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From: Chuck Lever via Bugspray Bot <bugbot@kernel.org>
To: anna@kernel.org, cel@kernel.org, iommu@lists.linux.dev,
	 jlayton@kernel.org, trondmy@kernel.org, robin.murphy@arm.com,
	 linux-nfs@vger.kernel.org, chuck.lever@oracle.com
Subject: Re: NFS Server Issues with RDMA in Kernel 6.13.6
Date: Tue, 01 Apr 2025 14:10:13 +0000	[thread overview]
Message-ID: <20250401-b219865c8-f01953980930@bugzilla.kernel.org> (raw)
In-Reply-To: <20250313-b219865c0-2a34cbc6e249@bugzilla.kernel.org>

Chuck Lever writes via Kernel.org Bugzilla:

Attachment 307898 shows something completely different than before:

[ 4478.512632]  xfs_blockgc_flush_all+0x99/0x140 [xfs]
[ 4478.512760]  xfs_trans_alloc+0x116/0x2b0 [xfs]
[ 4478.512890]  xfs_trans_alloc_inode+0x7d/0x190 [xfs]
[ 4478.513012]  xfs_alloc_file_space+0x1ad/0x340 [xfs]
[ 4478.513149]  xfs_file_fallocate+0x243/0x4b0 [xfs]
[ 4478.513276]  vfs_fallocate+0x18d/0x440
[ 4478.513294]  nfsd4_vfs_fallocate+0x50/0xa0 [nfsd]
[ 4478.513351]  nfsd4_allocate+0x69/0xb0 [nfsd]
[ 4478.513398]  nfsd4_proc_compound+0x484/0x930 [nfsd]
[ 4478.513432]  ? srso_return_thunk+0x5/0x5f
[ 4478.513447]  nfsd_dispatch+0xfe/0x2e0 [nfsd]
[ 4478.513493]  svc_process_common+0x352/0x7d0 [sunrpc]
[ 4478.513556]  ? __pfx_nfsd_dispatch+0x10/0x10 [nfsd]
[ 4478.513600]  svc_process+0x13e/0x260 [sunrpc]
[ 4478.513644]  svc_recv+0x9a8/0xc40 [sunrpc]
[ 4478.513694]  ? __pfx_nfsd+0x10/0x10 [nfsd]
[ 4478.513733]  nfsd+0xe0/0x150 [nfsd]
[ 4478.513769]  kthread+0xe7/0x120
[ 4478.513777]  ? __pfx_kthread+0x10/0x10
[ 4478.513787]  ret_from_fork+0x46/0x70
[ 4478.513794]  ? __pfx_kthread+0x10/0x10
[ 4478.513801]  ret_from_fork_asm+0x1a/0x30

Here your NFS server is waiting in the local file system for an NFSv4.2 ALLOCATE operation. Nothing to do with RDMA.

I'm at a loss to say that there is anything specific -- I think you are just at the limit that your server configuration can handle.

View: https://bugzilla.kernel.org/show_bug.cgi?id=219865#c8
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      parent reply	other threads:[~2025-04-01 14:09 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-13 18:35 NFS Server Issues with RDMA in Kernel 6.13.6 Lucas via Bugspray Bot
2025-03-13 18:44 ` Chuck Lever
2025-03-13 19:20   ` Lucas via Bugspray Bot
2025-03-14 10:43     ` Robin Murphy
2025-03-14 20:26       ` Chuck Lever
2025-03-24 16:55 ` Lucas via Bugspray Bot
2025-03-24 18:35 ` Chuck Lever via Bugspray Bot
2025-03-26 23:00 ` Lucas via Bugspray Bot
2025-04-01 14:10 ` Chuck Lever via Bugspray Bot [this message]

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