https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211028
--- Comment #15 from Dexuan Cui <de...@microsoft.com> --- Hi all, I know why g_disk_resize() can't work here when I open da1 for reading after a disk capacity change: When /dev/da1 is opened for reading (or writing) every time, amd64_syscall() -> kern_openat() -> ... -> g_dev_open() -> g_access() -> g_disk_access() -> daopen() -> dareprobe() sends the DA_STATE_PROBE_RC16 command; if the disk capacity was changed, in g_disk_access(), we update provide's mediasize ***immediately***: pp->mediasize = dp->d_mediasize; Later, in disk_resize(), g_disk_resize() -> g_resize_provider(): because of disk's size == pp->mediasize, g_resize_provider() doesn't post the g_resize_provider_event event at all. This is why "camcontrol reprobe da1" can't help. BTW, opening da1 for writing can work because the provider is destroyed and re-created, as you mentioned. I'll be proposing a patch. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-bugs@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
