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List: netbsd-bugs
Subject: Re: kern/52937: NetBSD 8.0_BETA panics in pmap_remove_pte
From: Alexander Nasonov <alnsn () yandex ! ru>
Date: 2018-01-25 0:25:01
Message-ID: 20180125002501.A2258806D5 () mollari ! NetBSD ! org
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The following reply was made to PR kern/52937; it has been noted by GNATS.
From: Alexander Nasonov <alnsn@yandex.ru>
To: gnats-bugs@NetBSD.org
Cc: kern-bug-people@netbsd.org, gnats-admin@netbsd.org,
netbsd-bugs@netbsd.org
Subject: Re: kern/52937: NetBSD 8.0_BETA panics in pmap_remove_pte
Date: Thu, 25 Jan 2018 00:24:40 +0000
Alexander Nasonov wrote:
> This time it crashed differently:
>
> panic: pmap_remove_pte: PG_PVLIST with pv-untracked page va = 0x7f7eba200000 pa = \
0xffe8dea6c0000 (0xffe8dea6c0)
It crashed again:
panic: kernel diagnostic assertion "(pte & PG_G) == 0 || pm == pmap_kernel()" \
failed: file "/path/to/src/sys/arch/x86/x86/pmap_tlb.c", line 229 WARNING: SPL NOT \
LOWERED ON TRAP EXIT 7 0 cpu7: 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) ---
cpu7: End traceback...
dumping to dev 20,1 (offset=327, size=8272343):
dump device not ready
Alex
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