回复: 回复: Question on KASAN calltrace record in RT

发件人: Mike Galbraith 发送时间: 2021年4月14日 15:56 收件人: Zhang, Qiang; Dmitry Vyukov 抄送: Andrew Halaney; andreyk...@gmail.com; ryabinin@gmail.com; a...@linux-foundation.org; linux-kernel@vger.kernel.org; kasan-...@googlegroups.com 主题: Re: 回复: Question on

回复: Question on KASAN calltrace record in RT

发件人: Mike Galbraith 发送时间: 2021年4月14日 12:00 收件人: Dmitry Vyukov; Zhang, Qiang 抄送: Andrew Halaney; andreyk...@gmail.com; ryabinin@gmail.com; a...@linux-foundation.org; linux-kernel@vger.kernel.org; kasan-...@googlegroups.com 主题: Re: Question on KASAN

回复: Question on KASAN calltrace record in RT

发件人: Dmitry Vyukov 发送时间: 2021年4月13日 23:29 收件人: Zhang, Qiang 抄送: Andrew Halaney; andreyk...@gmail.com; ryabinin@gmail.com; a...@linux-foundation.org; linux-kernel@vger.kernel.org; kasan-...@googlegroups.com 主题: Re: Question on KASAN calltrace record

Question on KASAN calltrace record in RT

Hello everyone In RT system, after Andrew test, found the following calltrace , in KASAN, we record callstack through stack_depot_save(), in this function, may be call alloc_pages, but in RT, the spin_lock replace with rt_mutex in alloc_pages(), if before call this function, the irq is dis

回复: [PATCH v2] loop: call __loop_clr_fd() with lo_mutex locked to avoid autoclear race

发件人: Pavel Tatashin 发送时间: 2021年3月27日 5:41 收件人: Zhang, Qiang 抄送: Jens Axboe; linux-bl...@vger.kernel.org; LKML 主题: Re: [PATCH v2] loop: call __loop_clr_fd() with lo_mutex locked to avoid autoclear race [Please note: This e-mail is from an EXTERNAL e

回复: [PATCH] loop: Fix use of unsafe lo->lo_mutex locks

发件人: Pavel Tatashin 发送时间: 2021年3月25日 21:09 收件人: Zhang, Qiang 抄送: Jens Axboe; linux-bl...@vger.kernel.org; LKML 主题: Re: [PATCH] loop: Fix use of unsafe lo->lo_mutex locks [Please note: This e-mail is from an EXTERNAL e-mail address] >Hi Qiang, &g

回复: [PATCH] loop: Fix use of unsafe lo->lo_mutex locks

发件人: Pavel Tatashin 发送时间: 2021年3月25日 21:09 收件人: Zhang, Qiang 抄送: Jens Axboe; linux-bl...@vger.kernel.org; LKML 主题: Re: [PATCH] loop: Fix use of unsafe lo->lo_mutex locks [Please note: This e-mail is from an EXTERNAL e-mail address] >Hi Qiang, &g

回复: [PATCH v2] bpf: Fix memory leak in copy_process()

Hello Alexei Starovoitov Daniel Borkmann Please review this patch. Thanks Qiang 发件人: Zhang, Qiang 发送时间: 2021年3月15日 16:53 收件人: a...@kernel.org; dan...@iogearbox.net; and...@kernel.org 抄送: dvyu...@google.com; linux-kernel@vger.kernel.org; syzbot

回复: [PATCH] ARM: Fix incorrect use of smp_processor_id() by syzbot report

发件人: Dmitry Vyukov 发送时间: 2021年3月12日 14:30 收件人: Zhang, Qiang 抄送: Russell King - ARM Linux; Andrew Morton; LKML; Linux ARM; syzkaller-bugs 主题: Re: [PATCH] ARM: Fix incorrect use of smp_processor_id() by syzbot report [Please note: This e-mail is from an

回复: possible deadlock in io_poll_double_wake (2)

发件人: Zhang, Qiang 发送时间: 2021年3月3日 20:15 收件人: Jens Axboe; syzbot; asml.sile...@gmail.com; io-ur...@vger.kernel.org; linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org; syzkaller-b...@googlegroups.com; v...@zeniv.linux.org.uk 主题: 回复: possible

回复: possible deadlock in io_poll_double_wake (2)

发件人: Jens Axboe 发送时间: 2021年3月3日 1:20 收件人: syzbot; asml.sile...@gmail.com; io-ur...@vger.kernel.org; linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org; syzkaller-b...@googlegroups.com; v...@zeniv.linux.org.uk 主题: Re: possible deadlock in io_pol

回复: [PATCH v2] workqueue: Move the position of debug_work_activate() in __queue_work()

Hello Tejun Please review this change. Thanks Qiang > >发件人: Zhang, Qiang >发送时间: 2021年2月18日 11:17 >收件人: jiangshan...@gmail.com; t...@kernel.org >抄送: linux-kernel@vger.kernel.org >主题: [PATCH v2] workqueue: Move the position of >deb

回复: possible deadlock in io_poll_double_wake (2)

发件人: Jens Axboe 发送时间: 2021年3月1日 7:08 收件人: syzbot; asml.sile...@gmail.com; io-ur...@vger.kernel.org; linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org; syzkaller-b...@googlegroups.com; v...@zeniv.linux.org.uk 主题: Re: possible deadlock in io_pol

回复: [PATCH] workqueue: Remove rcu_read_lock/unlock() in workqueue_congested()

发件人: Paul E. McKenney 发送时间: 2021年2月18日 23:17 收件人: Lai Jiangshan 抄送: Zhang, Qiang; Tejun Heo; Tejun Heo; LKML 主题: Re: [PATCH] workqueue: Remove rcu_read_lock/unlock() in workqueue_congested() [Please note: This e-mail is from an EXTERNAL e-mail address

回复: [PATCH] workqueue: Move the position of debug_work_activate() in __queue_work()

Hello Tejun Heo Excuse me, do you have time to make some suggestions for this modification? Thanks Qiang 发件人: Zhang, Qiang 发送时间: 2021年2月11日 16:24 收件人: t...@kernel.org; jiangshan...@gmail.com 抄送: linux-kernel@vger.kernel.org 主题: [PATCH] workqueue: Move

回复: 回复: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

发件人: Uladzislau Rezki 发送时间: 2021年2月4日 22:09 收件人: Zhang, Qiang 抄送: Uladzislau Rezki; paul...@kernel.org; j...@joelfernandes.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH v3] kvfree_rcu: Release page cache under memory

回复: [PATCH] uprobes: Fix kasan UAF reported by syzbot

Hello peterz This ("rbtree, uprobes: Use rbtree helpers")modification misses the increase in the reference count , syzbot have been reporting recently . Thanks Qiang 发件人: Zhang, Qiang 发送时间: 2021年2月2日 17:17 收件人: pet...@infradead.org; mi...@

回复: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

发件人: Uladzislau Rezki 发送时间: 2021年2月2日 3:57 收件人: Zhang, Qiang 抄送: ure...@gmail.com; paul...@kernel.org; j...@joelfernandes.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

回复: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

发件人: Uladzislau Rezki 发送时间: 2021年2月2日 3:57 收件人: Zhang, Qiang 抄送: ure...@gmail.com; paul...@kernel.org; j...@joelfernandes.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

回复: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

发件人: Uladzislau Rezki 发送时间: 2021年2月2日 3:57 收件人: Zhang, Qiang 抄送: ure...@gmail.com; paul...@kernel.org; j...@joelfernandes.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v3] kvfree_rcu: Release page cache under memory pressure

回复: [PATCH v2] kvfree_rcu: Release page cache under memory pressure

发件人: Uladzislau Rezki 发送时间: 2021年1月29日 22:19 收件人: Zhang, Qiang 抄送: ure...@gmail.com; paul...@kernel.org; j...@joelfernandes.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v2] kvfree_rcu: Release page cache under memory pressure

回复: [PATCH] PM: remove PF_WQ_WORKER mask

发件人: Rafael J. Wysocki 发送时间: 2021年1月28日 2:16 收件人: Zhang, Qiang 抄送: Rafael Wysocki; Linux PM; Linux Kernel Mailing List 主题: Re: [PATCH] PM: remove PF_WQ_WORKER mask [Please note: This e-mail is from an EXTERNAL e-mail address] On Mon, Jan 25, 2021 at 5

回复: 回复: 回复: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline

发件人: Uladzislau Rezki 发送时间: 2021年1月26日 22:07 收件人: Zhang, Qiang 抄送: Uladzislau Rezki; Paul E. McKenney; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: 回复: 回复: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline > >

回复: [PATCH] PM: remove PF_WQ_WORKER mask

发件人: Zhang, Qiang 发送时间: 2021年1月25日 12:00 收件人: rafael.j.wyso...@intel.com 抄送: linux...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: [PATCH] PM: remove PF_WQ_WORKER mask From: Zqiang Due to kworker also is kernel thread, it's already inc

回复: [PATCH] sched/core: add rcu_read_lock/unlock() protection

发件人: Zhang, Qiang 发送时间: 2021年1月26日 16:29 收件人: valentin.schnei...@arm.com 抄送: pet...@infradead.org; linux-kernel@vger.kernel.org 主题: [PATCH] sched/core: add rcu_read_lock/unlock() protection >From: Zqiang >Due to for_each_process_thread belongs

回复: 回复: 回复: [PATCH 3/3] kvfree_rcu: use migrate_disable/enable()

发件人: Uladzislau Rezki 发送时间: 2021年1月25日 21:49 收件人: Zhang, Qiang 抄送: Uladzislau Rezki; LKML; RCU; Paul E . McKenney; Michael Ellerman; Andrew Morton; Daniel Axtens; Frederic Weisbecker; Neeraj Upadhyay; Joel Fernandes; Peter Zijlstra; Michal Hocko

Question on migrate_disabe/enable()

Hello Peterz, tglx I have some questions about migrate_disabe/enable(), in the past migrate_disabe/enable() is replaced by preempt_disable/enable() in no RT system. And now migrate_disabe/enable() has its own implementation, I want to know in migrate_disabe/enable() critical area is blocking a

回复: 回复: [PATCH 3/3] kvfree_rcu: use migrate_disable/enable()

发件人: Uladzislau Rezki 发送时间: 2021年1月25日 5:57 收件人: Zhang, Qiang 抄送: Uladzislau Rezki (Sony); LKML; RCU; Paul E . McKenney; Michael Ellerman; Andrew Morton; Daniel Axtens; Frederic Weisbecker; Neeraj Upadhyay; Joel Fernandes; Peter Zijlstra; Michal Hocko

回复: 回复: [PATCH 3/3] kvfree_rcu: use migrate_disable/enable()

发件人: Uladzislau Rezki 发送时间: 2021年1月25日 5:57 收件人: Zhang, Qiang 抄送: Uladzislau Rezki (Sony); LKML; RCU; Paul E . McKenney; Michael Ellerman; Andrew Morton; Daniel Axtens; Frederic Weisbecker; Neeraj Upadhyay; Joel Fernandes; Peter Zijlstra; Michal Hocko

回复: 回复: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline

发件人: Uladzislau Rezki 发送时间: 2021年1月22日 22:31 收件人: Zhang, Qiang 抄送: Uladzislau Rezki; Paul E. McKenney; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline On Fri, Jan 22

回复: [PATCH 3/3] kvfree_rcu: use migrate_disable/enable()

> >发件人: Uladzislau Rezki (Sony) >发送时间: 2021年1月21日 0:21 >收件人: LKML; RCU; Paul E . McKenney; Michael Ellerman >抄送: Andrew Morton; Daniel Axtens; Frederic Weisbecker; Neeraj >Upadhyay; Joel >Fernandes; Peter Zijlstra; Michal Hocko; Thomas >Gleixner; Theodore

回复: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline

发件人: Uladzislau Rezki 发送时间: 2021年1月22日 4:26 收件人: Zhang, Qiang 抄送: Paul E. McKenney; r...@vger.kernel.org; linux-kernel@vger.kernel.org; ure...@gmail.com 主题: Re: [PATCH] rcu: Release per-cpu krcp page cache when CPU going offline >Hello, Qiang, >

回复: Question on workqueue: Manually break affinity on hotplug

runq, when wake up, other online CPUs will also be selected to run. what I want to ask is why we take the initiative to set it up? Thanks Qiang 发件人: Peter Zijlstra 发送时间: 2021年1月14日 17:11 收件人: Zhang, Qiang 抄送: linux-kernel@vger.kernel.org 主题: Re: Q

Question on workqueue: Manually break affinity on hotplug

Hello Peter Excuse me, I have some questions for you, about a description of this change: ''Don't rely on the scheduler to force break affinity for us -- it will stop doing that for per-cpu-kthreads." this mean when cpuhotplug, scheduler do not change affinity for per-cpu-kthread's task, if w

回复: KASAN: use-after-free Read in usb_anchor_resume_wakeups (2)

发件人: Zhang, Qiang 发送时间: 2021年1月12日 11:28 收件人: syzbot; a.darw...@linutronix.de; allen.l...@gmail.com; andreyk...@google.com; dvyu...@google.com; el...@google.com; gre...@linuxfoundation.org; gustavo...@kernel.org; linux-kernel@vger.kernel.org; linux

回复: KASAN: use-after-free Read in usb_anchor_resume_wakeups (2)

发件人: syzbot 发送时间: 2021年1月12日 0:11 收件人: a.darw...@linutronix.de; allen.l...@gmail.com; andreyk...@google.com; dvyu...@google.com; el...@google.com; gre...@linuxfoundation.org; gustavo...@kernel.org; linux-kernel@vger.kernel.org; linux-...@vger.kernel.org

回复: KASAN: use-after-free Read in service_outstanding_interrupt

发件人: Oliver Neukum 发送时间: 2021年1月5日 0:28 收件人: syzbot; andreyk...@google.com; gre...@linuxfoundation.org; gustavo...@kernel.org; ingras...@epigenesys.com; lee.jo...@linaro.org; linux-kernel@vger.kernel.org; linux-...@vger.kernel.org; penguin-ker...@i-lov

回复: [PATCH] ipc/sem.c: Convert kfree_rcu() to call_rcu() in freeary function

发件人: Paul E. McKenney 发送时间: 2020年12月31日 0:19 收件人: Zhang, Qiang 抄送: a...@linux-foundation.org; manf...@colorfullife.com; gustavo...@kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] ipc/sem.c: Convert kfree_rcu() to call_rcu() in freeary function

回复: INFO: task hung in ath6kl_usb_destroy (3)

发件人: syzbot 发送时间: 2020年11月30日 23:31 收件人: andreyk...@google.com; da...@davemloft.net; k...@kernel.org; kv...@codeaurora.org; linux-kernel@vger.kernel.org; linux-...@vger.kernel.org; linux-wirel...@vger.kernel.org; net...@vger.kernel.org; syzkaller-b...@

回复: [PATCH] srcu: Remove srcu_cblist_invoking member from sdp

发件人: Paul E. McKenney 发送时间: 2020年11月20日 2:12 收件人: Zhang, Qiang 抄送: jiangshan...@gmail.com; rost...@goodmis.org; j...@joshtriplett.org; r...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] srcu: Remove srcu_cblist_invoking member from sdp

回复: [PATCH] kthread_worker: Add flush delayed work func

发件人: Andrew Morton 发送时间: 2020年11月13日 8:01 收件人: Zhang, Qiang 抄送: pmla...@suse.com; t...@kernel.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] kthread_worker: Add flush delayed work func [Please note this e-mail is from an EXTERNAL

回复: memory leak in __usbhid_submit_report

发件人: syzbot 发送时间: 2020年11月11日 21:55 收件人: benjamin.tissoi...@redhat.com; ji...@kernel.org; linux-in...@vger.kernel.org; linux-kernel@vger.kernel.org; linux-...@vger.kernel.org; syzkaller-b...@googlegroups.com 主题: memory leak in __usbhid_submit_report [P

回复: 回复: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

发件人: Thomas Gleixner 发送时间: 2020年10月28日 17:23 收件人: Zhang, Qiang; pmla...@suse.com; t...@kernel.org 抄送: a...@linux-foundation.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come

回复: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

发件人: Thomas Gleixner 发送时间: 2020年10月28日 16:30 收件人: Zhang, Qiang; pmla...@suse.com; t...@kernel.org 抄送: a...@linux-foundation.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online

回复: [PATCH] io-wq: set task TASK_INTERRUPTIBLE state before schedule_timeout

发件人: Jens Axboe 发送时间: 2020年10月27日 21:35 收件人: Zhang, Qiang 抄送: io-ur...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] io-wq: set task TASK_INTERRUPTIBLE state before schedule_timeout On 10/26/20 9:09 PM, qiang.zh...@windriver.com wrote

回复: Question on io-wq

发件人: Zhang, Qiang 发送时间: 2020年10月23日 11:55 收件人: Jens Axboe 抄送: v...@zeniv.linux.org.uk; io-ur...@vger.kernel.org; linux-kernel@vger.kernel.org; linux-fsde...@vger.kernel.org 主题: 回复: Question on io-wq 发件人: Jens

回复: Question on io-wq

发件人: Jens Axboe 发送时间: 2020年10月22日 22:08 收件人: Zhang, Qiang 抄送: v...@zeniv.linux.org.uk; io-ur...@vger.kernel.org; linux-kernel@vger.kernel.org; linux-fsde...@vger.kernel.org 主题: Re: Question on io-wq On 10/22/20 3:02 AM, Zhang,Qiang wrote: > > H

Question on io-wq

Hi Jens Axboe There are some problem in 'io_wqe_worker' thread, when the 'io_wqe_worker' be create and Setting the affinity of CPUs in NUMA nodes, due to CPU hotplug, When the last CPU going down, the 'io_wqe_worker' thread will run anywhere. when the CPU in the node goes online again, we sh

Question on io-wq

Hi Jens Axboe There are some problem in 'io_wqe_worker' thread, when the 'io_wqe_worker' be create and Setting the affinity of CPUs in NUMA nodes, due to CPU hotplug, When the last CPU going down, the 'io_wqe_worker' thread will run anywhere. when the CPU in the node goes online again, we

回复: 回复: [PATCH] btrfs: Fix missing close devices

发件人: Johannes Thumshirn 发送时间: 2020年9月21日 17:17 收件人: Zhang, Qiang; c...@fb.com; jo...@toxicpanda.com; dste...@suse.com; syzbot+582e66e5edf36a22c...@syzkaller.appspotmail.com 抄送: linux-bt...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH

回复: [PATCH] btrfs: Fix missing close devices

发件人: Johannes Thumshirn 发送时间: 2020年9月21日 16:52 收件人: Zhang, Qiang; c...@fb.com; jo...@toxicpanda.com; dste...@suse.com 抄送: linux-bt...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] btrfs: Fix missing close devices On 21/09/2020 10:27

Re: 回复: RCU: Question on force_qs_rnp

On 9/16/20 2:06 AM, Paul E. McKenney wrote: On Tue, Sep 15, 2020 at 01:16:39PM +0800, Zhang,Qiang wrote: On 9/15/20 11:41 AM, Paul E. McKenney wrote: On Tue, Sep 15, 2020 at 03:18:23AM +, Zhang, Qiang wrote: 发件人: Paul E. McKenney 发送时间: 2020

回复: 回复: [PATCH v3] debugobjects: install CPU hotplug callback

发件人: Waiman Long 发送时间: 2020年9月10日 10:50 收件人: Zhang, Qiang; t...@linutronix.de; mi...@kernel.org; el...@google.com 抄送: linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH v3] debugobjects: install CPU hotplug callback On 9/9/20 9:48 PM, Zhang, Qiang wrote

Re: 回复: RCU: Question on force_qs_rnp

On 9/15/20 11:41 AM, Paul E. McKenney wrote: On Tue, Sep 15, 2020 at 03:18:23AM +, Zhang, Qiang wrote: 发件人: Paul E. McKenney 发送时间: 2020年9月15日 4:56 收件人: Joel Fernandes 抄送: Zhang, Qiang; Uladzislau Rezki; j...@joshtriplett.org; rost

回复: RCU: Question on force_qs_rnp

发件人: Paul E. McKenney 发送时间: 2020年9月15日 4:56 收件人: Joel Fernandes 抄送: Zhang, Qiang; Uladzislau Rezki; j...@joshtriplett.org; rost...@goodmis.org; mathieu.desnoy...@efficios.com; Lai Jiangshan; r...@vger.kernel.org; LKML 主题: Re: RCU: Question on

RCU: Question on force_qs_rnp

Hello Paul I have some questions for you . in force_qs_rnp func , if "f(rdp)" func return true we will call rcu_report_qs_rnp func report a quiescent state for this rnp node, and clear grpmask form rnp->qsmask. after that , can we make a check for this rnp->qsmask, if rnp->qsmask == 0, we w

回复: RCU: Question rcu_preempt_blocked_readers_cgp in rcu_gp_fqs_loop func

发件人: Paul E. McKenney 发送时间: 2020年9月9日 19:22 收件人: Zhang, Qiang 抄送: Joel Fernandes; Uladzislau Rezki; Josh Triplett; Steven Rostedt; Mathieu Desnoyers; Lai Jiangshan; rcu; LKML 主题: Re: RCU: Question rcu_preempt_blocked_readers_cgp in rcu_gp_fqs_loop

回复: [PATCH v3] debugobjects: install CPU hotplug callback

发件人: Waiman Long 发送时间: 2020年9月9日 2:23 收件人: Zhang, Qiang; t...@linutronix.de; mi...@kernel.org; el...@google.com 抄送: linux-kernel@vger.kernel.org 主题: Re: [PATCH v3] debugobjects: install CPU hotplug callback On 9/8/20 2:27 AM, qiang.zh...@windriver.com

RCU: Question rcu_preempt_blocked_readers_cgp in rcu_gp_fqs_loop func

When config preempt RCU, and then there are multiple levels node, the current task is preempted in rcu read critical region. the current task be add to "rnp->blkd_tasks" link list, and the "rnp->gp_tasks" may be assigned a value . these rnp is leaf node in RCU tree. But in "rcu_gp_fqs_

[no subject]

When config preempt RCU, if task switch happened in rcu read critical region. the current task be add to "rnp->blkd_tasks" link list, these rnp is leaf node in RCUtree. In "rcu_gp_fqs_loop" func, static void rcu_gp_fqs_loop(void) { struct rcu_node *rnp = rcu_get_root(); }

回复: [PATCH v2] debugobjects: install cpu hotplug callback

tglx please review. Thanks Qiang 发件人: linux-kernel-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年8月27日 13:06 收件人: t...@linutronix.de; long...@redhat.com; el...@google.com 抄送: linux-kernel@vger.kernel.org 主题: [PATCH v2] debugobjects: insta

回复: 回复: [PATCH] debugobjects: install cpu hotplug callback

发件人: linux-kernel-ow...@vger.kernel.org 代表 Thomas Gleixner 发送时间: 2020年8月26日 7:53 收件人: Waiman Long; Zhang, Qiang; el...@google.com 抄送: linux-kernel@vger.kernel.org; a...@linux-foundation.org 主题: Re: 回复: [PATCH] debugobjects: install cpu hotplug callback

回复: [PATCH] debugobjects: install cpu hotplug callback

发件人: linux-kernel-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年8月20日 11:24 收件人: t...@linutronix.de; el...@google.com; long...@redhat.com 抄送: linux-kernel@vger.kernel.org 主题: [PATCH] debugobjects: install cpu hotplug callback From: Zqian

回复: [PATCH v2] libnvdimm: KASAN: global-out-of-bounds Read in internal_create_group

cc: Dan Williams Please review. 发件人: linux-kernel-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年8月12日 16:55 收件人: dan.j.willi...@intel.com; vishal.l.ve...@intel.com; dave.ji...@intel.com; ira.we...@intel.com 抄送: linux-nvd...@lists.01.org;

回复: [PATCH] rcu: shrink each possible cpu krcp

发件人: linux-kernel-ow...@vger.kernel.org 代表 Joel Fernandes 发送时间: 2020年8月19日 8:04 收件人: Paul E. McKenney 抄送: Uladzislau Rezki; Zhang, Qiang; Josh Triplett; Steven Rostedt; Mathieu Desnoyers; Lai Jiangshan; rcu; LKML 主题: Re: [PATCH] rcu: shrink each

转发: upstream test error: WARNING in do_epoll_wait

> >发件人: linux-kernel-ow...@vger.kernel.org >>代表 syzbot >发送时间: 2020年8月5日 15:19 >收件人: linux-fsde...@vger.kernel.org; linux-kernel@vger.kernel.org; >>syzkaller->b...@googlegroups.com; v...@zeniv.linux.org.uk >主题: upstream test error: WARNING in do_epoll_wa

回复: 回复: [PATCH] ALSA: seq: KASAN: use-after-free Read in delete_and_unsubscribe_port

发件人: Takashi Iwai 发送时间: 2020年8月3日 14:16 收件人: Zhang, Qiang 抄送: pe...@perex.cz; ti...@suse.com; alsa-de...@alsa-project.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH] ALSA: seq: KASAN: use-after-free Read in delete_and_unsubscribe_port On Mon, 03

回复: [PATCH] ALSA: seq: KASAN: use-after-free Read in delete_and_unsubscribe_port

发件人: Takashi Iwai 发送时间: 2020年8月1日 17:39 收件人: Zhang, Qiang 抄送: pe...@perex.cz; ti...@suse.com; alsa-de...@alsa-project.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] ALSA: seq: KASAN: use-after-free Read in delete_and_unsubscribe_port On Sat, 01 Aug

回复: [PATCH v3] mm/slab.c: add node spinlock protect in __cache_free_alien

发件人: Zhang, Qiang 发送时间: 2020年7月31日 9:27 收件人: David Rientjes 抄送: c...@linux.com; penb...@kernel.org; iamjoonsoo@lge.com; a...@linux-foundation.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: 回复: [PATCH v3] mm/slab.c: add node spinlock

回复: [PATCH v3] mm/slab.c: add node spinlock protect in __cache_free_alien

发件人: David Rientjes 发送时间: 2020年7月31日 7:45 收件人: Zhang, Qiang 抄送: c...@linux.com; penb...@kernel.org; iamjoonsoo@lge.com; a...@linux-foundation.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH v3] mm/slab.c: add node spinlock

回复: KASAN: use-after-free Read in delete_and_unsubscribe_port (2)

发件人: linux-kernel-ow...@vger.kernel.org 代表 syzbot 发送时间: 2020年7月30日 11:33 收件人: alsa-devel-ow...@alsa-project.org; alsa-de...@alsa-project.org; linux-kernel@vger.kernel.org; pe...@perex.cz; syzkaller-b...@googlegroups.com; ti...@suse.com 主题: Re: KASAN:

回复: INFO: rcu detected stall in tc_modify_qdisc

发件人: linux-kernel-ow...@vger.kernel.org 代表 syzbot 发送时间: 2020年7月29日 13:53 收件人: da...@davemloft.net; fweis...@gmail.com; j...@mojatatu.com; j...@resnulli.us; linux-kernel@vger.kernel.org; mi...@kernel.org; net...@vger.kernel.org; syzkaller-b...@googlegr

回复: [PATCH] mm/slab.c: add node spinlock protect in __cache_free_alien

发件人: David Rientjes 发送时间: 2020年7月29日 3:46 收件人: Zhang, Qiang 抄送: c...@linux.com; penb...@kernel.org; iamjoonsoo@lge.com; a...@linux-foundation.org; linux...@kvack.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] mm/slab.c: add node spinlock protect

回复: [PATCH v2] tipc: Don't using smp_processor_id() in preemptible code

发件人: Zhang, Qiang 发送时间: 2020年7月15日 13:27 收件人: Tuong Tong Lien; Eric Dumazet; jma...@redhat.com; da...@davemloft.net; k...@kernel.org; Xue, Ying 抄送: net...@vger.kernel.org; tipc-discuss...@lists.sourceforge.net; linux-kernel@vger.kernel.org 主题: 回复

回复: [PATCH v2] tipc: Don't using smp_processor_id() in preemptible code

发件人: Tuong Tong Lien 发送时间: 2020年7月15日 11:53 收件人: Zhang, Qiang; Eric Dumazet; jma...@redhat.com; da...@davemloft.net; k...@kernel.org; Xue, Ying 抄送: net...@vger.kernel.org; tipc-discuss...@lists.sourceforge.net; linux-kernel@vger.kernel.org 主题: RE

回复: [PATCH v2] tipc: Don't using smp_processor_id() in preemptible code

发件人: Eric Dumazet 发送时间: 2020年7月14日 22:15 收件人: Zhang, Qiang; jma...@redhat.com; da...@davemloft.net; k...@kernel.org; tuong.t.l...@dektech.com.au; eric.duma...@gmail.com; Xue, Ying 抄送: net...@vger.kernel.org; tipc-discuss...@lists.sourceforge.net; linux

回复: WARNING in submit_audio_out_urb/usb_submit_urb

h asynchronous operations. can replace "cancel_delayed_work" with" cancel_delayed_work_sync" in "line6_disconnect" func？ Zhang Qiang Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. It may contain errors. See https://goo.

回复: 回复: [kthread] a90477f0c9: WARNING:at_kernel/kthread.c:#kthread_queue_work

Thanks for you reply Pter, if the patch was add , like you said there are more work to do. so need remove the patch from -mm tree. Best Regards, Zhang Qiang 发件人: Petr Mladek 发送时间: 2020年7月7日 17:47 收件人: Zhang, Qiang 抄送: Andrew Morton; linux-kernel

回复: [PATCH v4] kthread: Work could not be queued when worker being destroyed

Sorry, Pter Mladek, this is my mistake please ignore this change. 发件人: linux-kernel-ow...@vger.kernel.org 代表 Petr Mladek 发送时间: 2020年7月7日 17:06 收件人: Zhang, Qiang 抄送: ben.do...@codethink.co.uk; bfie...@redhat.com; c...@rock-chips.com; pet

回复: [PATCH v3] usb: gadget: function: fix missing spinlock in f_uac1_legacy

io_out_ep_complete" func there is no protection for the operation of this "audio->play_queue". there are missing spinlock, Fix tags should add up here commit？ ________ 发件人: Greg KH 发送时间: 2020年7月7日 3:55 收件人: Zhang, Qiang 抄送: ba...@kernel.org; colin.k...@ca

回复: [PATCH v3] kthread: Work could not be queued when worker being destroyed

ker_fn is not begin running, if queue work to worker, the "!worker->task" = true, trigger WARN. ____ 发件人: Tejun Heo 代表 Tejun Heo 发送时间: 2020年7月6日 22:59 收件人: Zhang, Qiang 抄送: ben.do...@codethink.co.uk; bfie...@redhat.com; c...@rock-chips.com; pet...@infradead.org; pmla...@sus

回复: [PATCH v2] usb: gadget: function: fix missing spinlock in f_uac1_legacy

Thanks for your suggestin Greg KH I think there is not need fix tags. I will resend. thanks, Zhang Qiang 发件人: Greg KH 发送时间: 2020年7月6日 18:31 收件人: Zhang, Qiang 抄送: ba...@kernel.org; colin.k...@canonical.com; linux-...@vger.kernel.org; linux-kernel

回复: [kthread] a90477f0c9: WARNING:at_kernel/kthread.c:#kthread_queue_work

发件人: Zhang, Qiang 发送时间: 2020年7月6日 18:17 收件人: Petr Mladek 抄送: Andrew Morton; linux-kernel@vger.kernel.org 主题: 回复: [kthread] a90477f0c9: WARNING:at_kernel/kthread.c:#kthread_queue_work Hi , Petr Mladek There some question for "Work could not be q

回复: [PATCH] usb: gadget: function: fix missing spinlock in f_uac1_legacy

Sorry, I will add changelog and resend. Zhang Qiang 发件人: Greg KH 发送时间: 2020年7月6日 15:40 收件人: Zhang, Qiang 抄送: ba...@kernel.org; colin.k...@canonical.com; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] usb: gadget: function: fix

回复: [PATCH] usb: gadget: function: fix missing spinlock in f_uac1_legacy

: function: fix missing spinlock in f_uac1_legacy From: Zhang Qiang Signed-off-by: Zhang Qiang --- drivers/usb/gadget/function/f_uac1_legacy.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/function/f_uac1_legacy.c b/drivers/usb/gadget/function/f_uac1_legacy.c index

回复: [PATCH] kthread: Don't cancel a work that is being cancelled

15:28 收件人: Zhang, Qiang 抄送: ben.do...@codethink.co.uk; bfie...@redhat.com; c...@rock-chips.com; pet...@infradead.org; t...@kernel.org; linux-kernel@vger.kernel.org 主题: Re: [PATCH] kthread: Don't cancel a work that is being cancelled On Thu 2020-07-02 12:43:24, qiang.zh...@windriver.com wrote: >

回复: [PATCH] usb: gadget: function: printer: The device interface is reset and should return error code

Hi Felipe, Please check this patch and make suggestions . Thanks Zqiang 发件人: linux-usb-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年6月28日 9:57 收件人: felipe.ba...@linux.intel.com 抄送: gre...@linuxfoundation.org; linux-...@vger.kernel.org;

回复: [PATCH] usb: gadget: function: printer: Add gadget dev interface status judgment

发件人: linux-usb-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年6月15日 17:46 收件人: ba...@kernel.org 抄送: gre...@linuxfoundation.org; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: [PATCH] usb: gadget: function: printer: Add gadge

回复: [PATCH] usb: gadget: function: printer: Add gadget dev interface status judgment

Hello, Greg KH Please have you review the patch? thanks Zqiang 发件人: linux-usb-ow...@vger.kernel.org 代表 qiang.zh...@windriver.com 发送时间: 2020年6月15日 17:46 收件人: ba...@kernel.org 抄送: gre...@linuxfoundation.org; linux-...@vger.kernel.org; linux-kernel@vger.ke

Re: [PATCH] usb: gadget: function: printer: fix use-after-free in __lock_acquire

I cannot find a reference count for this structure(printer_dev). In this scenario: When the Character device is still open, if you operate the device through configfs and execute commands like unlink, the resources allocated when the device is bound will be released(printer_dev). After that, if

回复: 回复: [PATCH v2] usb: gadget: function: printer: fix use-after-free in __lock_acquire

___ 发件人: Greg KH 发送时间: 2020年6月9日 17:48 收件人: Zhang, Qiang 抄送: ba...@kernel.org; linux-...@vger.kernel.org; linux-kernel@vger.kernel.org 主题: Re: 回复: [PATCH v2] usb: gadget: function: printer: fix use-after-free in __lock_acquire A: http://en.wikipedia.org/wiki/Top_post Q: Were do I find info abo

回复: [PATCH v2] usb: gadget: function: printer: fix use-after-free in __lock_acquire

Thank you for your suggestion two referenced counted objects in the same exact structure. another referenced is "dev->printer_cdev_open"? 发件人: Greg KH 发送时间: 2020年6月8日 15:33 收件人: Zhang, Qiang 抄送: ba...@kernel.org; linux-...@vger.kernel.org;

回复: [PATCH] usb: gadget: function: printer: Fix use-after-free in __lock_acquire()

Hi Markus. I don't need to add Fix tag to view the code. 发件人: Markus Elfring 发送时间: 2020年6月5日 16:57 收件人: Zhang, Qiang; linux-...@vger.kernel.org 抄送: kernel-janit...@vger.kernel.org; linux-kernel@vger.kernel.org; Alan Stern; Felipe Balbi; Greg

回复: [PATCH v5] workqueue: Remove unnecessary kfree() call in rcu_free_wq()

Thanks for your guide. I will try to change the weakness of weak wording. 发件人: Zhang, Qiang 发送时间: 2020年5月28日 9:41 收件人: Markus Elfring; Tejun Heo; Lai Jiangshan 抄送: linux-kernel@vger.kernel.org; kernel-janit...@vger.kernel.org 主题: 回复: [PATCH v5] workqueue

Re: [PATCH v3] workqueue: Fix double kfree for rescuer

ee(NULL)), this is unnecessary, so should remove. On 5/26/20 4:56 PM, Lai Jiangshan wrote: > On Mon, May 25, 2020 at 5:22 PM wrote: >> >> From: Zhang Qiang >> >> The callback function "rcu_free_wq" could be called after memory >> was relea