smp_call_function(print_id,&cpu,1); } }代码就这些 看下makefile obj-m := smptest_module.o smptest_module-objs := test_printk.o--- make -C /usr/src/kernels/3.6.10-2.fc16.x86_64/ M=`pwd` modules 然后安装模块 sudo insmod smptest_module.ko dmesg 看下输出. 1. 2. 3. 4. 5...
在CPU 中发生软锁定,一个任务调用了 smp_call_function_many() 并等待目标 CPU 处理 IPI。 Raw [26314590.124689] watchdog: BUG: soft lockup - CPU#63 stuck for 22s! [kworker/63:1:1026052] [26314590.132847] Modules linked in: nf_tables nfnetlink sctp sit tunnel4 ip_tunnel 8021q garp mrp stp...
:WARNING: at kernel/smp.c:387 smp_call_function_many+0xad/0x2c0() :Modules linked in: ext4 mbcache jbd2 sd_mod sr_mod crc_t10dif cdrom crct10dif_common mgag200 syscopyarea sysfillrect sysimgblt isci i2c_algo_bit drm_kms_helper ttm libsas ahci drm scsi_transport_sas libahci libat...
smp: Add a smp_cond_func_t argument to smp_call_function_many() Browse files on_each_cpu_cond_mask() allocates a new CPU mask. The newly allocated mask is a subset of the provided mask based on the conditional function. This memory allocation can be avoided by extending smp_call_...
在CPU 中发生软锁定,一个任务调用了 smp_call_function_many() 并等待目标 CPU 处理 IPI。 Raw [26314590.124689] watchdog: BUG: soft lockup - CPU#63 stuck for 22s! [kworker/63:1:1026052] [26314590.132847] Modules linked in: nf_tables nfnetlink sctp sit tunnel4 ip_tunnel 8021q garp mrp stp...
タスクが smp_call_function_many() を呼び出し、対象の CPU による IPI の処理を待つ際に CPU でソフトロックアップが発生します。 Raw [26314590.124689] watchdog: BUG: soft lockup - CPU#63 stuck for 22s! [kworker/63:1:1026052] [26314590.132847] Modules linked in: nf_tables nfnetlink...
A soft lockup happens on a CPU on which a task is calling smp_call_function_many() and waiting for a targeted CPU to handle the IPI. Raw [26314590.124689] watchdog: BUG: soft lockup - CPU#63 stuck for 22s! [kworker/63:1:1026052] [26314590.132847] Modules linked in: nf_tables nfnet...