[Bug 234906] kernel panic: softdep_setup_inomapdep: dependency 0xfffff80107d15c00 for newinode already exists

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234906

--- Comment #18 from johan van Zanten <johanvz816 at giantfoo.org> ---
Thanks for the suggestions Kirk & Conrad.

I'll do some experiments this weekend and see if i can come up with a way to
reliably trigger the panic, and then look at disabling TRIM and then the disk's
write cache.

As for the disk cache on the hard disk, here's information about it:

dejacque:~ # camcontrol identify da0
pass3: <HGST HTS541010A9E680 JA0OA560> ATA8-ACS SATA 3.x device
pass3: 40.000MB/s transfers

protocol              ATA/ATAPI-8 SATA 3.x
device model          HGST HTS541010A9E680
firmware revision     JA0OA560
serial number         JD1008DM0W2BEV
WWN                   5000cca827cc4ee9
cylinders             16383
heads                 16
sectors/track         63
sector size           logical 512, physical 4096, offset 0
LBA supported         268435455 sectors
LBA48 supported       1953525168 sectors
PIO supported         PIO4
DMA supported         WDMA2 UDMA6 
media RPM             5400
Zoned-Device Commands no

Feature                      Support  Enabled   Value           Vendor
read ahead                     yes      yes
write cache                    yes      yes
flush cache                    yes      yes
overlap                        no
Tagged Command Queuing (TCQ)   no       no
Native Command Queuing (NCQ)   yes              32 tags
NCQ Queue Management           no
NCQ Streaming                  no
Receive & Send FPDMA Queued    no
SMART                          yes      yes
microcode download             yes      yes
security                       yes      no
power management               yes      yes
advanced power management      yes      yes     128/0x80
automatic acoustic management  no       no
media status notification      no       no
power-up in Standby            yes      no
write-read-verify              no       no
unload                         yes      yes
general purpose logging        yes      yes
free-fall                      no       no
Data Set Management (DSM/TRIM) no
Host Protected Area (HPA)      yes      no      1953525168/1953525168
HPA - Security                 no

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