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Received: from 75-166-225-82.hlrn.qwest.net ([75.166.225.82]:60144 helo=bapiya) by box5379.bluehost.com with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.99.5) (envelope-from ) id 1wuFf0-00000003zOM-0aSG; Wed, 12 Aug 2026 14:34:50 -0600 From: Tom Tromey To: Andrew Burgess Cc: Jerry Zhang Jian , gdb-patches@sourceware.org, kito.cheng@sifive.com Subject: Re: [PATCH] gdb: invalidate register cache after monitor commands In-Reply-To: <877blxkpau.fsf@redhat.com> (Andrew Burgess's message of "Tue, 11 Aug 2026 09:57:13 +0100") References: <20260811035205.26485-1-jerry.zhangjian@sifive.com> <877blxkpau.fsf@redhat.com> X-Attribution: Tom Date: Wed, 12 Aug 2026 14:34:48 -0600 Message-ID: <87wltvulg7.fsf@tromey.com> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box5379.bluehost.com X-AntiAbuse: Original Domain - sourceware.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - tromey.com X-BWhitelist: no X-Source-IP: 75.166.225.82 X-Source-L: No X-Exim-ID: 1wuFf0-00000003zOM-0aSG X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 75-166-225-82.hlrn.qwest.net (bapiya) [75.166.225.82]:60144 X-Source-Auth: tom+tromey.com X-Email-Count: 11 X-Org: HG=bhshared;ORG=bluehost; X-Source-Cap: ZWx5bnJvYmk7ZWx5bnJvYmk7Ym94NTM3OS5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-CMAE-Envelope: MS4xfBGCbSKrqzUT5CWd6Pf2FPb5Fi/POlriYX1C7Ut/+9FIc3UPUsD+CUOFJkUOgdPC1z1WwI8INSU60s0NyM2yDPf9Feo96qOLAc9Uh8TTjgoPqtlfy5Sg D5+3IPbrddUQxDhPkrM2HKfG6GXfUwpg8bqndEdvEuuTym4JNpRP/oHM27cwdfbGy7ONgKdTLitu2clEurmF8GPaYeQrKFiChuA= X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org >>>>> "Andrew" == Andrew Burgess writes: Andrew> I don't find any of these example particularly clear. They all kind of Andrew> hint towards a problem, but it would be nice to have at least one fully Andrew> explained case. I wonder also if this conceptually conflicts with your patch "avoid switching threads for send_packet where possible". In that patch, you mention an unwinder sending a remote packet during unwinding. If that packet happens to be a 'monitor' command, then presumably something bad will happen due to flushing the register cache while unwinding. Tom