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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Fabian Freyer wrote: > I've had a panic on a host mounting NFSv4 shares. There are also jails > running on this host acessing these shares (I assume this might be a > problem, as I'm also seeing the nfsuserd messages mentioned in [1]). > Here's the last relevant lines of the kernel message buffer. > Jun 25 05:47:39 emmi nfsuserd:[916]: req from ip=3D0x[REDACTED] port=3D94= 9 > kernel trap 12 with interrupts disabled The nfsuserd daemon doesn't work when jails are enabled. (I'm not a jails person, but I understand jails blocks/disables 127.0.0.1 and that will defi= nitely break nfsuserd.) I have a patch that switches nfsuserd to use a local socket to avoid this, = but another tester experienced hangs when using it. I believe the hangs were caused by races in the local socket code tickled by having multiple nfsuser= d daemons running, but since I could not reproduce the hang, I never committe= d the patch to head, etc. (There is PR#205193 for this.) Without the patch, you have three choices: 1 - Set vfs.nfsd.enable_stringtouid=3D1 and don't run the nfsuserd. (This s= hould allow NFSv4 to work, assuming you are not doing Kerberos mounts and your ui= d space is consistent between clients and server.) 2 - Get rid of the jails. 3 - Change all your mounts to NFSv3 and don't try to run the nfsuserd daemo= n. In case you can test the patch, I have attached it. (It is actually 2 patch= es, one for nfsuserd.c and one for the kernel. I don't remember what version of sources= it is done for, but since you didn't mention what version of FreeBSD you are r= unning...) If you test it, make sure to include "1" as the last argument to nfsuserd, = so that it only runs one daemon. - Until someone successfully tests this patch, this problem will probably r= emain, rick [stuff snipped] ps: If you can test it, but have trouble applying the patch, email and I'll= try to update the patch to current sources.= --_003_YTXPR01MB0189AEFF9AE549885A1F1373DDDE0YTXPR01MB0189CANP_ Content-Type: application/octet-stream; name="nfsuserd-aflocal.patch" Content-Description: nfsuserd-aflocal.patch Content-Disposition: attachment; filename="nfsuserd-aflocal.patch"; size=4683; creation-date="Sun, 25 Jun 2017 22:43:23 GMT"; modification-date="Sun, 25 Jun 2017 22:43:23 GMT" Content-Transfer-Encoding: base64 LS0tIHVzci5zYmluL25mc3VzZXJkL25mc3VzZXJkLmMuc2F2CTIwMTUtMTItMDkgMTg6NDY6Mjku Mjg0OTcyMDAwIC0wNTAwCisrKyB1c3Iuc2Jpbi9uZnN1c2VyZC9uZnN1c2VyZC5jCTIwMTUtMTIt MTAgMjE6MzU6MTcuNTA1MzQzMDAwIC0wNTAwCkBAIC0zNSw2ICszNSw3IEBAIF9fRkJTRElEKCIk 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