1. Please describe the problem: Multiple warnings with sysfs creating duplicate nodes on ppc64le (also might be occuring with s390x). Typical appearance in dmesg is [ 10.839513] sysfs: cannot create duplicate filename '/bus/nvmem/devices/module-vpd' [ 10.843750] CPU: 29 PID: 1089 Comm: systemd-udevd Not tainted 5.10.9-201.fc33.ppc64le #1 [ 10.843752] Call Trace: [ 10.843757] [c0002000110970a0] [c000000000acfb00] dump_stack+0xc4/0x114 (unreliable) [ 10.855893] [c0002000110970f0] [c0000000006b8768] sysfs_warn_dup+0x88/0xc0 [ 10.855897] [c000200011097170] [c0000000006b8cdc] sysfs_create_link+0x18c/0x1b0 [ 10.855900] [c0002000110971b0] [c000000000c8cc24] bus_add_device+0x94/0x1e0 [ 10.855903] [c000200011097230] [c000000000c85734] device_add+0x434/0xc10 [ 10.855906] [c000200011097300] [c000000000fc2aa8] nvmem_register+0x1f8/0x1030 [ 10.855909] [c000200011097400] [c000000000fc3944] devm_nvmem_register+0x64/0xd0 [ 10.855917] [c000200011097440] [c0080000090e0dec] at24_probe+0x694/0x920 [at24] [ 10.855925] [c0002000110976a0] [c008000007282064] i2c_device_probe+0x18c/0x630 [i2c_core] [ 10.855927] [c000200011097740] [c000000000c8e8c4] really_probe+0x134/0x7d0 [ 10.855930] [c0002000110977f0] [c000000000c8f59c] driver_probe_device+0x14c/0x1f0 [ 10.855932] [c000200011097870] [c000000000c8fbb8] __driver_attach+0x1f8/0x2d0 [ 10.855936] [c0002000110978f0] [c000000000c8adac] bus_for_each_dev+0x9c/0xf0 [ 10.855938] [c000200011097940] [c000000000c8dd64] driver_attach+0x34/0x50 [ 10.855941] [c000200011097960] [c000000000c8d2a8] bus_add_driver+0x1d8/0x2f0 [ 10.855944] [c0002000110979f0] [c000000000c911e4] driver_register+0xb4/0x1c0 [ 10.855949] [c000200011097a60] [c00800000728339c] i2c_register_driver+0x74/0x120 [i2c_core] [ 10.855953] [c000200011097ae0] [c0080000090e1244] at24_init+0x6c/0x88 [at24] [ 10.855955] [c000200011097b40] [c000000000011fe0] do_one_initcall+0x60/0x2c0 [ 10.855958] [c000200011097c10] [c0000000002935dc] do_init_module+0x7c/0x300 [ 10.855961] [c000200011097ca0] [c000000000298040] __do_sys_init_module+0x200/0x250 [ 10.855963] [c000200011097dc0] [c000000000034254] system_call_exception+0xe4/0x1c0 This may be the same as this upstream report: https://bugzilla.kernel.org/show_bug.cgi?id=210749 2. What is the Version-Release number of the kernel: Linux censored.floodgap.com 5.10.9-201.fc33.ppc64le #1 SMP Wed Jan 20 16:40:55 UTC 2021 ppc64le ppc64le ppc64le GNU/Linux 3. Did it work previously in Fedora? If so, what kernel version did the issue *first* appear? Old kernels are available for download at https://koji.fedoraproject.org/koji/packageinfo?packageID=8 : First appeared in 5.10. 4. Can you reproduce this issue? If so, please provide the steps to reproduce the issue below: Reproduces readily on every boot. 5. Does this problem occur with the latest Rawhide kernel? To install the Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by ``sudo dnf update --enablerepo=rawhide kernel``: Yes, occurs with 5.11-rc. 6. Are you running any modules that not shipped with directly Fedora's kernel?: No. 7. Please attach the kernel logs. You can get the complete kernel log for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the issue occurred on a previous boot, use the journalctl ``-b`` flag. Relevant portion quoted above, advise if more examples requested.
pasting output from 5.10.8-100.fc32.ppc64le with a slightly more context [ 11.888316] EXT4-fs (dm-0): re-mounted. Opts: (null) [ 12.011054] systemd-journald[1293]: Received client request to flush runtime journal. [ 13.878757] IPMI message handler: version 39.2 [ 14.040237] ipmi device interface [ 14.111474] ses 8:3:123:0: Attached Enclosure device [ 14.126773] rtc-opal opal-rtc: registered as rtc0 [ 14.131875] ipmi-powernv ibm,opal:ipmi: IPMI message handler: Found new BMC (man_id: 0x00cb06, prod_id: 0x0001, dev_id: 0x00) [ 14.142375] at24 8-0050: supply vcc not found, using dummy regulator [ 14.143208] at24 8-0050: 65536 byte 24c512 EEPROM, writable, 1 bytes/write [ 14.143255] at24 9-0050: supply vcc not found, using dummy regulator [ 14.143312] sysfs: cannot create duplicate filename '/bus/nvmem/devices/module-vpd' [ 14.143317] CPU: 43 PID: 1372 Comm: systemd-udevd Not tainted 5.10.8-100.fc32.ppc64le #1 [ 14.143320] Call Trace: [ 14.143328] [c0002000262c30a0] [c000000000acf260] dump_stack+0xc4/0x114 (unreliable) [ 14.143336] [c0002000262c30f0] [c0000000006b8428] sysfs_warn_dup+0x88/0xc0 [ 14.143340] [c0002000262c3170] [c0000000006b899c] sysfs_create_link+0x18c/0x1b0 [ 14.143345] [c0002000262c31b0] [c000000000c8c384] bus_add_device+0x94/0x1e0 [ 14.143350] [c0002000262c3230] [c000000000c84e94] device_add+0x434/0xc10 [ 14.143355] [c0002000262c3300] [c000000000fc2128] nvmem_register+0x1f8/0x1030 [ 14.143359] [c0002000262c3400] [c000000000fc2fc4] devm_nvmem_register+0x64/0xd0 [ 14.143366] [c0002000262c3440] [c008000007640dec] at24_probe+0x694/0x920 [at24] [ 14.143373] [c0002000262c36a0] [c008000006ee2064] i2c_device_probe+0x18c/0x630 [i2c_core] [ 14.143377] [c0002000262c3740] [c000000000c8e024] really_probe+0x134/0x7d0 [ 14.143380] [c0002000262c37f0] [c000000000c8ecfc] driver_probe_device+0x14c/0x1f0 [ 14.143384] [c0002000262c3870] [c000000000c8f318] __driver_attach+0x1f8/0x2d0 [ 14.143389] [c0002000262c38f0] [c000000000c8a50c] bus_for_each_dev+0x9c/0xf0 [ 14.143392] [c0002000262c3940] [c000000000c8d4c4] driver_attach+0x34/0x50 [ 14.143396] [c0002000262c3960] [c000000000c8ca08] bus_add_driver+0x1d8/0x2f0 [ 14.143400] [c0002000262c39f0] [c000000000c90944] driver_register+0xb4/0x1c0 [ 14.143406] [c0002000262c3a60] [c008000006ee339c] i2c_register_driver+0x74/0x120 [i2c_core] [ 14.143411] [c0002000262c3ae0] [c008000007641244] at24_init+0x6c/0x88 [at24] [ 14.143416] [c0002000262c3b40] [c000000000011fe0] do_one_initcall+0x60/0x2c0 [ 14.143421] [c0002000262c3c10] [c0000000002935bc] do_init_module+0x7c/0x300 [ 14.143425] [c0002000262c3ca0] [c000000000298020] __do_sys_init_module+0x200/0x250 [ 14.143429] [c0002000262c3dc0] [c000000000034254] system_call_exception+0xe4/0x1c0 [ 14.143433] [c0002000262c3e20] [c00000000000d260] system_call_common+0xf0/0x27c [ 14.143516] at24: probe of 9-0050 failed with error -17 [ 14.143537] at24 10-0050: supply vcc not found, using dummy regulator [ 14.143589] sysfs: cannot create duplicate filename '/bus/nvmem/devices/module-vpd' [ 14.143592] CPU: 43 PID: 1372 Comm: systemd-udevd Not tainted 5.10.8-100.fc32.ppc64le #1 [ 14.143594] Call Trace: [ 14.143598] [c0002000262c30a0] [c000000000acf260] dump_stack+0xc4/0x114 (unreliable) [ 14.143603] [c0002000262c30f0] [c0000000006b8428] sysfs_warn_dup+0x88/0xc0 [ 14.143607] [c0002000262c3170] [c0000000006b899c] sysfs_create_link+0x18c/0x1b0 [ 14.143611] [c0002000262c31b0] [c000000000c8c384] bus_add_device+0x94/0x1e0 [ 14.143615] [c0002000262c3230] [c000000000c84e94] device_add+0x434/0xc10 [ 14.143619] [c0002000262c3300] [c000000000fc2128] nvmem_register+0x1f8/0x1030 [ 14.143623] [c0002000262c3400] [c000000000fc2fc4] devm_nvmem_register+0x64/0xd0 [ 14.143628] [c0002000262c3440] [c008000007640dec] at24_probe+0x694/0x920 [at24] [ 14.143634] [c0002000262c36a0] [c008000006ee2064] i2c_device_probe+0x18c/0x630 [i2c_core] [ 14.143638] [c0002000262c3740] [c000000000c8e024] really_probe+0x134/0x7d0
seems it went away with kernel-5.14.0-0.rc3.29.fc35.ppc64le, but was still there with kernel-5.14.0-0.rc2.23.fc35.ppc64le
This message is a reminder that Fedora 33 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora 33 on 2021-11-30. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '33'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 33 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 33 changed to end-of-life (EOL) status on 2021-11-30. Fedora 33 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c36748ac5454 fixed this bug.