** Changed in: linux-gcp (Ubuntu Focal)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1958416
Title:
b/linux-gcp-5.4: log_check WARNING on n2d-standard-64
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Status in linux-gcp package in Ubuntu:
Invalid
Status in linux source package in Focal:
Triaged
Status in linux-gcp source package in Focal:
Fix Committed
Bug description:
[Impact]
Small SWIOTLB might cause DMA failures during High IO on GCP instances using
SEV.
[Test case]
Boot n2d-standard-2 or n2d-standard-64 instances on GCP, issue a lot of IO,
and look for DMA overflow or full swiotlb messages on dmesg.
[Potential regression]
Boot failures should not be discarded when SWIOTLB cannot be allocated.
------------------
ubuntu_boot log_check fails with: WARNING: CPU: 34 PID: 8648 at
/build/linux-gcp-5.4-zTWCml/linux-gcp-5.4-5.4.0/kernel/dma/direct.c:35
report_addr+0x33/0x90
From the serial console:
[ 137.928758] nvme 0000:00:04.0: overflow 0x0000801f68b5f000+131072 of DMA
mask ffffffffffffffff bus mask 0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.928758]
nvme 0000:00:04.0: overflow 0x0000801f68b5f000+131072 of DMA mask
ffffffffffffffff bus mask 0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938685]
------------[ cut here ]------------
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938691]
WARNING: CPU: 34 PID: 8648 at
/build/linux-gcp-5.4-zTWCml/linux-gcp-5.4-5.4.0/kernel/dma/direct.c:35
report_addr+0x33/0x90
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938691]
Modules linked in: ip6table_filter ip6_tables iptable_filter bpfilter
nls_iso8859_1 input_leds pvpanic serio_raw mac_hid sch_fq_codel ib_iser rdma_cm
iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi
ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 raid0 multipath
linear crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel
crypto_simd cryptd glue_helper psmouse i2c_piix4 gve
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938712]
CPU: 34 PID: 8648 Comm: apt-check Not tainted 5.4.0-1060-gcp #64~18.04.1-Ubuntu
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938712]
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google
01/01/2011
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938714]
RIP: 0010:report_addr+0x33/0x90
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938716]
Code: 48 83 ec 08 48 8b 87 30 02 00 00 48 89 75 f8 48 85 c0 74 26 4c 8b 00 b8
fe ff ff ff 49 39 c0 76 0d 80 3d 47 67 b2 01 00 74 2e <0f> 0b c9 c3 48 83 bf 40
02 00 00 00 75 e9 eb f0 80 3d 2f 67 b2 01
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938716]
RSP: 0018:ffffbd77cf99f4e0 EFLAGS: 00010282
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938718]
RAX: 0000000000000000 RBX: ffff9773f8b960b0 RCX: 0000000000000000
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938718]
RDX: 0000000000000000 RSI: ffff9753ff897448 RDI: 0000000000000000
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938719]
RBP: ffffbd77cf99f4e8 R08: 0000000000000305 R09: 0000000000000022
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938719]
R10: 000000000016dfee R11: ffffbd77cf99f218 R12: 0000000000020000
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938720]
R13: ffff9753abfe9000 R14: 0000000000000001 R15: 0000000000000100
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938723] FS:
00007f55bb523740(0000) GS:ffff9753ff880000(0000) knlGS:0000000000000000
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938723] CS:
0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938724]
CR2: 00007f55b41d6000 CR3: 0000801f6be28000 CR4: 0000000000340ee0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938726]
Call Trace:
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938730]
dma_direct_map_page+0xe2/0xf0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938731]
dma_direct_map_sg+0x6c/0xc0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938735]
nvme_queue_rq+0x6fb/0xbd0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938738]
__blk_mq_try_issue_directly+0x139/0x200
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938741] ?
mempool_free_slab+0x1/0x20
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938743]
blk_mq_request_issue_directly+0x4b/0xe0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938744]
blk_mq_try_issue_list_directly+0x46/0xb0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938746]
blk_mq_sched_insert_requests+0xb7/0x100
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938747]
blk_mq_flush_plug_list+0x1eb/0x2a0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938749]
blk_flush_plug_list+0xd1/0x100
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938750]
blk_mq_make_request+0x306/0x5a0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938751]
generic_make_request+0x121/0x300
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938754] ?
ext4_attr_store+0x60/0x270
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938755]
submit_bio+0x46/0x1c0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938756] ?
submit_bio+0x46/0x1c0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938758]
ext4_io_submit+0x4d/0x60
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938760]
ext4_writepages+0x624/0xe80
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938762]
do_writepages+0x4b/0xe0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938763] ?
do_writepages+0x4b/0xe0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938765] ?
__ext4_find_entry+0x20e/0x440
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938767] ?
__wake_up_common_lock+0x8c/0xc0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938768]
__filemap_fdatawrite_range+0xcb/0x100
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938769] ?
__filemap_fdatawrite_range+0xcb/0x100
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938770]
filemap_flush+0x1c/0x20
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938771]
ext4_alloc_da_blocks+0x2c/0x70
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938772]
ext4_rename+0x6ee/0x930
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938774]
ext4_rename2+0x8d/0xc0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938776]
vfs_rename+0x3dc/0xa80
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938778] ?
__d_lookup+0x104/0x140
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938779] ?
__d_lookup+0x90/0x140
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938780]
do_renameat2+0x4ca/0x590
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938781] ?
do_renameat2+0x4ca/0x590
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938783]
__x64_sys_rename+0x20/0x30
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938785]
do_syscall_64+0x57/0x190
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938788]
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938789]
RIP: 0033:0x7f55baf91e17
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938791]
Code: 75 12 48 89 df e8 79 60 09 00 85 c0 0f 95 c0 0f b6 c0 f7 d8 5b c3 66 2e
0f 1f 84 00 00 00 00 00 0f 1f 00 b8 52 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 09
f3 c3 0f 1f 80 00 00 00 00 48 8b 15 39 f0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938791]
RSP: 002b:00007ffed8ceca78 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938792]
RAX: ffffffffffffffda RBX: 00007ffed8cecaf0 RCX: 00007f55baf91e17
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938793]
RDX: 0000000001583010 RSI: 000000000181f7e0 RDI: 000000000188c7f0
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938793]
RBP: 0000000000000001 R08: 0000000000004f9c R09: 00007f55b41d7958
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938794]
R10: 0000000000004f6c R11: 0000000000000246 R12: 00000000017c0310
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938794]
R13: 0000000001807f90 R14: 00007ffed8cecc60 R15: 00000000017d5e90
Jan 19 12:54:30 b-lgcp-5-4-gcp-5-4-0-n2dstd64-boot kernel: [ 137.938795]
---[ end trace 6a8dfca91c44dc9b ]---
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