(r257598) panic: Assertion tmp->tm_pages_used == 0 failed at /usr/src/sys/modules/tmpfs/../../fs/tmpfs/tmpfs_vfsops.c:316

[Bryan Drewery]

11.0-CURRENT #87 r257598

During a poudriere build.

It creates a tmpfs, builds a port in a jail using that tmpfs and then
removes the tmpfs and recreate the tmpfs before building the next port.

> panic: Assertion tmp->tm_pages_used == 0 failed at /usr/src/sys/modules/tmpfs/../../fs/tmpfs/tmpfs_vfsops.c:316
> cpuid = 9
> KDB: stack backtrace:
> db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe1247ee57a0
> kdb_backtrace() at kdb_backtrace+0x39/frame 0xfffffe1247ee5850
> vpanic() at vpanic+0x126/frame 0xfffffe1247ee5890
> kassert_panic() at kassert_panic+0x136/frame 0xfffffe1247ee5900
> tmpfs_unmount() at tmpfs_unmount+0x163/frame 0xfffffe1247ee5930
> dounmount() at dounmount+0x41f/frame 0xfffffe1247ee59b0
> sys_unmount() at sys_unmount+0x356/frame 0xfffffe1247ee5ae0
> amd64_syscall() at amd64_syscall+0x265/frame 0xfffffe1247ee5bf0
> Xfast_syscall() at Xfast_syscall+0xfb/frame 0xfffffe1247ee5bf0
> --- syscall (22, FreeBSD ELF64, sys_unmount), rip = 0x8008a02fa, rsp = 0x7fffffffd198, rbp = 0x7fffffffd2b0 ---
> Uptime: 44m40s

> (kgdb) #0  doadump (textdump=1) at pcpu.h:219
> #1  0xffffffff808bcf87 in kern_reboot (howto=260)
>     at /usr/src/sys/kern/kern_shutdown.c:447
> #2  0xffffffff808bd495 in vpanic (fmt=<value optimized out>,
>     ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:754
> #3  0xffffffff808bd326 in kassert_panic (fmt=<value optimized out>)
>     at /usr/src/sys/kern/kern_shutdown.c:642
> #4  0xffffffff81e159d3 in tmpfs_unmount (mp=0xfffff810502cd660,
>     mntflags=<value optimized out>)
>     at /usr/src/sys/modules/tmpfs/../../fs/tmpfs/tmpfs_vfsops.c:316
> #5  0xffffffff8095e1af in dounmount (mp=0xfffff810502cd660, flags=134742016,
>     td=0xfffff8013d57a490) at /usr/src/sys/kern/vfs_mount.c:1324
> #6  0xffffffff8095dd66 in sys_unmount (td=0xfffff8013d57a490,
>     uap=0xfffffe1247ee5b80) at /usr/src/sys/kern/vfs_mount.c:1212
> #7  0xffffffff80cb7d75 in amd64_syscall (td=0xfffff8013d57a490, traced=0)
>     at subr_syscall.c:134
> #8  0xffffffff80c9c90b in Xfast_syscall ()
>     at /usr/src/sys/amd64/amd64/exception.S:391
> #9  0x00000008008a02fa in ?? ()


-- 
Regards,
Bryan Drewery

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