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spf=none smtp.mailfrom=linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rjxfqgCXiXO9gCB75PlrlEV4c2M5JvuuJMyLPtiqE3U=; b=DwKMXCGbAbJOgt+qGyqeKCMew kvuhOnIzNRO6kFVkH7KWN9SMNe7+0JlUpab/2kgym3DE6g3pt2OSZG4RIDNeoEUeIzp641V9mYpz9 8RZGmZYfjElmDcwwfCu2XBQq9O3/xD/I/7tOtp8B7ht7e58leFsD631w0F530ztTXVNhdq2B1XILG uVk8mgYCcRwOQ/eJ95kl6ys+tlxLR/wms6eVLOfc/MkaS/UTyAfD+8JjCcNZBDA4SZ1gsYIbm4v8M b+0CIs1kcHjPjD0G2ajs251zLpW/5tg50u1n3m9My4lZTiGWnmRf/BT8rRa79Z6Spmy2xb5XtKU+f LkcY7rYqg==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lSJz9-00D5rU-Bb; Fri, 02 Apr 2021 13:37:15 +0000 Received: from email6.ustc.edu.cn ([2001:da8:d800::8] helo=ustc.edu.cn) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lSJz4-00D5qp-64 for linux-riscv@lists.infradead.org; Fri, 02 Apr 2021 13:37:12 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mail.ustc.edu.cn; s=dkim; h=Received:Date:From:To:Cc:Subject: Message-ID:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=tZ/LaANIi5M7NtxlP10sRG+XBo+hd4rG5q oxm75toyo=; b=PONDGZ1YFHa6lf9fRfKb0aqAiq72Q3hH/M+WnB59LbD4AI3vkb TnEPvgc8X7CZbveXLxz5Gj1RvGzpCbKn6/byBaRxFWMb+Hl8PaTJ906+JSb7p7sZ olfHi/XLf04+d4GMzyBFTuSyzCndjzLzwyz8Qow2ekl0IYgz5yCTkeME8= Received: from xhacker (unknown [101.86.19.180]) by newmailweb.ustc.edu.cn (Coremail) with SMTP id LkAmygAXIqz_HWdgWQSLAA--.8753S2; Fri, 02 Apr 2021 21:37:04 +0800 (CST) Date: Fri, 2 Apr 2021 21:32:06 +0800 From: Jisheng Zhang To: "liaochang (A)" Cc: Masami Hiramatsu , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guo Ren , , Subject: Re: [PATCH] riscv: keep interrupts disabled for BREAKPOINT exception Message-ID: <20210402213206.7db93785@xhacker> In-Reply-To: <096752a7-21f9-8339-2e76-8c65859fa1d7@huawei.com> References: <20210330021624.2b776386@xhacker> <20210330183316.942215efe8e6e8455ad14113@kernel.org> <20210331222244.45a5807c@xhacker> <096752a7-21f9-8339-2e76-8c65859fa1d7@huawei.com> MIME-Version: 1.0 X-CM-TRANSID: LkAmygAXIqz_HWdgWQSLAA--.8753S2 X-Coremail-Antispam: 1UD129KBjvJXoW7WF45trWrAr4xCFW7WF1Dtrb_yoW8AryrpF WDJa15KF4kJw18Cas2yw1F9ryFyayrGrWfur98Cw1ftrsxt3s5JryIgFW3Wr1rGr12kw1S vFWYyry2qa48ArJanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUyFb7Iv0xC_Cr1lb4IE77IF4wAFF20E14v26r4j6ryUM7CY07I2 0VC2zVCF04k26cxKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r1j6r18M28lY4IEw2IIxxk0rw A2F7IY1VAKz4vEj48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xII jxv20xvEc7CjxVAFwI0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I 8E87Iv6xkF7I0E14v26rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI 64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r106r15McIj6I8E87Iv67AKxVWUJVW8Jw Am72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IY64vIr41l42xK82IYc2Ij64vIr41l4I8I3I0E 4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGV WUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_ Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rV W3JVWrJr1lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8 JrUvcSsGvfC2KfnxnUUI43ZEXa7IU1GQ6JUUUUU== X-CM-SenderInfo: xmv2xttqjtqzxdloh3xvwfhvlgxou0/ X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210402_143711_067749_C5A84511 X-CRM114-Status: GOOD ( 13.85 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gVGh1LCAxIEFwciAyMDIxIDE2OjQ5OjQ3ICswODAwCiJsaWFvY2hhbmcgKEEpIiA8bGlhb2No YW5nMUBodWF3ZWkuY29tPiB3cm90ZToKCj4gSGkgSmlzaGVuZywKCkhpLAoKPiAKPiDlnKggMjAy MS8zLzMxIDIyOjIyLCBKaXNoZW5nIFpoYW5nIOWGmemBkzoKPiA+IE9uIFR1ZSwgMzAgTWFyIDIw MjEgMTg6MzM6MTYgKzA5MDAKPiA+IE1hc2FtaSBIaXJhbWF0c3UgPG1oaXJhbWF0QGtlcm5lbC5v cmc+IHdyb3RlOgo+ID4gICAKPiA+PiBIaSBKaXNoZW5nLCAgCj4gPiAKPiA+IEhpIE1hc2FtaSwK PiA+ICAgCj4gPj4KPiA+PiBPbiBUdWUsIDMwIE1hciAyMDIxIDAyOjE2OjI0ICswODAwCj4gPj4g SmlzaGVuZyBaaGFuZyA8anN6aGFuZzNAbWFpbC51c3RjLmVkdS5jbj4gd3JvdGU6Cj4gPj4gIAo+ ID4+PiBGcm9tOiBKaXNoZW5nIFpoYW5nIDxqc3poYW5nQGtlcm5lbC5vcmc+Cj4gPj4+Cj4gPj4+ IEN1cnJlbnQgcmlzY3YncyBrcHJvYmUgaGFuZGxlcnMgYXJlIHJ1biB3aXRoIGJvdGggcHJlZW1w dGlvbiBhbmQKPiA+Pj4gaW50ZXJydXB0IGVuYWJsZWQsIHRoaXMgdmlvbGF0ZXMga3Byb2JlIHJl cXVpcmVtZW50cy4gRml4IHRoaXMgaXNzdWUKPiA+Pj4gYnkga2VlcGluZyBpbnRlcnJ1cHRzIGRp c2FibGVkIGZvciBCUkVBS1BPSU5UIGV4Y2VwdGlvbi4gICAgCj4gPj4KPiA+PiBOb3Qgb25seSB3 aGlsZSB0aGUgYnJlYWtwb2ludCBleGNlcHRpb24gYnV0IGFsc28gdW50aWwgdGhlIGVuZCBvZgo+ ID4+IHRoZSBzaW5nbGUgc3RlcCAobWF5YmUgeW91IGFyZSB1c2luZyBfX0JVR19JTlNOXzMyID8/ KSBuZWVkIHRvIGJlCj4gPj4gZGlzYWJsZSBpbnRlcnJ1cHRzLiBDYW4gdGhpcyBkbyB0aGF0Pwo+ ID4+ICAKPiA+IAo+ID4gaW50ZXJydXB0IGlzIGRpc2FibGVkIGR1cmluZyAic2luZ2xlIHN0ZXAi IGJ5IGtwcm9iZXNfc2F2ZV9sb2NhbF9pcnFmbGFnKCkKPiA+IGFuZCBrcHJvYmVzX3Jlc3RvcmVf bG9jYWxfaXJxZmxhZygpLiBUaGUgY29kZSBmbG93IGxvb2tzIGxpa2U6IAo+ID4gCj4gPiBkb190 cmFwX2JyZWFrKCkgICAvLyBmb3IgYnAKPiA+ICAga3Byb2JlX2JyZWFrcG9pbnRfaGFuZGxlcigp Cj4gPiAgICAgc2V0dXBfc2luZ2xlc3RlcCgpCj4gPiAgICAgICBrcHJvYmVzX3Jlc3RvcmVfbG9j YWxfaXJxZmxhZygpCj4gPiAKPiA+IGRvX3RyYXBfYnJlYWsoKSAgLy8gZm9yIHNzCj4gPiAgIGtw cm9iZV9zaW5nbGVfc3RlcF9oYW5kbGVyKCkKPiA+ICAgICBrcHJvYmVzX3Jlc3RvcmVfbG9jYWxf aXJxZmxhZygpICAKPiAKPiBSZWNlbnRseSwga2VybmVsIGhpdCBCVUdfT04oKSBvbiBRRU1VIGFm dGVyIEkgaW5zdGFsbCBhIHByb2JlIGF0ICJzeXNfcmVhZCIgdmlhIGtwcm9iZSwKClRJUFM6IEVh Y2ggbGluZSBzaG91bGQgbm90IGV4Y2VlZCA4MCBjaGFycwoKPiBhY2NvcmlkaW5nIHRvIG15IGRl YnVnZ2luZyBhbmQgYW5hbHlzaXMgaXQgbG9va3MgbGlrZSBjYXVzZWQgYnkgdGhlICJpcnEgZGlz YWJsZSIgb3BlcmF0aW9uIGZvciBzaW5nbGUtc3RlcHBpbmcuCj4gCj4gSSBwcmVzZW50IGEgZGV0 YWlsZWQgZGVzY3JpcHRpb24gYWJvdXQgdGhpcyBwcm9ibGVtIGluIHRoZSBtYWlsIHdpdGggdGl0 bGUgIltQQVRDSF0gcmlzY3Yva3Byb2JlOiBmaXgga2VybmVsIHBhbmljIHdoZW4gaW52b2tpbmcg c3lzX3JlYWQgdHJhY2VkIGJ5IGtwcm9iZSIuCj4gTG9va2luZyBmb3J3YXJkIHRvIHNvbWUgZmVl ZGJhY2ssVGhhbmtzLgo+IAoKSSB3aWxsIGNvbW1lbnQgdGhhdCBwYXRjaC4KCnRoYW5rcwoKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LXJpc2N2 IG1haWxpbmcgbGlzdApsaW51eC1yaXNjdkBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0 cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtcmlzY3YK