Re: port-amd64/52596 (Another netbsd-8 panic)

[coypu%sdf.org@localhost]

The following reply was made to PR port-amd64/52596; it has been noted by GNATS.

From: coypu%sdf.org@localhost
To: Dominik Bialy <dmb%yenn.ulegend.net@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: port-amd64/52596 (Another netbsd-8 panic)
Date: Wed, 11 Oct 2017 13:51:42 +0000

 panic: kernel diagnostic assertion "(pte & PG_G) == 0 || pm == pmap_kernel()" failed: file "/usr/src/sys/arch/x86/x86/pmap_tlb.c", line 229
 cpu0: Begin traceback...
 vpanic() at netbsd:vpanic+0x140
 ch_voltag_convert_in() at netbsd:ch_voltag_convert_in
 pmap_tlb_shootdown() at netbsd:pmap_tlb_shootdown+0x51
 pmap_remove_pte() at netbsd:pmap_remove_pte+0x212
 pmap_remove() at netbsd:pmap_remove+0x23d
 uvm_unmap_remove() at netbsd:uvm_unmap_remove+0x207
 uvmspace_free() at netbsd:uvmspace_free+0xe4
 exit1() at netbsd:exit1+0x1a0
 sigexit() at netbsd:sigexit+0x15a
 sendsig() at netbsd:sendsig
 lwp_userret() at netbsd:lwp_userret+0x1be
 trap() at netbsd:trap+0x926
 --- trap (number 3) ---
 73a2a28a3ffc:
 cpu0: End traceback...
 
 That looks like it might be related to the memory corruption, but I
 don't know much about x86 or pmaps.