nice. double free from mdb_recycle().

function living up to its name :)

well, yes. but there is just one thread and mdb_recycle() should set frame f_mblks to NULL

and yet all mem blocks I have checked so far have been freed...

:D

ok, and it is easy to replicate: start mdb with some core, press tab and then on more prompt press q - and there is fresh core:D

fortunately umem log can help us there...

Bug #16564

fenix illumos 16564

BUG 16564: mdb does double free after quitting tab complete (New)

↳ illumos.org/issues/16564

In presumably unrelated news, at some point in the last few months, a large "MDB" was painted on a fence just north of the I-280 freeway at the Cupertino-Santa Clara border, near Apple HQ.

Unlikely to be a reference to either our debugger or Google's machine database.

so, if medb prompt has :: and you press tab, nothing bad will happen, but tab completing symbols will end up with abort:)

Does anyone know if the SUNWhd package for locating disks on the X4500/X4540 is floating around in illumos anywhere, or was that license encumbered?

it wasn't in the base OS, I don't know if it was ever available as source

I feel like if you have a thumper, the fma topology and diskinfo(8) might help

tsoome_: I have had mdb abort in symbol completion, unrelated to the ::

but unfortunately not in a place I could get cores that were useful to anyone

diskinfo wasn't super helpful but thankfully the 4540 flavor thumper has reasonable target layout compared to the 4500 - under illumos the controller numbers are mixed up, but I found the disk via serial.

hm, I thought `diskinfo -P` would have said something

I'll double check if it manages to finish booting

Speaking of which if anyone has a 4540 SC or bare system board they want to part with I'd be interested, the SP and VGA are toast on mine so I'm mostly flying blind

Ah found my pre-reboot terminal, yeah, all the columns after PID in diskinfo -P are blank (-) in my case

[illumos-gate] 14321 loader.efi: to preserve heap space, use AllocatePages() for shadow_fb -- Toomas Soome <tsoome⊙mc>

so I really made a mess in the tools makefiles, and now I want to make a different, better mess, and it is punishing me

richlowe: "I really X, and now I want Y, and it is punishing me," works for multiple sets of {X, Y}..

oh, there's more to come

Of that I have no doubt.