Date: Sat, 21 Dec 2019 16:15:08 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 242773] ata driver as module, interrupt storm on atapci0 and low attachment speed for disks Message-ID: <bug-242773-227@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D242773 Bug ID: 242773 Summary: ata driver as module, interrupt storm on atapci0 and low attachment speed for disks Product: Base System Version: 11.3-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: emss@free.fr Created attachment 210107 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D210107&action= =3Dedit 11.3-STABLE dmesg for SE7525GP2 Hi, Intel SE7525GP2 MB (quite old, I know) When using MINIMAL and trying to load atapci as module, atapci reports low speed for attached disks : ada4 at ata2 bus 0 scbus4 target 0 lun 0 ada4: <SanDisk SSD PLUS 120GB UE4500RL> ACS-2 ATA SATA 3.x device ada4: Serial Number 1841B1803114 ada4: 33.000MB/s transfers (UDMA2, PIO 512bytes) ada4: 114480MB (234455040 512 byte sectors) Kernel spits messages about interrupt storm on irq used by atapci. When ata support is compiled into kernel, the reported speed is fine : ada4 at ata2 bus 0 scbus4 target 0 lun 0 ada4: <SanDisk SSD PLUS 120GB UE4500RL> ACS-2 ATA SATA 3.x device ada4: Serial Number 1841B1803114 ada4: 150.000MB/s transfers (SATA 1.x, UDMA5, PIO 512bytes) ada4: 114480MB (234455040 512 byte sectors) I've reproduced the same issue using a freshly compiled 12.1-STABLE kernel Regards =C3=89ric Masson --=20 You are receiving this mail because: You are the assignee for the bug.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-242773-227>