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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Anti-Virus-Server: fsav301.rs.sakura.ne.jp X-Virus-Status: clean X-Rspamd-Queue-Id: DA0D81A0012 X-Stat-Signature: y61nroa15mbxtckfxonntidcd5beepcx X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1729067453-9984 X-HE-Meta: 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 gQeSEPQX 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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 2024/10/16 16:14, Greg Kroah-Hartman wrote: > On Wed, Oct 16, 2024 at 08:06:20AM +0100, Lorenzo Stoakes wrote: >> + some people from USB/HID subsystem. >> >> This is really not looking mm-related, as for a second time we've asked >> syzbot to re-run and for a second time it's not hit any mm-specific code - >> I think this is misattributed - could somebody from the USB/HID side take a >> look? >> >> It looks to be something that isn't reproduced by a specific C program but >> by a syzkaller USB configuration [0]? > > There's a lot of odd usb syzbot issues right now dealing with the dummy > hcd controller, so maybe this is another one of them... This is a printk() flooding stall triggered by SysRq-t. sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7557 show_state_filter+0xee/0x320 kernel/sched/core.c:7627 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541