On Mon, Nov 13, 2023 at 03:30:57AM +0000, bugzilla-daemon@xxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=217914 > > Christian Kujau (kernel@xxxxxxxxxxxxxxx) changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |kernel@xxxxxxxxxxxxxxx > > --- Comment #7 from Christian Kujau (kernel@xxxxxxxxxxxxxxx) --- > Noticed the same here when upgrading from 6.1.0-13-amd64 to > 6.5.0-0.deb12.1-amd64 (both Debian kernels) earlier this month: > > ============================================================================ > $ sar -f /var/log/sysstat/sa20231108 > CPU %user %nice %system %iowait %steal %idle > [...] > 18:30:03 all 1.03 0.00 0.45 0.04 0.00 98.47 > 18:40:01 all 1.07 0.00 0.52 0.05 0.00 98.36 > 18:50:01 all 1.07 0.00 0.53 0.04 0.00 98.37 > 19:00:01 all 1.35 0.00 0.69 0.08 0.00 97.88 > 19:10:04 all 1.09 0.00 0.52 0.07 0.00 98.31 > 19:20:02 all 1.14 0.00 0.51 0.05 0.00 98.30 > 19:30:04 all 1.62 0.00 0.65 0.08 0.00 97.65 > Average: all 1.06 0.00 0.50 0.06 0.00 98.38 > > 19:32:27 LINUX RESTART (2 CPU) > > 19:40:03 CPU %user %nice %system %iowait %steal %idle > 19:50:00 all 2.27 0.00 3.23 57.40 0.00 37.11 > 20:00:02 all 1.29 0.00 2.70 59.27 0.00 36.75 > 20:10:03 all 1.48 0.00 2.93 58.38 0.00 37.21 > 20:20:03 all 1.40 0.00 2.94 58.93 0.00 36.73 > 20:30:02 all 1.39 0.00 2.87 59.99 0.00 35.74 > 20:40:03 all 1.48 0.00 3.44 59.83 0.00 35.26 > 20:50:00 all 1.29 0.00 2.88 60.84 0.00 34.98 > 21:00:03 all 1.31 0.00 2.63 59.81 0.00 36.25 > 21:10:03 all 1.33 0.00 2.72 59.85 0.00 36.09 > 21:20:01 all 1.31 0.00 2.82 59.28 0.00 36.59 > 21:30:01 all 1.39 0.00 2.92 60.51 0.00 35.18 > 21:40:01 all 1.34 0.00 3.04 60.04 0.00 35.57 > 21:50:03 all 1.29 0.00 2.51 59.79 0.00 36.41 > 22:00:03 all 1.36 0.00 3.23 59.81 0.00 35.59 > 22:10:03 all 1.37 0.00 2.56 59.13 0.00 36.93 > 22:20:03 all 1.36 0.00 2.88 58.46 0.00 37.29 > 22:30:03 all 1.31 0.00 2.65 59.07 0.00 36.97 > 22:40:00 all 1.32 0.00 2.72 59.61 0.00 36.35 > 22:50:01 all 1.32 0.00 2.72 59.35 0.00 36.61 > 23:00:03 all 1.29 0.00 2.68 59.30 0.00 36.72 > 23:10:03 all 1.35 0.00 2.62 60.11 0.00 35.91 > 23:20:02 all 1.29 0.00 2.91 59.55 0.00 36.25 > 23:30:03 all 1.32 0.00 2.72 58.37 0.00 37.59 > 23:40:01 all 1.34 0.00 2.97 57.74 0.00 37.95 > 23:50:00 all 1.33 0.00 2.54 59.90 0.00 36.24 > Average: all 1.38 0.00 2.83 59.37 0.00 36.41 > > $ last -n 3 reboot > reboot system boot 6.5.0-0.deb12.1- Wed Nov 8 19:32 still running > reboot system boot 6.1.0-13-amd64 Mon Oct 9 23:14 - 19:32 (29+21:17) > reboot system boot 6.1.0-13-amd64 Mon Oct 9 22:39 - 23:14 (00:35) > ============================================================================ > > And top only shows a single [scsi_eh_2] thread using ~50% of CPU time, > sometimes there's an events thread too. > > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 336 root 20 0 0.0m 0.0m 0.0m D 50.0 0.0 53,37 > [scsi_eh_2] > 3794126 root 20 0 0.0m 0.0m 0.0m I 25.7 0.0 0:06.27 > [kworker/0:0-events] > > This is a Debian/amd64 VM running on a VMware ESX host. There's a virtual CDROM > drive, but nothing is attached here and I'm not using it, all: > > > ============================================================================ > $ lsblk -d --scsi > NAME HCTL TYPE VENDOR MODEL REV SERIAL > TRAN > sda 0:0:0:0 disk VMware Virtual disk 2.0 > sr0 2:0:0:0 rom NECVMWar VMware Virtual IDE CDROM Drive 1.00 > 10000000000000000001 ata > > > $ dmesg -t | grep -i scsi > Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) > SCSI subsystem initialized > VMware PVSCSI driver - version 1.0.7.0-k > vmw_pvscsi: using 64bit dma > vmw_pvscsi: max_id: 65 > vmw_pvscsi: setting ring_pages to 32 > vmw_pvscsi: enabling reqCallThreshold > vmw_pvscsi: driver-based request coalescing enabled > vmw_pvscsi: using MSI-X > scsi host0: VMware PVSCSI storage adapter rev 2, req/cmp/msg rings: 32/32/1 > pages, cmd_per_lun=254 > vmw_pvscsi 0000:03:00.0: VMware PVSCSI rev 2 host #0 > scsi 0:0:0:0: Direct-Access VMware Virtual disk 2.0 PQ: 0 ANSI: 6 > sd 0:0:0:0: [sda] Attached SCSI disk > sd 0:0:0:0: Attached scsi generic sg0 type 0 > scsi host1: ata_piix > scsi host2: ata_piix > scsi 2:0:0:0: CD-ROM NECVMWar VMware IDE CDR10 1.00 PQ: 0 ANSI: 5 > scsi 2:0:0:0: Attached scsi generic sg1 type 5 > sr 2:0:0:0: [sr0] scsi3-mmc drive: 1x/1x writer dvd-ram cd/rw xa/form2 cdda > tray > sr 2:0:0:0: Attached scsi CD-ROM sr0 > ============================================================================ > > Will that "scsi: Do no try to probe for CDL on old drives" patch land in > mainline or is this still under discussion? It has been in mainline for a while: 2132df16f53b ("scsi: core: ata: Do no try to probe for CDL on old drives") $ git tag --contains 2132df16f53b v6.6 v6.6-rc4 v6.6-rc5 v6.6-rc6 v6.6-rc7 v6.6.1 v6.7-rc1 Kind regards, Niklas
