Error with nfsrahead and udev-rules

after update 11/03/26 , i have theses failed and errors messages on boot

sudo journalctl -b0 -p err
mars 11 07:25:39 archlinux kernel: 
mars 11 07:25:42 endmate systemd-coredump[632]: [🡕] Process 615 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 615:
                                                #0  0x00007f3faa0b6a2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007f3faa05c1a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007f3faa0435fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007f3faa044697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007f3faa0c0cbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007f3faa0c0cd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x00005567a47bf35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007f3faa0456c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007f3faa0457f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x00005567a47bf5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate systemd-coredump[639]: [🡕] Process 617 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 617:
                                                #0  0x00007f145b405a2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007f145b3ab1a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007f145b3925fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007f145b393697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007f145b40fcbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007f145b40fcd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x000056263c52935a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007f145b3946c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007f145b3947f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x000056263c5295e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate systemd-coredump[642]: [🡕] Process 618 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 618:
                                                #0  0x00007ff4e8f8fa2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007ff4e8f351a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007ff4e8f1c5fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007ff4e8f1d697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007ff4e8f99cbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007ff4e8f99cd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x000055ba04c2d35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007ff4e8f1e6c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007ff4e8f1e7f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x000055ba04c2d5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate systemd-coredump[638]: [🡕] Process 614 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 614:
                                                #0  0x00007f212beeba2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007f212be911a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007f212be785fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007f212be79697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007f212bef5cbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007f212bef5cd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x00005648b99c535a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007f212be7a6c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007f212be7a7f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x00005648b99c55e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate (udev-worker)[576]: 8:16: Process '/usr/bin/nfsrahead 8:16' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[567]: 8:0: Process '/usr/bin/nfsrahead 8:0' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[576]: 8:16: Failed to wait for spawned command '/usr/bin/nfsrahead 8:16': Input/output error
mars 11 07:25:42 endmate (udev-worker)[567]: 8:0: Failed to wait for spawned command '/usr/bin/nfsrahead 8:0': Input/output error
mars 11 07:25:42 endmate (udev-worker)[584]: 8:64: Process '/usr/bin/nfsrahead 8:64' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[550]: 8:32: Process '/usr/bin/nfsrahead 8:32' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[584]: 8:64: Failed to wait for spawned command '/usr/bin/nfsrahead 8:64': Input/output error
mars 11 07:25:42 endmate (udev-worker)[550]: 8:32: Failed to wait for spawned command '/usr/bin/nfsrahead 8:32': Input/output error
mars 11 07:25:42 endmate systemd-coredump[633]: [🡕] Process 616 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 616:
                                                #0  0x00007f95de31ea2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007f95de2c41a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007f95de2ab5fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007f95de2ac697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007f95de328cbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007f95de328cd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x000055f9c76a935a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007f95de2ad6c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007f95de2ad7f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x000055f9c76a95e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate systemd-coredump[637]: [🡕] Process 619 (nfsrahead) of user 0 dumped core.
                                                
                                                Stack trace of thread 619:
                                                #0  0x00007ff492e00a2c n/a (libc.so.6 + 0x98a2c)
                                                #1  0x00007ff492da61a0 raise (libc.so.6 + 0x3e1a0)
                                                #2  0x00007ff492d8d5fe abort (libc.so.6 + 0x255fe)
                                                #3  0x00007ff492d8e697 n/a (libc.so.6 + 0x26697)
                                                #4  0x00007ff492e0acbc n/a (libc.so.6 + 0xa2cbc)
                                                #5  0x00007ff492e0acd4 n/a (libc.so.6 + 0xa2cd4)
                                                #6  0x000056364a15b35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #7  0x00007ff492d8f6c1 n/a (libc.so.6 + 0x276c1)
                                                #8  0x00007ff492d8f7f9 __libc_start_main (libc.so.6 + 0x277f9)
                                                #9  0x000056364a15b5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
                                                ELF object binary architecture: AMD x86-64
mars 11 07:25:42 endmate (udev-worker)[549]: 8:48: Process '/usr/bin/nfsrahead 8:48' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[549]: 8:48: Failed to wait for spawned command '/usr/bin/nfsrahead 8:48': Input/output error
mars 11 07:25:42 endmate (udev-worker)[581]: 8:80: Process '/usr/bin/nfsrahead 8:80' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[581]: 8:80: Failed to wait for spawned command '/usr/bin/nfsrahead 8:80': Input/output error

sudo journalctl -b0 | grep nfsr

mars 11 07:25:41 endmate systemd-coredump[620]: Process 615 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:41 endmate systemd-coredump[622]: Process 616 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:41 endmate systemd-coredump[623]: Process 619 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:41 endmate systemd-coredump[621]: Process 614 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:41 endmate systemd-coredump[624]: Process 617 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:41 endmate systemd-coredump[628]: Process 618 (nfsrahead) of user 0 terminated abnormally with signal 6/ABRT, processing...
mars 11 07:25:42 endmate systemd-coredump[632]: Process 615 (nfsrahead) of user 0 dumped core.
                                                #6  0x00005567a47bf35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x00005567a47bf5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate systemd-coredump[639]: Process 617 (nfsrahead) of user 0 dumped core.
                                                #6  0x000056263c52935a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x000056263c5295e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate systemd-coredump[642]: Process 618 (nfsrahead) of user 0 dumped core.
                                                #6  0x000055ba04c2d35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x000055ba04c2d5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate systemd-coredump[638]: Process 614 (nfsrahead) of user 0 dumped core.
                                                #6  0x00005648b99c535a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x00005648b99c55e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate (udev-worker)[576]: 8:16: Process '/usr/bin/nfsrahead 8:16' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[567]: 8:0: Process '/usr/bin/nfsrahead 8:0' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[576]: 8:16: Failed to wait for spawned command '/usr/bin/nfsrahead 8:16': Input/output error
mars 11 07:25:42 endmate (udev-worker)[567]: 8:0: Failed to wait for spawned command '/usr/bin/nfsrahead 8:0': Input/output error
mars 11 07:25:42 endmate (udev-worker)[576]: 8:16: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:16": Input/output error
mars 11 07:25:42 endmate (udev-worker)[584]: 8:64: Process '/usr/bin/nfsrahead 8:64' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[567]: 8:0: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:0": Input/output error
mars 11 07:25:42 endmate (udev-worker)[550]: 8:32: Process '/usr/bin/nfsrahead 8:32' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[584]: 8:64: Failed to wait for spawned command '/usr/bin/nfsrahead 8:64': Input/output error
mars 11 07:25:42 endmate (udev-worker)[584]: 8:64: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:64": Input/output error
mars 11 07:25:42 endmate (udev-worker)[550]: 8:32: Failed to wait for spawned command '/usr/bin/nfsrahead 8:32': Input/output error
mars 11 07:25:42 endmate (udev-worker)[550]: 8:32: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:32": Input/output error
mars 11 07:25:42 endmate systemd-coredump[633]: Process 616 (nfsrahead) of user 0 dumped core.
                                                #6  0x000055f9c76a935a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x000055f9c76a95e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate systemd-coredump[637]: Process 619 (nfsrahead) of user 0 dumped core.
                                                #6  0x000056364a15b35a n/a (/usr/bin/nfsrahead + 0x235a)
                                                #9  0x000056364a15b5e5 n/a (/usr/bin/nfsrahead + 0x25e5)
mars 11 07:25:42 endmate (udev-worker)[549]: 8:48: Process '/usr/bin/nfsrahead 8:48' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[549]: 8:48: Failed to wait for spawned command '/usr/bin/nfsrahead 8:48': Input/output error
mars 11 07:25:42 endmate (udev-worker)[581]: 8:80: Process '/usr/bin/nfsrahead 8:80' terminated by signal ABRT.
mars 11 07:25:42 endmate (udev-worker)[549]: 8:48: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:48": Input/output error
mars 11 07:25:42 endmate (udev-worker)[581]: 8:80: Failed to wait for spawned command '/usr/bin/nfsrahead 8:80': Input/output error
mars 11 07:25:42 endmate (udev-worker)[581]: 8:80: /usr/lib/udev/rules.d/99-nfs.rules:1 PROGRAM="/usr/bin/nfsrahead %k": Failed to execute "/usr/bin/nfsrahead 8:80": Input/output error

I’m getting the same. My update almost exclusively featured QEMU and firmware packages. Trying the LTS kernel now…

UPDATE: it’s because of the nfs-utils package; downgrading (or removing) fixes.

waiting for fix

I am experiencing the same problem. It is related to the new nfs-utils version. The error occurs at bootup, but all my NFS shares are accessible without any problem.
As pointed out from you we have to wait for a fix to come.

Installed nfs-utils 2.8.7-1 this morning. Error message is gone.