000 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f690bcbb9c0(0000) GS:ffff880313000000(0000) knlGS:00000000f7790880 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000392f477590 CR3: 000000030bfc5000 CR4: 00000000000007e0 Stack: ffffffffa020b0e8 ffffffffa00b867c ffff8802eb6338b8 ffffffff810f5bd9 ffffffffa020b0e8 ffffffffa00b867c 0000000000000000 ffff8802eb6338d0 ffffffff810f5c32 ffffffffa00b867c ffff8802eb6338e0 ffffffff810fa52e Call Trace: [<ffffffffa00b867c>] ? radeon_bo_create+0x16c/0x2c0 [radeon] [<ffffffff810f5bd9>] __module_address+0xe9/0x130 [<ffffffffa00b867c>] ? radeon_bo_create+0x16c/0x2c0 [radeon] [<ffffffff810f5c32>] __module_text_address+0x12/0x60 [<ffffffffa00b867c>] ? radeon_bo_create+0x16c/0x2c0 [radeon] [<ffffffff810fa52e>] is_module_text_address+0x1e/0x40 [<ffffffff8109e068>] __kernel_text_address+0x58/0x80 [<ffffffffa00b867c>] ? radeon_bo_create+0x16c/0x2c0 [radeon] [<ffffffff8101ce9f>] print_context_stack+0x8f/0x100 [<ffffffff8101bc9f>] dump_trace+0x17f/0x2d0 [<ffffffff810e82dd>] ? trace_hardirqs_on_caller+0xfd/0x1c0 [<ffffffff810288db>] save_stack_trace+0x2b/0x50 [<ffffffff8139d5d9>] dma_entry_alloc+0x59/0x90 [<ffffffff8139dcf1>] debug_dma_map_page+0x91/0x140 [<ffffffffa00b77a5>] radeon_ttm_tt_populate+0x155/0x2d0 [radeon] [<ffffffffa0086d0e>] ttm_tt_bind+0x3e/0x70 [ttm] [<ffffffffa008908f>] ttm_bo_handle_move_mem+0x52f/0x5b0 [ttm] [<ffffffffa00897b9>] ? ttm_bo_mem_space+0x169/0x340 [ttm] [<ffffffffa0089d87>] ttm_bo_move_buffer+0x167/0x180 [ttm] [<ffffffff810e5267>] ? __lock_is_held+0x57/0x80 [<ffffffffa0089e4f>] ttm_bo_validate+0xaf/0x160 [ttm] [<ffffffffa008a15a>] ttm_bo_init+0x25a/0x420 [ttm] [<ffffffffa00b867c>] radeon_bo_create+0x16c/0x2c0 [radeon] [<ffffffffa00b8370>] ? radeon_bo_clear_va+0x60/0x60 [radeon] [<ffffffffa00cb003>] radeon_gem_object_create+0xa3/0x180 [radeon] [<ffffffffa00cb570>] radeon_gem_create_ioctl+0x60/0x160 [radeon] [<ffffffffa002d102>] drm_ioctl+0x532/0x670 [drm] [<ffffffff8130be66>] ? inode_has_perm.isra.49.constprop.65+0x56/0x80 [<ffffffff812098d5>] do_vfs_ioctl+0x305/0x530 [<ffffffff8130c2fb>] ? selinux_file_ioctl+0x5b/0x110 [<ffffffff81209b81>] SyS_ioctl+0x81/0xa0 [<ffffffff81751419>] system_call_fastpath+0x16/0x1b Code: 66 90 65 48 8b 1c 25 80 c9 00 00 c7 83 34 08 00 00 01 00 00 00 e8 5d fb ff ff c7 83 34 08 00 00 00 00 00 00 89 c2 4c 89 e7 57 9d <66> 66 90 66 90 5b 41 5c 89 d0 5d c3 b8 01 00 00 00 c3 66 2e 0f
Created attachment 797925 [details] File: dmesg
This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle. Changing version to '22'. More information and reason for this action is here: https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.