On 32 bit, with the 2008-04-13 install tree and kernel-xen-2.6.25-0.24.rc9.i686, I'm seeing: <4>------------[ cut here ]------------ <4>WARNING: at block/blk-core.c:334 blk_start_queue+0x25/0x6d() (Not tainted) <4>Modules linked in: sha256_generic aes_generic cbc dm_crypt crypto_blkcipher dm_emc dm_round_robin dm_multipath dm_snapshot dm_mirror dm_zero dm_mod xfs jfs reiserfs lock_nolock gfs2 msdos linear raid10 raid456 async_xor async_memcpy async_tx xor r aid1 raid0 xen_netfront xen_blkfront ipv6 iscsi_tcp libiscsi scsi_transport_iscsi scsi_mod ext2 ext3 jbd ext4dev jbd2 mbcache crc16 squashfs pcspkr edd loop nfs lockd nfs_acl sunrpc vfat fat cramfs <4>Pid: 0, comm: swapper Not tainted 2.6.25-0.24.rc9.fc9.i686.xen #1 <4> [<c042b0a1>] warn_on_slowpath+0x47/0x73 <4> [<c0405fcf>] ? xen_restore_fl_direct_end+0x0/0x1 <4> [<c0404df9>] ? force_evtchn_callback+0xd/0x10 <4> [<c040604a>] ? check_events+0x8/0xe <4> [<c0405fcf>] ? xen_restore_fl_direct_end+0x0/0x1 <4> [<c048451b>] ? kmem_cache_free+0x89/0x93 <4> [<c0404df9>] ? force_evtchn_callback+0xd/0x10 <4> [<c040604a>] ? check_events+0x8/0xe <4> [<c0405fcf>] ? xen_restore_fl_direct_end+0x0/0x1 <4> [<c048451b>] ? kmem_cache_free+0x89/0x93 <4> [<c04ea3b0>] ? __freed_request+0x20/0x77 <4> [<c04ea424>] ? freed_request+0x1d/0x34 <4> [<c04ea4ad>] ? __blk_put_request+0x72/0x77 <4> [<c04ea6d9>] ? end_that_request_last+0x227/0x22f <4> [<c04eb558>] blk_start_queue+0x25/0x6d <4> [<e0a05739>] kick_pending_request_queues+0x19/0x24 [xen_blkfront] <4> [<e0a058cb>] blkif_interrupt+0x187/0x1a1 [xen_blkfront] <4> [<c045fce8>] handle_IRQ_event+0x2a/0x5a <4> [<c0460c9c>] handle_level_irq+0x7a/0xbe <4> [<c0460c22>] ? handle_level_irq+0x0/0xbe <4> [<c040aee8>] do_IRQ+0x98/0xc4 <4> [<c0404f9a>] xen_evtchn_do_upcall+0x75/0xac <4> [<c0409830>] xen_hypervisor_callback+0x3c/0x44 <4> [<c0403111>] ? xen_safe_halt+0x10/0x1b <4> [<c0403e5c>] ? xen_idle+0x0/0x40 <4> [<c0403e8b>] xen_idle+0x2f/0x40 <4> [<c0407b44>] cpu_idle+0xa1/0xc1 <4> [<c06256e5>] rest_init+0x49/0x4b <4> ======================= <4>---[ end trace 5e0ebc484baf5166 ]--- ... <3>end_request: I/O error, dev xvda, sector 17296121 <3>Buffer I/O error on device dm-0, logical block 2111764 <4>lost page write due to I/O error on dm-0 ... Full log attached (Dom0 is a fairly up to date rawhide running a 2.6.21.7 kernel-xen)
Created attachment 302565 [details] syslog
Oh, and I'm *not* seeing this during 64 bit installs
Also, installs do seem to complete just fine in spit of the I/O errors
Changing version to '9' as part of upcoming Fedora 9 GA. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
This happens when trying to install i386 domU F9 on x86_64 Dom0 F8. Installing x86_64 domU F9 on x86_64 dom0 F8 works, but can't boot properly (after testing I will create a new bug).
Not sure whether we still get these warnings, but they don't seem to be causing problems in practice, so closing for now ...