linux-kernel - RE: rcu_preempt caused oom

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Date:   Fri, 30 Nov 2018 15:18:58 +0000
From:   "He, Bo" <bo.he@...el.com>
To:     Steven Rostedt <rostedt@...dmis.org>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "josh@...htriplett.org" <josh@...htriplett.org>,
        "mathieu.desnoyers@...icios.com" <mathieu.desnoyers@...icios.com>,
        "jiangshanlai@...il.com" <jiangshanlai@...il.com>,
        "Zhang, Jun" <jun.zhang@...el.com>,
        "Xiao, Jin" <jin.xiao@...el.com>,
        "Zhang, Yanmin" <yanmin.zhang@...el.com>
Subject: RE: rcu_preempt caused oom

Here is the kernel cmdline:

Kernel command line: androidboot.acpio_idx=0  androidboot.bootloader=efiwrapper-02_03-userdebug_kernelflinger-06_03-userdebug androidboot.diskbus=00.0 androidboot.verifiedbootstate=green androidboot.bootreason=power-on androidboot.serialno=R1J56L6006a7bb g_ffs.iSerialNumber=R1J56L6006a7bb no_timer_check noxsaves reboot_panic=p,w i915.hpd_sense_invert=0x7 mem=2G nokaslr nopti ftrace_dump_on_oops trace_buf_size=1024K intel_iommu=off gpt loglevel=4 androidboot.hardware=gordon_peak firmware_class.path=/vendor/firmware relative_sleep_states=1 enforcing=0 androidboot.selinux=permissive cpu_init_udelay=10 androidboot.android_dt_dir=/sys/bus/platform/devices/ANDR0001:00/properties/android/ pstore.backend=ramoops memmap=0x1400000$0x50000000 ramoops.mem_address=0x50000000 ramoops.mem_size=0x1400000 ramoops.record_size=0x4000 ramoops.console_size=0x1000000 ramoops.ftrace_size=0x10000 ramoops.dump_oops=1 vga=current 
i915.modeset=1 drm.atomic=1 i915.nuclear_pageflip=1 drm.vblankoffdelay=

-----Original Message-----
From: Steven Rostedt <rostedt@...dmis.org> 
Sent: Friday, November 30, 2018 11:17 PM
To: Paul E. McKenney <paulmck@...ux.ibm.com>
Cc: He, Bo <bo.he@...el.com>; linux-kernel@...r.kernel.org; josh@...htriplett.org; mathieu.desnoyers@...icios.com; jiangshanlai@...il.com; Zhang, Jun <jun.zhang@...el.com>; Xiao, Jin <jin.xiao@...el.com>; Zhang, Yanmin <yanmin.zhang@...el.com>
Subject: Re: rcu_preempt caused oom

On Fri, 30 Nov 2018 06:43:17 -0800
"Paul E. McKenney" <paulmck@...ux.ibm.com> wrote:

> Could you please send me your list of kernel boot parameters?  They 
> usually appear near the start of your console output.

Or just: cat /proc/cmdline

-- Steve