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AJvYcCWhw0i2KIenu60PLlSrkO5mHncnl+yahFfHMH5rTLc29I5p69A36b6GN7rfKinVXS1MWPPLpI1mYR/ukvQnyNQ3t80= X-Gm-Message-State: AOJu0Yyp9UCXv09/tm9Tj6DKo+idNeCLEG7EzPXUwRDsYMsF9U7hC/CZ ah273cJF58edlvyppCUDXeLXoMFE0yKXjRT9ymQUfduZM/lyLIUhvO/34fSyMy5rHXuAoKYxoGD LETHD298Wzw0jSPevhro0ukjLX7w= X-Google-Smtp-Source: AGHT+IF/IGsg58iKG3GnfQw+6W1bKQo6nzfvGP/3nOOGv8qkaWDadLz8++6LC/scQFwOoZMV4Hgy5eSjT7gI5UTPQr0= X-Received: by 2002:a5d:59a8:0:b0:368:747c:5a05 with SMTP id ffacd0b85a97d-36b5cf2534emr8775942f8f.36.1722347025779; Tue, 30 Jul 2024 06:43:45 -0700 (PDT) MIME-Version: 1.0 References: <20240729022316.92219-1-andrey.konovalov@linux.dev> In-Reply-To: From: Andrey Konovalov Date: Tue, 30 Jul 2024 15:43:34 +0200 Message-ID: Subject: Re: [PATCH] usb: gadget: dummy_hcd: execute hrtimer callback in softirq context To: Alan Stern Cc: Marcello Sylvester Bauer , andrey.konovalov@linux.dev, Greg Kroah-Hartman , Dmitry Vyukov , Aleksandr Nogikh , Marco Elver , Alexander Potapenko , kasan-dev@googlegroups.com, Andrew Morton , linux-mm@kvack.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, syzbot+2388cdaeb6b10f0c13ac@syzkaller.appspotmail.com, syzbot+17ca2339e34a1d863aad@syzkaller.appspotmail.com, stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: phuiay5kjpmmepgs7adbg9173g5ddeee X-Rspamd-Queue-Id: 959E240002 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1722347027-838107 X-HE-Meta: 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 oA+Tihh4 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jul 29, 2024 at 8:01=E2=80=AFPM Alan Stern wrote: > > > And I also found one more: > > > > Reported-by: syzbot+edd9fe0d3a65b14588d5@syzkaller.appspotmail.com > > Closes: https://syzkaller.appspot.com/bug?extid=3Dedd9fe0d3a65b14588d5 > > You need to be careful about claiming that this patch will fix those bug > reports. At least one of them (the last one above) still fails with the > patch applied. See: > > https://lore.kernel.org/linux-usb/ade15714-6aa3-4988-8b45-719fc9d74727@ro= wland.harvard.edu/ > > and the following response. Ah, right, that one is something else, so let's not add those last Reported-by/Closes. However, that crash was bisected to the same guilty patch, so the issue is somehow related. Even if we were to mark it as to be fixed with the patch I sent, this wouldn't be critical: syzbot would just rereport it, and with fresher stack traces. Thank you!