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[Bug 1917442] Re: [AHCI] crash when running a GNU/Hurd guest
From: |
Thomas Huth |
Subject: |
[Bug 1917442] Re: [AHCI] crash when running a GNU/Hurd guest |
Date: |
Fri, 18 Jun 2021 16:35:33 -0000 |
This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:
https://gitlab.com/qemu-project/qemu/-/issues/437
** Changed in: qemu
Status: Incomplete => Expired
** Changed in: qemu
Assignee: John Snow (jnsnow) => (unassigned)
** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #437
https://gitlab.com/qemu-project/qemu/-/issues/437
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https://bugs.launchpad.net/bugs/1917442
Title:
[AHCI] crash when running a GNU/Hurd guest
Status in QEMU:
Expired
Bug description:
QEMU git hash = 51db2d7cf2
Running guest OS using:
$ gdb --args /extra/qemu/bin/qemu-system-i386 -M q35,accel=kvm -m 4096
-net user,hostfwd=tcp::8888-:22 -net nic -drive
id=udisk,file=/dev/sdd,format=raw,if=none -device ide-
drive,drive=udisk,bootindex=1 -curses
...
root@zamhurd:~# .ahcisata0 channel 5: setting WDCTL_RST failed for
drive 0
Thread 1 "qemu-system-i38" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff4f7bf00 (LWP 590666)]
ahci_commit_buf (dma=0x555557335870, tx_bytes=2048) at ../hw/ide/ahci.c:1462
1462 tx_bytes += le32_to_cpu(ad->cur_cmd->status);
(gdb) bt full
#0 ahci_commit_buf (dma=0x555557335870, tx_bytes=2048)
at ../hw/ide/ahci.c:1462
ad = 0x555557335870
#1 0x0000555555893171 in dma_buf_commit (s=0x555557335930, tx_bytes=2048)
at ../hw/ide/core.c:805
#2 0x00005555558934f8 in ide_dma_cb (opaque=0x555557335930, ret=0)
at ../hw/ide/core.c:887
s = 0x555557335930
n = 4
sector_num = 4491160
offset = 140732794753312
stay_active = false
prep_size = 0
__PRETTY_FUNCTION__ = "ide_dma_cb"
#3 0x0000555555830720 in dma_complete (dbs=0x7ffee83d5120, ret=0)
at ../softmmu/dma-helpers.c:121
__PRETTY_FUNCTION__ = "dma_complete"
#4 0x00005555558307cd in dma_blk_cb (opaque=0x7ffee83d5120, ret=0)
at ../softmmu/dma-helpers.c:139
dbs = 0x7ffee83d5120
cur_addr = 140732794753408
cur_len = 93825013280880
mem = 0x7ffeeccfef00
__PRETTY_FUNCTION__ = "dma_blk_cb"
#5 0x0000555555d92bce in blk_aio_complete (acb=0x7ffee847bbe0)
at ../block/block-backend.c:1412
#6 0x0000555555d92df0 in blk_aio_read_entry (opaque=0x7ffee847bbe0)
at ../block/block-backend.c:1466
acb = 0x7ffee847bbe0
rwco = 0x7ffee847bc08
qiov = 0x7ffee83d5180
__PRETTY_FUNCTION__ = "blk_aio_read_entry"
#7 0x0000555555e85580 in coroutine_trampoline (i0=-398117056, i1=32766)
at ../util/coroutine-ucontext.c:173
arg = {p = 0x7ffee8453740, i = {-398117056, 32766}}
self = 0x7ffee8453740
co = 0x7ffee8453740
fake_stack_save = 0x0
#8 0x00007ffff6544020 in __start_context () at /lib64/libc.so.6
#9 0x00007ffeefdfd680 in ()
#10 0x0000000000000000 in ()
(gdb)
(gdb) l
1457 */
1458 static void ahci_commit_buf(const IDEDMA *dma, uint32_t tx_bytes)
1459 {
1460 AHCIDevice *ad = DO_UPCAST(AHCIDevice, dma, dma);
1461
1462 tx_bytes += le32_to_cpu(ad->cur_cmd->status);
1463 ad->cur_cmd->status = cpu_to_le32(tx_bytes);
1464 }
1465
1466 static int ahci_dma_rw_buf(const IDEDMA *dma, bool is_write)
(gdb) p ad
$1 = (AHCIDevice *) 0x555557335870
(gdb) p ad->cur_cmd
$2 = (AHCICmdHdr *) 0x0
(gdb)
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