| Message ID | 004d01d76cd3$18db1830$4a914890$@lucidpixels.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | linux 5.13 kernel regression for NFS server | expand |
Hi Justin- > On Jun 29, 2021, at 6:39 AM, Justin Piszcz <jpiszcz@lucidpixels.com> wrote: > > Hello, > > ISSUE: Can no longer mount NFS server(5.13) share. > WORKAROUND: Reverting back to the 5.13-rc7 kernel for the NFS server, all > clients can then mount the share. > > Kernel 5.13 vs. 5.13-rc7 for x86_64 > > With Kernel 5.13-rc7: > > ## mount is successful (from multiple clients, phone, tv, other Linux > client) > # mount 192.168.1.2:/r1 /r1 > # > > With Kernel 5.13 (hangs from multiple clients, phone, tv, other Linux > client) > > ## mount hangs: > # mount 192.168.1.2:/r1 /r1 > > (strace output where it is hanging) > ... > clone(child_stack=NULL, > flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, > child_tidptr=0x7f2285e303d0) = 1741 > wait4(1741, 0x7ffeaab6ce08, 0, NULL) = ? ERESTARTSYS (To be restarted if > SA_RESTART is set) > --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- > wait4(1741, > > No user changes in the kernel .config other than the comment for the version > text: > > --- config-20210628.1624867695 2021-06-28 04:08:15.152781940 -0400 > +++ config-20210628.1624867962 2021-06-28 04:12:42.591981706 -0400 > @@ -1,6 +1,6 @@ > # > # Automatically generated file; DO NOT EDIT. > -# Linux/x86 5.13.0-rc7 Kernel Configuration > +# Linux/x86 5.13.0 Kernel Configuration > # > CONFIG_CC_VERSION_TEXT="gcc (Debian 10.2.1-6) 10.2.1 20210110" > CONFIG_CC_IS_GCC=y It's likely this regression is due to a last minute change to alloc_pages_bulk_array() done just before v5.13. See: https://lore.kernel.org/linux-nfs/20210629081432.GE3840@techsingularity.net/T/#t for details. -- Chuck Lever
On Tue, Jun 29, 2021 at 9:01 AM Chuck Lever III <chuck.lever@oracle.com> wrote: > > Hi Justin- .. > > --- config-20210628.1624867695 2021-06-28 04:08:15.152781940 -0400 > > +++ config-20210628.1624867962 2021-06-28 04:12:42.591981706 -0400 > > @@ -1,6 +1,6 @@ > > # > > # Automatically generated file; DO NOT EDIT. > > -# Linux/x86 5.13.0-rc7 Kernel Configuration > > +# Linux/x86 5.13.0 Kernel Configuration > > # > > CONFIG_CC_VERSION_TEXT="gcc (Debian 10.2.1-6) 10.2.1 20210110" > > CONFIG_CC_IS_GCC=y > > It's likely this regression is due to a last minute change to > alloc_pages_bulk_array() done just before v5.13. See: > > https://lore.kernel.org/linux-nfs/20210629081432.GE3840@techsingularity.net/T/#t > > for details. > > -- > Chuck Lever Hello, thank you! Confirmed that 5.13.1 includes the fix and it is working. Justin.
--- config-20210628.1624867695 2021-06-28 04:08:15.152781940 -0400 +++ config-20210628.1624867962 2021-06-28 04:12:42.591981706 -0400 @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/x86 5.13.0-rc7 Kernel Configuration +# Linux/x86 5.13.0 Kernel Configuration # CONFIG_CC_VERSION_TEXT="gcc (Debian 10.2.1-6) 10.2.1 20210110" CONFIG_CC_IS_GCC=y
Hello, ISSUE: Can no longer mount NFS server(5.13) share. WORKAROUND: Reverting back to the 5.13-rc7 kernel for the NFS server, all clients can then mount the share. Kernel 5.13 vs. 5.13-rc7 for x86_64 With Kernel 5.13-rc7: ## mount is successful (from multiple clients, phone, tv, other Linux client) # mount 192.168.1.2:/r1 /r1 # With Kernel 5.13 (hangs from multiple clients, phone, tv, other Linux client) ## mount hangs: # mount 192.168.1.2:/r1 /r1 (strace output where it is hanging) ... clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7f2285e303d0) = 1741 wait4(1741, 0x7ffeaab6ce08, 0, NULL) = ? ERESTARTSYS (To be restarted if SA_RESTART is set) --- SIGWINCH {si_signo=SIGWINCH, si_code=SI_KERNEL} --- wait4(1741, No user changes in the kernel .config other than the comment for the version text: Justin.