https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=204521

--- Comment #67 from h...@restart.be ---
I complete/update the write code but when mounting a msdosfs I get:

panic: general protection fault
cpuid = 3
time = 1590504848
KDB: stack backtrace:
#0 0xffffffff80695005 at kdb_backtrace+0x65
#1 0xffffffff8064a7ab at vpanic+0x17b
#2 0xffffffff8064a623 at panic+0x43
#3 0xffffffff80a0b301 at trap_fatal+0x391
#4 0xffffffff80a0a787 at trap+0x67
#5 0xffffffff809e4728 at calltrap+0x8
#6 0xffffffff806f387e at bufwrite+0x1fe
#7 0xffffffff807294c0 at vn_fsync_buf+0x250
#8 0xffffffff80aaa84b at VOP_FSYNC_APV+0x7b
#9 0xffffffff806f3a0b at bufsync+0x3b
#10 0xffffffff8071410d at bufobj_invalbuf+0x1ad
#11 0xffffffff807173fe at vgonel+0x17e
#12 0xffffffff80717a46 at vgone+0x36
#13 0xffffffff8052a7f7 at devfs_delete+0x177
#14 0xffffffff8052ad36 at devfs_populate_loop+0x1e6
#15 0xffffffff8052ab3a at devfs_populate+0x2a
#16 0xffffffff8052fbbb at devfs_populate_vp+0x9b
#17 0xffffffff8052dc0b at devfs_lookup+0x2b
Uptime: 53m47s

with sysctl debug.bootverbose=1 :

rtsx0: rtsx_mmcbr_request(CMD17 arg 0x40001 flags 0x35 dlen 512 dflags 0x2)
rtsx0: rtsx_xfer_short() - Read xfer: 512 bytes with block size 512
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_mmcbr_release_host()
rtsx0: rtsx_mmcbr_acquire_host()
rtsx0: rtsx_mmcbr_request(CMD17 arg 0x40000 flags 0x35 dlen 512 dflags 0x2)
rtsx0: rtsx_xfer_short() - Read xfer: 512 bytes with block size 512
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_mmcbr_release_host()
rtsx0: rtsx_mmcbr_acquire_host()
rtsx0: rtsx_mmcbr_request(CMD17 arg 0x40001 flags 0x35 dlen 512 dflags 0x2)
rtsx0: rtsx_xfer_short() - Read xfer: 512 bytes with block size 512
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_mmcbr_release_host()
rtsx0: rtsx_mmcbr_acquire_host()
rtsx0: rtsx_mmcbr_request(CMD17 arg 0x40000 flags 0x35 dlen 512 dflags 0x2)
rtsx0: rtsx_xfer_short() - Read xfer: 512 bytes with block size 512
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_send_cmd()
rtsx0: Interrupt handler - enabled: 0x32000000, status: 0xa0010000
rtsx0: rtsx_mmcbr_release_host()


Fatal trap 9: general protection fault while in kernel mode

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