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Sat, 31 Jan 2026 12:03:02 -0800 (PST) MIME-Version: 1.0 References: <20251118051604.3868588-1-viro@zeniv.linux.org.uk> <2026012715-mantra-pope-9431@gregkh> <20260128045954.GS3183987@ZenIV> <20260129032335.GT3183987@ZenIV> <20260129225433.GU3183987@ZenIV> In-Reply-To: From: Samuel Wu Date: Sat, 31 Jan 2026 12:02:51 -0800 X-Gm-Features: AZwV_QhcEbOb_GQTelufeNwJJCU6MsAWKA6Gjz0fMmR9BpLj1Kmi7hMzQGebBBY Message-ID: Subject: Re: [PATCH v4 00/54] tree-in-dcache stuff To: Krishna Kurapati PSSNV Cc: Al Viro , Greg KH , linux-fsdevel@vger.kernel.org, torvalds@linux-foundation.org, brauner@kernel.org, jack@suse.cz, raven@themaw.net, miklos@szeredi.hu, neil@brown.name, a.hindborg@kernel.org, linux-mm@kvack.org, linux-efi@vger.kernel.org, ocfs2-devel@lists.linux.dev, kees@kernel.org, rostedt@goodmis.org, linux-usb@vger.kernel.org, paul@paul-moore.com, casey@schaufler-ca.com, linuxppc-dev@lists.ozlabs.org, john.johansen@canonical.com, selinux@vger.kernel.org, borntraeger@linux.ibm.com, bpf@vger.kernel.org, clm@meta.com, android-kernel-team Content-Type: text/plain; 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One thing I'm rechecking and is > > worth mentioning is the lockdep below: it's been present for quite > > some time now, but I'm not sure if it would have some undesired > > interaction with your patch. > > > > [ BUG: Invalid wait context ] > > 6.18.0-rc5-mainline-maybe-dirty-4k > > ----------------------------- > > irq/360-dwc3/352 is trying to lock: > > ffffff800792deb8 (&psy->extensions_sem){.+.+}-{3:3}, at: > > __power_supply_set_property+0x40/0x180 > > other info that might help us debug this: > > context-{4:4} > > 1 lock held by irq/360-dwc3/352: > > #0: ffffff8017bb98f0 (&gi->spinlock){....}-{2:2}, at: > > configfs_composite_suspend+0x28/0x68 > > Call trace: > > show_stack+0x18/0x28 (C) > > __dump_stack+0x28/0x3c > > dump_stack_lvl+0xac/0xf0 > > dump_stack+0x18/0x3c > > __lock_acquire+0x794/0x2bec > > lock_acquire+0x148/0x2cc > > down_read+0x3c/0x194 > > __power_supply_set_property+0x40/0x180 > > power_supply_set_property+0x14/0x20 > > dwc3_gadget_vbus_draw+0x8c/0xcc > > usb_gadget_vbus_draw+0x48/0x130 > > composite_suspend+0xcc/0xe4 > > configfs_composite_suspend+0x44/0x68 > > dwc3_thread_interrupt+0x8f8/0xc88 > > irq_thread_fn+0x48/0xa8 > > irq_thread+0x150/0x31c > > kthread+0x150/0x280 > > ret_from_fork+0x10/0x20 > > > > Hi Samuel, > > Not sure if it helps, but Prashanth recently pushed a patch to > address this vbus_draw kernel panic: > https://lore.kernel.org/all/20260129111403.3081730-1-prashanth.k@oss.qua= lcomm.com/ > > Can you check if it fixes the above crash in vbus_draw. > > Regards, > Krishna, Tested above patch, and it didn't fix the device enumerating on lsusb/ADB issue. Seems like usb dwc3 lockdep was a red herring. I'll respond on that thread with what I'm observing.