http://bugzilla.opensuse.org/show_bug.cgi?id=997574 Bug ID: 997574 Summary: (zram / swap?) BUG: unable to handle kernel paging request at ffffea00ffffff00 Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: SUSE Other Status: NEW Severity: Critical Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: sebastian.kratz@piraten-ahoi.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.9) Gecko/20100101 Goanna/2.1 Firefox/38.9 PaleMoon/26.4.0.1 Build Identifier: just had a full system crash with the following message and about 800 mb ram free with about 1 Gb usage of swap in zswap. i tried opening an image in firefox. can't reproduce yet. Sep 07 11:06:21 crest kernel: BUG: unable to handle kernel paging request at ffffea00ffffff00 Sep 07 11:06:22 crest kernel: IP: [<ffffffff81209c74>] obj_malloc+0x44/0x110 Sep 07 11:06:22 crest kernel: PGD 19f7e2067 PUD 0 Sep 07 11:06:22 crest kernel: Oops: 0000 [#1] PREEMPT SMP Sep 07 11:06:22 crest kernel: Modules linked in: overlay xts gf128mul arc4 md4 md5 nls_utf8 cifs dns_resolver fscache fuse zram lz4_compress nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG xt_limit af_packet iscsi_ibft iscsi_boot_sysfs msr dm_crypt algif_skcipher af_alg snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep dm_mod snd_pcm snd_timer coretemp r8169 iTCO_wdt snd iTCO_vendor_support gpio_ich joydev soundcore kvm_intel lpc_ich mii mfd_core kvm acpi_cpufreq ppdev ip6t_REJECT tpm_tis fjes parport_pc button nf_reject_ipv6 tpm parport shpchp i2c_i801 xt_tcpudp irqbypass nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT nf_reject_ipv4 iptable_raw xt_CT iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 Sep 07 11:06:22 crest kernel: nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter ip6_tables x_tables btrfs xor raid6_pq hid_generic usbhid uas usb_storage ata_generic ata_piix amdkfd amd_iommu_v2 serio_raw radeon i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ehci_pci uhci_hcd ehci_hcd usbcore usb_common sg Sep 07 11:06:22 crest kernel: CPU: 1 PID: 38 Comm: kswapd0 Not tainted 4.7.2-1-default #1 Sep 07 11:06:22 crest kernel: Hardware name: FUJITSU ESPRIMO P2560 /D3041-A1, BIOS 6.00 R1.02.3041.A1 11/09/2010 Sep 07 11:06:22 crest kernel: task: ffff8800db6da080 ti: ffff8800db6dc000 task.ti: ffff8800db6dc000 Sep 07 11:06:22 crest kernel: RIP: 0010:[<ffffffff81209c74>] [<ffffffff81209c74>] obj_malloc+0x44/0x110 Sep 07 11:06:22 crest kernel: RSP: 0000:ffff8800db6df8b0 EFLAGS: 00010286 Sep 07 11:06:22 crest kernel: RAX: 00ffffff00ffffff RBX: ffffea0001698080 RCX: ffffea00ffffff00 Sep 07 11:06:22 crest kernel: RDX: ffff88013e26a7a1 RSI: ffffea0000000000 RDI: 0000000000000060 Sep 07 11:06:22 crest kernel: RBP: ffff8800d2626540 R08: 00000000007fffff R09: 0000000000000000 Sep 07 11:06:22 crest kernel: R10: ffff8800d19f4039 R11: 000000000000003c R12: ffff88013e26a7a0 Sep 07 11:06:22 crest kernel: R13: ffff88013e26a7a0 R14: ffff8800d2626540 R15: 0000000000000000 Sep 07 11:06:22 crest kernel: FS: 0000000000000000(0000) GS:ffff88019fd00000(0000) knlGS:0000000000000000 Sep 07 11:06:22 crest kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 07 11:06:22 crest kernel: CR2: ffffea00ffffff00 CR3: 0000000053b94000 CR4: 00000000000406e0 Sep 07 11:06:22 crest kernel: Stack: Sep 07 11:06:22 crest kernel: ffff8800db6da080 0000000002000202 ffff880195acac80 ffffffff8120a917 Sep 07 11:06:22 crest kernel: ffffea0001698080 ffff8800d19f4000 ffff88011a864ffe 0000000000001000 Sep 07 11:06:22 crest kernel: ffff880198a1f300 0000000000000000 ffff8800db6df9a8 ffff8800db6da080 Sep 07 11:06:22 crest kernel: Call Trace: Sep 07 11:06:22 crest kernel: [<ffffffff8120a917>] zs_malloc+0xa7/0x3f0 Sep 07 11:06:22 crest kernel: [<ffffffffa07d01d8>] zram_bvec_rw+0x4b8/0x9d0 [zram] Sep 07 11:06:22 crest kernel: [<ffffffffa07d07ad>] zram_rw_page+0xbd/0x120 [zram] Sep 07 11:06:22 crest kernel: [<ffffffff812488e5>] bdev_write_page+0xa5/0xf0 Sep 07 11:06:22 crest kernel: [<ffffffff811d51b3>] __swap_writepage+0x163/0x290 Sep 07 11:06:22 crest kernel: [<ffffffff811a1b58>] pageout.isra.42+0x158/0x270 Sep 07 11:06:22 crest kernel: [<ffffffff811a3ef1>] shrink_page_list+0x7b1/0x8b0 Sep 07 11:06:22 crest kernel: [<ffffffff811a464f>] shrink_inactive_list+0x1df/0x4e0 Sep 07 11:06:22 crest kernel: [<ffffffff811a5206>] shrink_zone_memcg+0x546/0x6c0 Sep 07 11:06:22 crest kernel: [<ffffffff811a545a>] shrink_zone+0xda/0x2f0 Sep 07 11:06:22 crest kernel: [<ffffffff811a668d>] kswapd+0x50d/0x850 Sep 07 11:06:22 crest kernel: [<ffffffff8109affd>] kthread+0xbd/0xe0 Sep 07 11:06:22 crest kernel: [<ffffffff816bb71f>] ret_from_fork+0x1f/0x40 Sep 07 11:06:22 crest kernel: DWARF2 unwinder stuck at ret_from_fork+0x1f/0x40 Sep 07 11:06:22 crest kernel: Sep 07 11:06:22 crest kernel: Leftover inexact backtrace: Sep 07 11:06:22 crest kernel: [<ffffffff8109af40>] ? kthread_worker_fn+0x170/0x170 Sep 07 11:06:22 crest kernel: Code: 8b 46 10 48 be 00 00 00 00 00 ea ff ff 8b 7f 18 48 89 c1 49 89 c0 48 c1 e9 1e 49 d1 e8 48 c1 e1 06 41 81 e0 ff ff ff 1f 48 01 f1 <48> 8b 31 f7 c6 00 08 00 00 75 04 4c 8b 49 10 65 ff 05 06 37 e0 Sep 07 11:06:22 crest kernel: RIP [<ffffffff81209c74>] obj_malloc+0x44/0x110 Reproducible: Didn't try -- You are receiving this mail because: You are on the CC list for the bug.