This bug was fixed in the package linux - 4.15.0-10.11
---------------
linux (4.15.0-10.11) bionic; urgency=medium
* linux: 4.15.0-10.11 -proposed tracker (LP: #1749250)
* "swiotlb: coherent allocation failed" dmesg spam with linux 4.15.0-9.10
(LP: #1749202)
- swiotlb: suppress warning when __GFP_NOWARN is set
- drm/ttm: specify DMA_ATTR_NO_WARN for huge page pools
* linux-tools: perf incorrectly linking libbfd (LP: #1748922)
- SAUCE: tools -- add ability to disable libbfd
- [Packaging] correct disablement of libbfd
* [Artful] Realtek ALC225: 2 secs noise when a headset plugged in
(LP: #1744058)
- ALSA: hda/realtek - update ALC225 depop optimize
* [Artful] Support headset mode for DELL WYSE (LP: #1723913)
- SAUCE: ALSA: hda/realtek - Add support headset mode for DELL WYSE
* headset mic can't be detected on two Dell machines (LP: #1748807)
- ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289
- ALSA: hda - Fix headset mic detection problem for two Dell machines
* Bionic update to v4.15.3 stable release (LP: #1749191)
- ip6mr: fix stale iterator
- net: igmp: add a missing rcu locking section
- qlcnic: fix deadlock bug
- qmi_wwan: Add support for Quectel EP06
- r8169: fix RTL8168EP take too long to complete driver initialization.
- tcp: release sk_frag.page in tcp_disconnect
- vhost_net: stop device during reset owner
- ipv6: addrconf: break critical section in addrconf_verify_rtnl()
- ipv6: change route cache aging logic
- Revert "defer call to mem_cgroup_sk_alloc()"
- net: ipv6: send unsolicited NA after DAD
- rocker: fix possible null pointer dereference in
rocker_router_fib_event_work
- tcp_bbr: fix pacing_gain to always be unity when using lt_bw
- cls_u32: add missing RCU annotation.
- ipv6: Fix SO_REUSEPORT UDP socket with implicit sk_ipv6only
- soreuseport: fix mem leak in reuseport_add_sock()
- net_sched: get rid of rcu_barrier() in tcf_block_put_ext()
- net: sched: fix use-after-free in tcf_block_put_ext
- media: mtk-vcodec: add missing MODULE_LICENSE/DESCRIPTION
- media: soc_camera: soc_scale_crop: add missing
MODULE_DESCRIPTION/AUTHOR/LICENSE
- media: tegra-cec: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
- gpio: uniphier: fix mismatch between license text and MODULE_LICENSE
- crypto: tcrypt - fix S/G table for test_aead_speed()
- Linux 4.15.3
* bnx2x_attn_int_deasserted3:4323 MC assert! (LP: #1715519) //
CVE-2018-1000026
- net: create skb_gso_validate_mac_len()
- bnx2x: disable GSO where gso_size is too big for hardware
* ethtool -p fails to light NIC LED on HiSilicon D05 systems (LP: #1748567)
- net: hns: add ACPI mode support for ethtool -p
* CVE-2017-5715 (Spectre v2 Intel)
- [Packaging] retpoline files must be sorted
- [Packaging] pull in retpoline files
* [Feature] PXE boot with Intel Omni-Path (LP: #1712031)
- d-i: Add hfi1 to nic-modules
* CVE-2017-5715 (Spectre v2 retpoline)
- [Packaging] retpoline -- add call site validation
- [Config] disable retpoline checks for first upload
* Do not duplicate changelog entries assigned to more than one bug or CVE
(LP: #1743383)
- [Packaging] git-ubuntu-log -- handle multiple bugs/cves better
-- Seth Forshee <seth.fors...@canonical.com> Tue, 13 Feb 2018 11:33:58
-0600
** Changed in: linux (Ubuntu)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2017-5715
** CVE added: https://cve.mitre.org/cgi-
bin/cvename.cgi?name=2018-1000026
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https://bugs.launchpad.net/bugs/1749202
Title:
"swiotlb: coherent allocation failed" dmesg spam with linux
4.15.0-9.10
Status in linux package in Ubuntu:
Fix Released
Bug description:
I'm seeing this appear fairly regularly in dmesg:
[23630.791701] nouveau 0000:02:00.0: swiotlb buffer is full (sz: 2097152
bytes)
[23630.791703] swiotlb: coherent allocation failed for device 0000:02:00.0
size=2097152
[23630.791706] CPU: 12 PID: 2609 Comm: gnome-shell Not tainted
4.15.0-9-generic #10-Ubuntu
[23630.791709] Hardware name: Intel Corp. GRANTLEY/GRANTLEY, BIOS
GRNDCRB1.86B.0032.R02.1405090848 05/09/2014
[23630.791710] Call Trace:
[23630.791718] dump_stack+0x63/0x8b
[23630.791723] swiotlb_alloc_coherent+0xe8/0x160
[23630.791728] x86_swiotlb_alloc_coherent+0x43/0x50
[23630.791734] ttm_dma_pool_get_pages+0x1f1/0x5b0 [ttm]
[23630.791737] ttm_dma_populate+0x249/0x330 [ttm]
[23630.791770] nouveau_ttm_tt_populate+0x156/0x1f0 [nouveau]
[23630.791773] ttm_tt_bind+0x2e/0x60 [ttm]
[23630.791776] ttm_bo_handle_move_mem+0x589/0x5c0 [ttm]
[23630.791779] ? ttm_bo_mem_space+0x39d/0x470 [ttm]
[23630.791782] ttm_bo_validate+0x144/0x160 [ttm]
[23630.791784] ttm_bo_init_reserved+0x393/0x430 [ttm]
[23630.791787] ttm_bo_init+0x2d/0x90 [ttm]
[23630.791808] ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau]
[23630.791827] nouveau_bo_new+0x40c/0x580 [nouveau]
[23630.791847] ? nouveau_bo_invalidate_caches+0x10/0x10 [nouveau]
[23630.791866] nouveau_gem_new+0x60/0x130 [nouveau]
[23630.791883] nouveau_gem_ioctl_new+0x59/0xe0 [nouveau]
[23630.791899] ? nouveau_gem_new+0x130/0x130 [nouveau]
[23630.791912] drm_ioctl_kernel+0x5f/0xb0 [drm]
[23630.791919] drm_ioctl+0x31b/0x3d0 [drm]
[23630.791936] ? nouveau_gem_new+0x130/0x130 [nouveau]
[23630.791954] nouveau_drm_ioctl+0x72/0xc0 [nouveau]
[23630.791957] do_vfs_ioctl+0xa8/0x630
[23630.791961] ? __sys_recvmsg+0x80/0x90
[23630.791964] SyS_ioctl+0x79/0x90
[23630.791967] do_syscall_64+0x76/0x130
[23630.791971] entry_SYSCALL_64_after_hwframe+0x21/0x86
[23630.791972] RIP: 0033:0x7f26f5357ea7
[23630.791973] RSP: 002b:00007ffe50c20ee8 EFLAGS: 00000246 ORIG_RAX:
0000000000000010
[23630.791975] RAX: ffffffffffffffda RBX: 00005570b6b1b490 RCX:
00007f26f5357ea7
[23630.791975] RDX: 00007ffe50c20f40 RSI: 00000000c0306480 RDI:
000000000000000b
[23630.791976] RBP: 00007ffe50c20f40 R08: 0000000000000004 R09:
00005570b6b1b490
[23630.791977] R10: 0000000000000030 R11: 0000000000000246 R12:
00000000c0306480
[23630.791977] R13: 000000000000000b R14: 00005570b6ad5b88 R15:
00005570b0ad0690
This seems to be due to an attempt to allocate using huge pages, which
has a fallback to allocating normal pages. There are patches in
4.16-rc1 to suppress this spam; backport them to bionic.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1749202/+subscriptions
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