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Tasklist

FS#57213 - iwlwifi: swiotlb buffer is full - DMA: Out of SW-IOMMU space for 4096 bytes

Attached to Project: Arch Linux
Opened by Prem Anand (hprem) - Wednesday, 24 January 2018, 10:03 GMT
Last edited by Doug Newgard (Scimmia) - Tuesday, 13 February 2018, 13:28 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To No-one
Architecture x86_64
Severity High
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:
Every couple of days, wireless stops working and I can unload/load iwlwifi module
Turning off and then back on the wireless radio, I see the following logs

Logs:
Jan 24 09:47:38 prem-lnx NetworkManager[1016]: <info> [1516787258.5298] manager: rfkill: WiFi hardware radio set enabled
Jan 24 09:47:38 prem-lnx kernel: swiotlb_tbl_map_single: 127338 callbacks suppressed
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: swiotlb buffer is full (sz: 4096 bytes)
Jan 24 09:47:38 prem-lnx kernel: swiotlb_full: 127336 callbacks suppressed
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: DMA: Out of SW-IOMMU space for 4096 bytes
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: swiotlb buffer is full (sz: 712 bytes)
Jan 24 09:47:38 prem-lnx kernel: swiotlb: coherent allocation failed for device 0000:02:00.0 size=712
Jan 24 09:47:38 prem-lnx kernel: CPU: 7 PID: 1016 Comm: NetworkManager Tainted: G D W 4.14.10-1-ARCH #1
Jan 24 09:47:38 prem-lnx kernel: Hardware name: Dell Inc. Precision 7520/0P1FNM, BIOS 1.7.1 09/07/2017
Jan 24 09:47:38 prem-lnx kernel: Call Trace:
Jan 24 09:47:38 prem-lnx kernel: dump_stack+0x5c/0x85
Jan 24 09:47:38 prem-lnx kernel: swiotlb_alloc_coherent+0xe0/0x150
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_section+0xd0/0x4a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_read32+0x1a/0x90 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_poll_bit+0x3e/0x70 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_cpu_sections_8000.isra.18+0xe8/0x2a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_trans_pcie_start_fw+0x417/0x6a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? finish_task_switch+0x75/0x200
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_load_ucode_wait_alive+0xd3/0x2e0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? 0xffffffffc1345000
Jan 24 09:47:38 prem-lnx kernel: ? iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_wait_init_complete+0x20/0x20 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? skb_dequeue+0x52/0x60
Jan 24 09:47:38 prem-lnx kernel: ? wireless_nlevent_flush+0x4f/0x90
Jan 24 09:47:38 prem-lnx kernel: __iwl_mvm_mac_start+0x29a/0x310 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_mac_start+0x51/0x100 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: drv_start+0x35/0x110 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ieee80211_do_open+0x337/0x830 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ? ieee80211_check_concurrent_iface+0x166/0x1c0 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: __dev_open+0xc0/0x140
Jan 24 09:47:38 prem-lnx kernel: __dev_change_flags+0x170/0x1b0
Jan 24 09:47:38 prem-lnx kernel: dev_change_flags+0x23/0x60
Jan 24 09:47:38 prem-lnx kernel: do_setlink+0x2df/0xe10
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ext4_mark_iloc_dirty+0x525/0x870 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: ? __ext4_journal_get_write_access+0x4b/0x90 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? ext4_split_extent_at+0x29e/0x410 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: rtnl_newlink+0x5d2/0x8f0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? security_capable+0x41/0x60
Jan 24 09:47:38 prem-lnx kernel: rtnetlink_rcv_msg+0x1a5/0x2d0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? rtnl_calcit.isra.26+0x120/0x120
Jan 24 09:47:38 prem-lnx kernel: netlink_rcv_skb+0x8d/0x130
Jan 24 09:47:38 prem-lnx kernel: netlink_unicast+0x1aa/0x250
Jan 24 09:47:38 prem-lnx kernel: netlink_sendmsg+0x2a9/0x3a0
Jan 24 09:47:38 prem-lnx kernel: ? netlink_unicast+0x250/0x250
Jan 24 09:47:38 prem-lnx kernel: ___sys_sendmsg+0x2b6/0x310
Jan 24 09:47:38 prem-lnx kernel: ? try_to_wake_up+0x55/0x460
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __mutex_unlock_slowpath.isra.11+0xc1/0x110
Jan 24 09:47:38 prem-lnx kernel: ? __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: entry_SYSCALL_64_fastpath+0x1a/0x7d
Jan 24 09:47:38 prem-lnx NetworkManager[1016]: <info> [1516787258.5298] manager: rfkill: WiFi hardware radio set enabled
Jan 24 09:47:38 prem-lnx kernel: swiotlb_tbl_map_single: 127338 callbacks suppressed
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: swiotlb buffer is full (sz: 4096 bytes)
Jan 24 09:47:38 prem-lnx kernel: swiotlb_full: 127336 callbacks suppressed
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: DMA: Out of SW-IOMMU space for 4096 bytes
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: swiotlb buffer is full (sz: 712 bytes)
Jan 24 09:47:38 prem-lnx kernel: swiotlb: coherent allocation failed for device 0000:02:00.0 size=712
Jan 24 09:47:38 prem-lnx kernel: CPU: 7 PID: 1016 Comm: NetworkManager Tainted: G D W 4.14.10-1-ARCH #1
Jan 24 09:47:38 prem-lnx kernel: Hardware name: Dell Inc. Precision 7520/0P1FNM, BIOS 1.7.1 09/07/2017
Jan 24 09:47:38 prem-lnx kernel: Call Trace:
Jan 24 09:47:38 prem-lnx kernel: dump_stack+0x5c/0x85
Jan 24 09:47:38 prem-lnx kernel: swiotlb_alloc_coherent+0xe0/0x150
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_section+0xd0/0x4a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_read32+0x1a/0x90 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_poll_bit+0x3e/0x70 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_cpu_sections_8000.isra.18+0xe8/0x2a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_trans_pcie_start_fw+0x417/0x6a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? finish_task_switch+0x75/0x200
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_load_ucode_wait_alive+0xd3/0x2e0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? 0xffffffffc1345000
Jan 24 09:47:38 prem-lnx kernel: ? iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_wait_init_complete+0x20/0x20 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? skb_dequeue+0x52/0x60
Jan 24 09:47:38 prem-lnx kernel: ? wireless_nlevent_flush+0x4f/0x90
Jan 24 09:47:38 prem-lnx kernel: __iwl_mvm_mac_start+0x29a/0x310 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_mac_start+0x51/0x100 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: drv_start+0x35/0x110 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ieee80211_do_open+0x337/0x830 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ? ieee80211_check_concurrent_iface+0x166/0x1c0 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: __dev_open+0xc0/0x140
Jan 24 09:47:38 prem-lnx kernel: __dev_change_flags+0x170/0x1b0
Jan 24 09:47:38 prem-lnx kernel: dev_change_flags+0x23/0x60
Jan 24 09:47:38 prem-lnx kernel: do_setlink+0x2df/0xe10
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ext4_mark_iloc_dirty+0x525/0x870 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: ? __ext4_journal_get_write_access+0x4b/0x90 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? ext4_split_extent_at+0x29e/0x410 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: rtnl_newlink+0x5d2/0x8f0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? security_capable+0x41/0x60
Jan 24 09:47:38 prem-lnx kernel: rtnetlink_rcv_msg+0x1a5/0x2d0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? rtnl_calcit.isra.26+0x120/0x120
Jan 24 09:47:38 prem-lnx kernel: netlink_rcv_skb+0x8d/0x130
Jan 24 09:47:38 prem-lnx kernel: netlink_unicast+0x1aa/0x250
Jan 24 09:47:38 prem-lnx kernel: netlink_sendmsg+0x2a9/0x3a0
Jan 24 09:47:38 prem-lnx kernel: ? netlink_unicast+0x250/0x250
Jan 24 09:47:38 prem-lnx kernel: ___sys_sendmsg+0x2b6/0x310
Jan 24 09:47:38 prem-lnx kernel: ? try_to_wake_up+0x55/0x460
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __mutex_unlock_slowpath.isra.11+0xc1/0x110
Jan 24 09:47:38 prem-lnx kernel: ? __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: entry_SYSCALL_64_fastpath+0x1a/0x7d
Jan 24 09:47:38 prem-lnx kernel: RIP: 0033:0x7fab7d689ae4
Jan 24 09:47:38 prem-lnx kernel: RSP: 002b:00007ffdfda7a680 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
Jan 24 09:47:38 prem-lnx kernel: RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fab7d689ae4
Jan 24 09:47:38 prem-lnx kernel: RDX: 0000000000000000 RSI: 00007ffdfda7a6d0 RDI: 0000000000000007
Jan 24 09:47:38 prem-lnx kernel: RBP: 00005581c5faefa4 R08: 0000000000000000 R09: 00005581c7e3e400
Jan 24 09:47:38 prem-lnx kernel: R10: 00005581c7bfc010 R11: 0000000000000293 R12: 0000000000000000
Jan 24 09:47:38 prem-lnx kernel: R13: 00005581c7c71080 R14: 00005581c5faef91 R15: 0000000000000001
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: swiotlb buffer is full (sz: 4096 bytes)
Jan 24 09:47:38 prem-lnx kernel: swiotlb: coherent allocation failed for device 0000:02:00.0 size=4096
Jan 24 09:47:38 prem-lnx kernel: CPU: 7 PID: 1016 Comm: NetworkManager Tainted: G D W 4.14.10-1-ARCH #1
Jan 24 09:47:38 prem-lnx kernel: Hardware name: Dell Inc. Precision 7520/0P1FNM, BIOS 1.7.1 09/07/2017
Jan 24 09:47:38 prem-lnx kernel: Call Trace:
Jan 24 09:47:38 prem-lnx kernel: dump_stack+0x5c/0x85
Jan 24 09:47:38 prem-lnx kernel: swiotlb_alloc_coherent+0xe0/0x150
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_section+0x408/0x4a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_poll_bit+0x3e/0x70 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_pcie_load_cpu_sections_8000.isra.18+0xe8/0x2a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: iwl_trans_pcie_start_fw+0x417/0x6a0 [iwlwifi]
Jan 24 09:47:38 prem-lnx kernel: ? finish_task_switch+0x75/0x200
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_load_ucode_wait_alive+0xd3/0x2e0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? 0xffffffffc1345000
Jan 24 09:47:38 prem-lnx kernel: ? iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_run_init_mvm_ucode+0x8e/0x330 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_wait_init_complete+0x20/0x20 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_up+0x77/0xbd0 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: ? skb_dequeue+0x52/0x60
Jan 24 09:47:38 prem-lnx kernel: ? wireless_nlevent_flush+0x4f/0x90
Jan 24 09:47:38 prem-lnx kernel: __iwl_mvm_mac_start+0x29a/0x310 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: iwl_mvm_mac_start+0x51/0x100 [iwlmvm]
Jan 24 09:47:38 prem-lnx kernel: drv_start+0x35/0x110 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ieee80211_do_open+0x337/0x830 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: ? ieee80211_check_concurrent_iface+0x166/0x1c0 [mac80211]
Jan 24 09:47:38 prem-lnx kernel: __dev_open+0xc0/0x140
Jan 24 09:47:38 prem-lnx kernel: __dev_change_flags+0x170/0x1b0
Jan 24 09:47:38 prem-lnx kernel: dev_change_flags+0x23/0x60
Jan 24 09:47:38 prem-lnx kernel: do_setlink+0x2df/0xe10
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ___slab_alloc+0xf3/0x4b0
Jan 24 09:47:38 prem-lnx kernel: ? ext4_mark_iloc_dirty+0x525/0x870 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: ? __ext4_journal_get_write_access+0x4b/0x90 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? ext4_split_extent_at+0x29e/0x410 [ext4]
Jan 24 09:47:38 prem-lnx kernel: ? mempool_alloc+0x60/0x180
Jan 24 09:47:38 prem-lnx kernel: rtnl_newlink+0x5d2/0x8f0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? security_capable+0x41/0x60
Jan 24 09:47:38 prem-lnx kernel: rtnetlink_rcv_msg+0x1a5/0x2d0
Jan 24 09:47:38 prem-lnx kernel: ? __wake_up_common+0x6d/0x120
Jan 24 09:47:38 prem-lnx kernel: ? rtnl_calcit.isra.26+0x120/0x120
Jan 24 09:47:38 prem-lnx kernel: netlink_rcv_skb+0x8d/0x130
Jan 24 09:47:38 prem-lnx kernel: netlink_unicast+0x1aa/0x250
Jan 24 09:47:38 prem-lnx kernel: netlink_sendmsg+0x2a9/0x3a0
Jan 24 09:47:38 prem-lnx kernel: ? netlink_unicast+0x250/0x250
Jan 24 09:47:38 prem-lnx kernel: ___sys_sendmsg+0x2b6/0x310
Jan 24 09:47:38 prem-lnx kernel: ? try_to_wake_up+0x55/0x460
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __slab_free+0x14e/0x300
Jan 24 09:47:38 prem-lnx kernel: ? __mutex_unlock_slowpath.isra.11+0xc1/0x110
Jan 24 09:47:38 prem-lnx kernel: ? __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: __sys_sendmsg+0x51/0x90
Jan 24 09:47:38 prem-lnx kernel: entry_SYSCALL_64_fastpath+0x1a/0x7d
Jan 24 09:47:38 prem-lnx kernel: RIP: 0033:0x7fab7d689ae4
Jan 24 09:47:38 prem-lnx kernel: RSP: 002b:00007ffdfda7a680 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
Jan 24 09:47:38 prem-lnx kernel: RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 00007fab7d689ae4
Jan 24 09:47:38 prem-lnx kernel: RDX: 0000000000000000 RSI: 00007ffdfda7a6d0 RDI: 0000000000000007
Jan 24 09:47:38 prem-lnx kernel: RBP: 00005581c5faefa4 R08: 0000000000000000 R09: 00005581c7e3e400
Jan 24 09:47:38 prem-lnx kernel: R10: 00005581c7bfc010 R11: 0000000000000293 R12: 0000000000000000
Jan 24 09:47:38 prem-lnx kernel: R13: 00005581c7c71080 R14: 00005581c5faef91 R15: 0000000000000001
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: Failed to start INIT ucode: -12
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: Failed to run INIT ucode: -12
Jan 24 09:47:38 prem-lnx kernel: iwlwifi 0000:02:00.0: Failed to start RT ucode: -12
Jan 24 09:47:38 prem-lnx NetworkManager[1016]: <warn> [1516787258.5520] platform-linux: do-change-link[2]: failure changing link: failure 12 (Cannot allocate memory)
Jan 24 09:47:38 prem-lnx NetworkManager[1016]: <info> [1516787258.5522] audit: op="radio-control" arg="wireless-enabled:1" pid=6122 uid=1001 result="success"


Additional info:
pharidos@prem-lnx:~➤ pacman -Qi linux-firmware | grep Ver
Version : 20171206.fdee922-1
pharidos@prem-lnx:~➤
pharidos@prem-lnx:~➤ modinfo iwlwifi | grep verma
vermagic: 4.14.10-1-ARCH SMP preempt mod_unload modversions


Steps to reproduce:
Just leave a box running on wireless with casual browsing
This task depends upon

Closed by  Doug Newgard (Scimmia)
Tuesday, 13 February 2018, 13:28 GMT
Reason for closing:  No response
Comment by Doug Newgard (Scimmia) - Friday, 09 February 2018, 03:07 GMT
Is this still an issue with 4.15.x?

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