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<p class="MsoNormal"><span lang="EN-US">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">We met this issue symptom after upgrading Linux kernel to 5.10.xx.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">However, we didn't meet this issue at kernel 5.4 and 5.8.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And, we had run QEMU with latest palmetto 5.10.23 image, issue symptom also can be repo it.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is there anyone meet this issue at Linux kernel 5.10.xx? From journal log, we didn’t find any obvious log about this symptom.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This issue is easy to repo and 100%, you can follow below repo step on your OpenBMC project to repo it. Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Symptom:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">==============================================================================<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Ipmi.Test Ipmi User :: Test suite for OpenBMC IPMI user management.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">==============================================================================<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Verify IPMI User Summary :: Verify IPMI maximum supported IPMI use...<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">| FAIL |<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Set User Name command failed (user 9, name HgekZnCI): Unspecified error: 1 != 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Journal Log:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">olympus-nuvoton kernel: Linux version 5.10.14-711b69d-dirty-08f25ae (oe-user@oe-host)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 18 14:42:26 olympus-nuvoton phosphor-user-manager[1409]:
<b>useradd: cannot open /etc/passwd</b><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 18 14:42:26 olympus-nuvoton useradd[1409]: failed adding user 'HgekZnCI', data deleted<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 18 14:42:26 olympus-nuvoton phosphor-user-manager[288]: The operation failed internally.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 18 14:42:26 olympus-nuvoton phosphor-user-manager[288]: Unable to create new user<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 18 14:42:26 olympus-nuvoton phosphor-user-manager[288]: The operation failed internally.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">How to repo:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">1. Run robot -t Verify_IPMI_User_Summary ipmi/test_ipmi_user.robot or<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">2. Execute useradd command to add user in our Olympus-nuvoton runbmc device.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> root@olympus-nuvoton:/# useradd timlee<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <b>useradd: cannot open /etc/passwd<o:p></o:p></b></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">QEMU for plametto test result:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">root@palmetto:~# cat /proc/version<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Linux version 5.10.23-6687842 (oe-user@oe-host) (arm-openbmc-linux-gnueabi-gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.36.1.20210209) #1 Sun Mar 28 20:54:20 UTC 2021<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">root@palmetto:~# useradd timlee<o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">useradd: cannot open /etc/passwd<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">Debug:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-US">We had added more debug log in overlayfs driver, but seems all overlayfs function call normally without error code return.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Here is the part of log after executing useradd command.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">root@olympus-nuvoton:/# useradd timlee66<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:41 olympus-nuvoton kernel: overlayfs: open(a6b0076c[sbin/useradd/l], 0400040) -> (581ac127, 0401400040)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(c2f826cb[etc/nsswitch.conf/l], 00) -> (f971c00e, 0401000000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(6fc219b2[etc/ld.so.cache/l], 0400000) -> (0d21569c, 0401400000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(48a47202[lib/libnss_files-2.32.so/l], 0400000) -> (ee6b0bfe, 0401400000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(3c1f263f[etc/passwd/l], 00) -> (b7939c0b, 0401000000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(176fd21b[etc/ld.so.cache/l], 0400000) -> (d2e6be78, 0401400000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:46 olympus-nuvoton kernel: overlayfs: open(607e8d70[lib/libnss_ldap.so.2/l], 0400000) -> (57f4f2f1, 0401400000)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton kernel: overlayfs: create(etc/passwd.985, 0100600) = 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton kernel: overlayfs: open(c46e5b8b[etc/passwd.985/u], 0400001) -> (ef6449e9, 0401400001)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton kernel: overlayfs: link(etc/passwd.985, etc/passwd.lock) = 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton kernel: overlayfs: create(work/#1b, 0100000) = 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton kernel: overlayfs: unlink(work/#1b) = 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Mar 24 05:21:52 olympus-nuvoton useradd[985]: failed adding user 'timlee', data deleted<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">useradd: cannot open /etc/passwd<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Tim<o:p></o:p></span></p>
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