Hello: This patch was applied to netdev/net.git (master) by Jakub Kicinski <kuba@xxxxxxxxxx>: On Wed, 28 Sep 2022 15:45:38 +0900 you wrote: > When copying a large file over sftp over vsock, data size is usually 32kB, > and kmalloc seems to fail to try to allocate 32 32kB regions. > > Call Trace: > [<ffffffffb6a0df64>] dump_stack+0x97/0xdb > [<ffffffffb68d6aed>] warn_alloc_failed+0x10f/0x138 > [<ffffffffb68d868a>] ? __alloc_pages_direct_compact+0x38/0xc8 > [<ffffffffb664619f>] __alloc_pages_nodemask+0x84c/0x90d > [<ffffffffb6646e56>] alloc_kmem_pages+0x17/0x19 > [<ffffffffb6653a26>] kmalloc_order_trace+0x2b/0xdb > [<ffffffffb66682f3>] __kmalloc+0x177/0x1f7 > [<ffffffffb66e0d94>] ? copy_from_iter+0x8d/0x31d > [<ffffffffc0689ab7>] vhost_vsock_handle_tx_kick+0x1fa/0x301 [vhost_vsock] > [<ffffffffc06828d9>] vhost_worker+0xf7/0x157 [vhost] > [<ffffffffb683ddce>] kthread+0xfd/0x105 > [<ffffffffc06827e2>] ? vhost_dev_set_owner+0x22e/0x22e [vhost] > [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3 > [<ffffffffb6eb332e>] ret_from_fork+0x4e/0x80 > [<ffffffffb683dcd1>] ? flush_kthread_worker+0xf3/0xf3 > > [...] Here is the summary with links: - vhost/vsock: Use kvmalloc/kvfree for larger packets. https://git.kernel.org/netdev/net/c/0e3f72931fc4 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html