Re: kern/57007: NetBSD/amd64 9.99.99 on AMD Ryzen 7 5800U is very unstable

[Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>]

The following reply was made to PR kern/57007; it has been noted by GNATS.

From: Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>
To: gnats-bugs%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/57007: NetBSD/amd64 9.99.99 on AMD Ryzen 7 5800U is very
 unstable
Date: Tue, 13 Sep 2022 10:19:03 +0900

 Hi,
 
 Could you show me your kernel configuration?
 
 On 2022/09/13 4:35, ryoon%NetBSD.org@localhost wrote:
 >> Number:         57007
 >> Category:       kern
 >> Synopsis:       NetBSD/amd64 9.99.99 on AMD Ryzen 7 5800U is very unstable
 >> Confidential:   no
 >> Severity:       serious
 >> Priority:       medium
 >> Responsible:    kern-bug-people
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Mon Sep 12 19:35:00 +0000 2022
 >> Originator:     Ryo ONODERA
 >> Release:        NetBSD 9.99.99
 >> Organization:
 > Ryo ONODERA // ryo%tetera.org@localhost
 > PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB  FD1B F404 27FA C7D1 15F3
 >> Environment:
 > 	
 > 	
 > System: NetBSD brownie 9.99.99 NetBSD 9.99.99 (DTRACE8) #9: Mon Sep 12 12:30:43 JST 2022 ryoon@brownie:/usr/world/9.99/amd64/obj/sys/arch/amd64/compile/DTRACE8 amd64
 > Architecture: x86_64
 > Machine: amd64
 >> Description:
 > After this commit
 > https://mail-index.netbsd.org/source-changes/2022/09/12/msg140933.html
 > NetBSD/amd64 under HP Envy 13 ay1000 (AMD Ryzen 7 5800U) panics.
 > In some case, I cannot get kernel coredumps.
 > The backtraces from crash(8) are as follows.
 > 
 > $ crash -M netbsd.16.core -N netbsd.16
 > Crash version 9.99.99, image version 9.99.99.
 > crash: _kvm_kvatop(0)
 > Kernel compiled without options LOCKDEBUG.
 > System panicked: trap
 > Backtrace from time of crash is available.
 > crash> bt
 > __kernel_end() at 0
 > kern_reboot() at sys_reboot
 > vpanic() at vpanic+0x18d
 > panic() at vprintf
 > trap() at startlwp
 > --- trap (number 6) ---
 > copyin() at copyin+0x2f
 > ubc_uiomove() at ubc_uiomove+0x104
 > ffs_write() at ffs_write+0x265
 > VOP_WRITE() at VOP_WRITE+0xa6
 > vn_write() at vn_write+0x10e
 > dofilewrite() at dofilewrite+0x80
 > sys_write() at sys_write+0x49
 > syscall() at syscall+0x1fc
 > --- syscall (number 4) ---
 > syscall+0x1fc:
 > crash>
 > 
 > $ crash -M netbsd.0.core -N netbsd.0
 > Crash version 9.99.99, image version 9.99.99.
 > crash: _kvm_kvatop(0)
 > Kernel compiled without options LOCKDEBUG.
 > System panicked: fpudna from kernel, ip 0xffffffff806cd916, trapframe 0xffffd30423673c90
 > Backtrace from time of crash is available.
 > crash> bt
 > __kernel_end() at 0
 > kern_reboot() at sys_reboot
 > vpanic() at vpanic+0x18d
 > panic() at vprintf
 > fpudna() at fpu_set_default_cw
 > Xtrap07() at Xtrap07+0xb5
 > uvm_swap_io() at uvm_swap_io+0x4c3
 > swapcluster_flush() at swapcluster_flush+0x50
 > uvm_pageout() at uvm_pageout+0x391
 > crash>
 > 
 > And after this commit
 > https://mail-index.netbsd.org/source-changes/2022/09/12/msg140933.html
 > my situation becomes worse.
 > My environment suddenly stops and I cannot get kernel coredumps.
 > 	
 >> How-To-Repeat:
 > Run NetBSD/amd64 9.99.99 on HP Envy 13 ay1000 laptop.
 > 	
 >> Fix:
 > I have no idea.
 > 	
 > 
 >> Unformatted:
 >   	
 >   	
 
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 Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>