On Wed, 15 Jun 2022 14:00:04 -0700, Bart Van Assche wrote:
> This patch prevents that test nvme/004 triggers the following:
>
> UBSAN: array-index-out-of-bounds in block/blk-mq.h:135:9
> index 512 is out of range for type 'long unsigned int [512]'
> Call Trace:
> show_stack+0x52/0x58
> dump_stack_lvl+0x49/0x5e
> dump_stack+0x10/0x12
> ubsan_epilogue+0x9/0x3b
> __ubsan_handle_out_of_bounds.cold+0x44/0x49
> blk_mq_alloc_request_hctx+0x304/0x310
> __nvme_submit_sync_cmd+0x70/0x200 [nvme_core]
> nvmf_connect_io_queue+0x23e/0x2a0 [nvme_fabrics]
> nvme_loop_connect_io_queues+0x8d/0xb0 [nvme_loop]
> nvme_loop_create_ctrl+0x58e/0x7d0 [nvme_loop]
> nvmf_create_ctrl+0x1d7/0x4d0 [nvme_fabrics]
> nvmf_dev_write+0xae/0x111 [nvme_fabrics]
> vfs_write+0x144/0x560
> ksys_write+0xb7/0x140
> __x64_sys_write+0x42/0x50
> do_syscall_64+0x35/0x80
> entry_SYSCALL_64_after_hwframe+0x44/0xae
>
> [...]
Applied, thanks!
[1/1] block: Fix handling of offline queues in blk_mq_alloc_request_hctx()
commit: 14dc7a18abbe4176f5626c13c333670da8e06aa1
Best regards,
--
Jens Axboe
