Package: ndctl Version: 71.1-1 Severity: serious For Debian 11.5 32 bit, I got below info:
apt-cache search ndctl libndctl-dev - Development files for libndctl libndctl6 - Utility library for managing the libnvdimm subsystem ndctl - Utility for managing the nvdimm subsystem It is same to what I got from Debian 11.5 64 bit: apt-cache search ndctl libndctl-dev - Development files for libndctl libndctl6 - Utility library for managing the libnvdimm subsystem ndctl - Utility for managing the nvdimm subsystem >From https://lists.debian.org/debian-devel/2016/12/msg00330.html, >https://lists.debian.org/debian-devel/2016/12/msg00343.html, NVDIMM will be >fully supported once OS has the package ndctl. But I found that Debian 11.5 32 bit vm couldn’t recognize the NVDIMM device: #cat /etc/debian_version 11.5 #uname -m i686 # dmesg | grep -i bios-e820 | grep persistent [ 0.000000] BIOS-e820: [mem 0x0000000240000000-0x000000043fffffff] persistent (type 7) # lsmod | grep -i pmem # lsmod | grep -i nvdimm The NVDIMM device has been added to Debian 11.5 32bit VM, and it appears in BIOS-e820 table, but no NVDIMM modules were loaded and no PMem device is listed For Debian 11.5 64 bit vm, I got below info: # cat /etc/debian_version 11.5 # uname -m x86_64 #dmesg | grep -i bios-e820 | grep persistent [ 0.000000] BIOS-e820: [mem 0x0000000240000000-0x000000043fffffff] persistent (type 7) # lsmod | grep -i pmem dax_pmem_compat 16384 0 device_dax 20480 1 dax_pmem_compat nd_pmem 24576 0 dax_pmem_core 16384 1 dax_pmem_compat nd_btt 28672 1 nd_pmem libnvdimm 200704 5 dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nfit # lsmod | grep -i nvdimm libnvdimm 200704 5 dax_pmem_core,nd_btt,nd_pmem,dax_pmem_compat,nfit So I’d like to confirm whether Debian 11.x 32 bit support NVDIMM or not. Your reply would be appreciated. Best regards, Winnie Yue
