> On Sep 26, 2023, at 5:52 PM, Olga Kornievskaia <aglo@xxxxxxxxx> wrote: > > On Tue, Sep 26, 2023 at 10:08 AM Chuck Lever III <chuck.lever@xxxxxxxxxx> wrote: >> >> >> >>> On Sep 26, 2023, at 12:41 AM, Mantas Mikulėnas <grawity@xxxxxxxxx> wrote: >>> >>> On 25/09/2023 22.22, Chuck Lever III wrote: >>>>> On Sep 24, 2023, at 2:24 PM, Chuck Lever III <chuck.lever@xxxxxxxxxx> wrote: >>>>> >>>>>> On Sep 24, 2023, at 12:51 PM, Mantas Mikulėnas <grawity@xxxxxxxxx> wrote: >>>>>> >>>>>> Right, whereas on the server, the first file is filled with "Hello World (4092 bytes)" as I originally tried to narrow down the issue. >>>>>> >>>>>> Meanwhile, 6.4.x (Arch) clients don't seem to be having any problems with the same server, and with seemingly the same mount options. >>>>>> >>>>>> Thanks for looking into it!<nfs_krb5i_working_6.4client.pcap> >>>>> I found /a/ problem with the nfsd-fixes branch and krb5i, but >>>>> maybe not /your/ problem, and it's with a recent client. Scrounging >>>>> a v5.10-vintage client is a little more work, we'll see if that's >>>>> needed for confirming an eventual fix. >>>> The issue I reproduced appears to be unrelated. >>>> >>>> I'm wondering if I can get you to bisect the server kernel using >>>> your v5.10 client to test? good = v6.4, bad = v6.5 should do it. >>> >>> Yeah, I will try to bisect but it'll probably take a day or two. >> >> That's great, thank you! >> >> I'm looking into setting up a virtual guest with v5.10 just in case. >> Turns out v5.10 does not build on Fedora latest. > > I can reproduce this with upstream client do dd if=/mnt/4092byteslen > of=/dev/null bs=4092 count=1 iflag=direct Hrm. [cel@morisot cthon04]$ nfsstat -m /mnt/bazille from bazille.1015granger.net:/export/btrfs Flags: rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=krb5i,clientaddr=192.168.1.67,local_lock=none,addr=192.168.1.56 [cel@morisot cthon04]$ ls -l /mnt/bazille/4092byteslen -rw-r--r-- 1 cel users 4092 Sep 26 18:52 /mnt/bazille/4092byteslen [cel@morisot cthon04]$ dd if=/mnt/bazille/4092byteslen of=/dev/null bs=4092 count=1 iflag=direct 1+0 records in 1+0 records out 4092 bytes (4.1 kB, 4.0 KiB) copied, 0.00059679 s, 6.9 MB/s [cel@morisot cthon04]$ -- Chuck Lever
