如果smp_processor_id()在可抢占上下文中被调用,它可能返回的不是调用它的CPU的ID,而是被抢占后执行它的CPU的ID。 3. 用户遇到的bug的具体表现和可能的原因 从提供的错误日志来看,用户遇到的bug表现为在调用zpool import时,内核日志中出现了“BUG: using smp_processor_id() in preemp
seems have been submitted as a bug of preempt kernel debugging function of debug_smp_processor_id() in kernel 2.6.28/29. A patch will fix the issue diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c index 0f8fc22..4689cb0 100644 --- a/lib/smp_processor_id.c +++ ...
baremetal on Raspberry Pi 3 (64bit) Running RancherOS in a docker swarm with three manager nodes (Raspberry Pi 3). I get tons of kernel errors like this: [ 129.901445] BUG: using smp_processor_id() in preemptible [00000000] code: node/1877 [ 129.901469] caller is debug_smp_processor_...
> [72770.969617] BUG: using smp_processor_id() in preemptible [00000000] > code: wpa_supplicant/16207 > [72770.969638] caller is ieee80211_xmit_fast_finish+0x5a/0x1e0 [mac80211] > [72770.969640] CPU: 2 PID: 16207 Comm: wpa_supplicant Tainted: G > W 5.2.11-arch1-1-ARCH #1 > [727...
Revert "PM / devfreq: rockchip_dmc: Fix using smp_processor_id() in preemptible warning"This reverts commit 67721b1. The get_cup() will disable preemption and the clk_set_rate() may call schedule() on some platforms, otherwise we may schedule while atomic. BUG: scheduling while atomic...
In contrast, HARDLOG controls all usage of non-preemptible resources to assign them to the critical tasks with a small, bounded delay. Furthermore, HARD- LOG isolates micro-architectural components (e.g., Translation Lookaside Buffer (TLB) and caches) at the host to ensure that the adversary...
[ 0.144222] CPU3: Booted secondary processor 0x0000000003 [0x410fd034][ 0.144282] smp: Brought up 1 node, 4 CPUs[ 0.144302] SMP: Total of 4 processors activated.[ 0.144309] CPU features: detected: 32-bit EL0 Support[ 0.144316] CPU features: detected: CRC32 instructions...
CPU2: Booted secondary processor CPU2: thread -1, cpu 2, socket 0, mpidr 80000002 CPU3: Booted secondary processor CPU3: thread -1, cpu 3, socket 0, mpidr 80000003 Brought up 4 CPUs SMP: Total of 4 processors activated (6324.22 BogoMIPS). CPU: All CPU(s) started ...
[ 0.086303] CPU1: Booted secondary processor 0x0000000001 [0x411fd080][ 0.086356] smp: Brought up 1 node, 2 CPUs[ 0.115702] SMP: Total of 2 processors activated.[ 0.120507] CPU features: detected: 32-bit EL0 Support[ 0.125762] CPU features: detected: CRC32 instr...
00 Id: 00 Lun: 00 Vendor: ATA Model: TOSHIBA MQ01ABD1 Rev: 1U Type: Direct-Access ANSI SCSI revision: 05 root@iSharing:~# root@iSharing:~# vi sataspeed for i in `grep -l Gbps /sys/class/ata_link/*/sata_spd`; do echo Link "${i%/*}" Speed `cat $i` cat "${i%/*}"/...